Publications
| Title | Abstract | Year(sorted descending) Filter | PMID Filter |
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| release of feruloylated oligosaccharides from wheat bran through submerged fermentation by edible mushrooms. | wheat bran, a by-product of the flour industry, is believed to be a raw material for the production of feruloylated oligosaccharides (fos) because of its high content of conjiont ferulic acid (fa). studies were carried out to identify edible mushrooms that are able to release fos from wheat bran. all the six tested mushrooms (pleurotus ostreatus, hericium erinaceum, auricularia auricula, cordyceps militaris, agrocybe chaxingu, and ganoderma lucium) were found to release fos, and agrocybe chaxing ... | 2014 | 24123163 |
| biodegradation of naphthalenesulphonate polymers: the potential of a combined application of fungi and bacteria. | the potential of several fungi and their synergy with bacterial biomasses were evaluated as a solution for the removal of 2-naphthalensulphonic acid polymers (2-nsaps) from petrochemical wastewater, characterized by a chemical oxygen demand (cod) greater than 9000 mg/l. the ability of fungi to grow on 2-nsap mixtures was preliminarily investigated using a solid medium, and then the action of the selected strains, both in suspended and immobilized form, was evaluated in terms of degradation, depo ... | 2014 | 25351603 |
| immobilization of defined laccase combinations for enhanced oxidation of phenolic contaminants. | immobilization is an important method to increase enzyme stability and allow enzyme reuse. one interesting application in the field of environmental biotechnology is the immobilization of laccase to eliminate phenolic contaminants via oxidation. fumed silica nanoparticles have interesting potential as support material for laccase immobilization via sorption-assisted immobilization in the perspective of applications such as the elimination of micropollutants in aqueous phases. based on these fact ... | 2014 | 23812279 |
| evaluation of the chemical and antioxidant properties of wild and cultivated mushrooms of ghana. | knowledge of the chemical composition of both wild and cultivated edible mushrooms in ghana is limited. this study reports their nutritional value, composition in lipophilic and hydrophilic molecules, minerals and antioxidant properties. the samples were found to be nutritionally rich in carbohydrates, ranging from 64.14 ± 0.93 g in pleurotus ostreatus strain em-1 to 80.17 ± 0.34 g in lentinus squarosullus strain lsf. the highest level of proteins (28.40 ± 0.86 g) was recorded in the mentioned p ... | 2014 | 25432007 |
| storage temperature and uv-irradiation influence on the ergosterol content in edible mushrooms. | ergosterol (5,7,22-ergostatrien-3β-ol) and ergosteryl derivatives from different genera of edible mushrooms were separated and quantified by an isocratic reversed-phase high performance liquid chromatography (hplc) method. the technique allowed a rapid separation of free ergosterol and two ergosteryl derivatives occurring in mushrooms. the ergosterol content varied considerably depending on the fungus. thus, the species agaricus bisporus and hygrophorus marzuolus presented high quantities of erg ... | 2014 | 24206714 |
| bioconversion of lignocellulosic residues by agrocybe cylindracea and pleurotus ostreatus mushroom fungi--assessment of their effect on the final product and spent substrate properties. | nine agro-industrial and forestry by-products were subjected to solid-state fermentation by agrocybe cylindracea and pleurotus ostreatus, and the process and end-products were comparatively evaluated. grape marc waste plus cotton gin trash was the best performing medium for both fungi, while substrate composition had a marked effect on most cultivation parameters. biological efficiency was positively correlated with nitrogen, lignin and ash, and negatively with hemicelluloses and carbohydrate co ... | 2014 | 24837930 |
| purification and characterization of a novel fibrinolytic enzyme from culture supernatant of pleurotus ostreatus. | a fibrinolytic enzyme was produced by an edible mushroom of pleurotus ostreatus using submerged culture fermentation. the enzyme was purified from the culture supernatant by applying a combination of freeze-thaw treatment, ammonium sulfate precipitation, hydrophobic interaction, and gel filtration chromatographies. the enzyme was purified by a 147-fold, with a yield of 7.54%. the molecular masses of the enzyme an determined by gel filtration and sdspage were 13.6 and 18.2 kda, respectively. the ... | 2014 | 24248089 |
| efficiency of treatments for controlling trichoderma spp during spawning in cultivation of lignicolous mushrooms. | trichoderma spp is the cause of the green mold disease in mushroom cultivation production. many disinfection treatments are commonly applied to lignocellulose substrates to prevent contamination. mushroom growers are usually worried about the contaminations that may occur after these treatments during handling or spawning. the aim of this paper is to estimate the growth of the green mold trichoderma sp on lignocellulose substrates after different disinfection treatments to know which of them is ... | 2014 | 25763030 |
| assessing the effect of composting cassava peel based substrates on the yield, nutritional quality, and physical characteristics of pleurotus ostreatus (jacq. ex fr.) kummer. | cassava peel based substrate formulations as an alternative substrate were used to grow mushrooms. the effect of two compost heights, three composting periods on the mycelia growth, physical characteristics, yield, and nutritional qualities of pleurotus ostreatus (jacq. ex fr.) kummer was studied. mean mycelia growth of 16.2 cm after a period of seven (7) weeks was the best for 1.5 m compost height. cap diameter and stipe length differed significantly (p < 0.05) with the compost heights (0.8 m a ... | 2014 | 25580299 |
| nutrient digestibility, ruminal fermentation activities, serum parameters and milk production and composition of lactating goats fed diets containing rice straw treated with pleurotus ostreatus. | the study evaluated replacement of egyptian berseem clover (bc, trifolium alexandrinum) with spent rice straw (srs) of pleurotus ostreatus basidiomycete in diets of lactating baladi goats. nine lactating homo-parity baladi goats (average bw 23.8±0.4 kg) at 7 d postpartum were used in a triplicate 3×3 latin square design with 30 d experimental periods. goats were fed a basal diet containing 0 (control), 0.25 (srs25) and 0.45 (srs45) (w/w, dm basis) of srs. the control diet was berseem clover and ... | 2014 | 25049962 |
| potential of fungal co-culturing for accelerated biodegradation of petroleum hydrocarbons in soil. | the potential of fungal co-culture of the filamentous pestalotiopsis sp. ng007 with four different basidiomycetes--trametes versicolor u97, pleurotus ostreatus pl1, cerena sp. f0607, and polyporus sp. s133--for accelerating biodegradation of petroleum hydrocarbons (phcs) was studied using three different physicochemical characteristic phcs in soil. all the combinations showed a mutual intermingling mycelial interaction on the agar plates. however, only ng007/s133 (50/50) exhibited an optimum gro ... | 2014 | 24997261 |
| development of bioprocess for the production of laccase by pleurotus ostreatus mtcc 1802 using evolutionary optimization technique. | for cost effective production of laccase enzyme (benzenediol: oxygen oxidoreductase) from p. ostreatus mtcc 1802 through solid sate fermentation, physico-chemical parameters such as temperature (20-35 degrees c), incubation period (9-17 days) and substrate (neem bark and wheat bran, in various ratios, w/w) were optimized first by one parameter at time approach and then obtained optimum conditions were considered as zero level in evolutionary optimization factorial design technique. at statistica ... | 2014 | 25434106 |
| biodegradation of aflatoxin b1 in contaminated rice straw by pleurotus ostreatus mtcc 142 and pleurotus ostreatus ghbbf10 in the presence of metal salts and surfactants. | aflatoxin b1 (afb1) is a highly toxic fungal metabolite having carcinogenic, mutagenic and teratogenic effects on human and animal health. accidental feeding of aflatoxin-contaminated rice straw may be detrimental for ruminant livestock and can lead to transmission of this toxin or its metabolites into the milk of dairy cattle. white-rot basidiomycetous fungus pleurotus ostreatus produces ligninolytic enzymes like laccase and manganese peroxidase (mnp). these extracellular enzymes have been repo ... | 2014 | 24770873 |
| evaluation of the cytotoxic effects of cam therapies: an in vitro study in normal kidney cell lines. | the purpose of this current study was to justify the incorporation of complementary and alternate medicine (cam) in current cancer treatments. the major drawback of anticancer drugs is their nonselective killing, which ultimately leads to attrition of normal cells. keeping this as the foundation of our study, we made an effort to compare the cytotoxicity associated with a known chemotherapeutic drug 5-fluorouracil (5-fu), with certain cam therapies previously reported to have anticancer activity ... | 2014 | 24672319 |
| box-behnken methodology for cr (vi) and leather dyes removal by an eco-friendly biosorbent: f. vesiculosus. | this study focused on leather industrial effluents treatment by biosorption using fucus vesiculosus as low-cost adsorbent. these effluents are yellowish-brown color and high concentration of cr (vi). therefore, biosorption process was optimized using response surface methodology based on box-behnken design operating with a simulated leather effluent obtained by mixture of cr (vi) solution and four leather dyes. the key variables selected were initial solution ph, biomass dosage and cacl2 concent ... | 2014 | 24484851 |
| characterisation of potential antidiabetic-related proteins from pleurotus pulmonarius (fr.) quél. (grey oyster mushroom) by maldi-tof/tof mass spectrometry. | pleurotus pulmonarius has been reported to have a potent remedial effect on diabetic property and considered to be an alternative for type 2 diabetes mellitus treatment. this study aimed to investigate the antidiabetic properties of ammonium sulphate precipitated protein fractions from p. pulmonarius basidiocarps. preliminary results demonstrated that 30% (nh4)2so4 precipitated fraction (f30) inhibited saccharomyces cerevisiae α-glucosidase activity (24.18%), and 100% (nh4)2so4 precipitated frac ... | 2014 | 25243114 |
| medicinal and antimicrobial role of the oyster culinary-medicinal mushroom pleurotus ostreatus (higher basidiomycetes) cultivated on banana agrowastes in india. | oyster mushrooms, species of the genus pleurotus, are recognized for producing secondary metabolites with important medicinal properties. investigations were carried out to evaluate the antioxidative and antimicrobial properties of the edible mushroom pleurotus ostreatus (mtcc142) extracts cultivated on banana agrowastes. ethanolic extracts showed antimicrobial activities against gram-positive and gram-negative bacteria, and their in vitro antifungal activities against all fungi tested revealed ... | 2014 | 24941164 |
| chemical composition and nutritional and medicinal value of fruit bodies and submerged cultured mycelia of culinary-medicinal higher basidiomycetes mushrooms. | this research gives the results of a proximate analysis (moisture, ash, crude protein, fat, total carbohydrates, and total energy); a bioactive compounds analysis (γ-aminobutyric acid [gaba], ergothioneine, lovastatin, and cordycepin); fatty acid and amino acid analysis; and an analysis of macro- and microelement content of fruit bodies and mycelia of 15 higher basidiomycetes medicinal mushroom strains belonging to 12 species. the results obtained demonstrate that almost all investigated mushroo ... | 2014 | 24941169 |
| comparison of the interleukin-1β-inducing potency of allergenic spores from higher fungi (basidiomycetes) in a cryopreserved human whole blood system. | spores from basidiomycete fungi (basidiospores) are highly prevalent in the atmosphere of urban and rural settings. studies have confirmed their potential to affect human health as allergens. less is known about their potential to serve as stimuli of the innate immune system and induce proinflammatory reactions. | 2014 | 24356469 |
| abiotic and biotic degradation of oxo-biodegradable plastic bags by pleurotus ostreatus. | in this study, we evaluated the growth of pleurotus ostreatus plo6 using oxo-biodegradable plastics as a carbon and energy source. oxo-biodegradable polymers contain pro-oxidants that accelerate their physical and biological degradation. these polymers were developed to decrease the accumulation of plastic waste in landfills. to study the degradation of the plastic polymers, oxo-biodegradable plastic bags were exposed to sunlight for up to 120 days, and fragments of these bags were used as subst ... | 2014 | 25419675 |
| aflatoxin detoxification by manganese peroxidase purified from pleurotus ostreatus. | manganese peroxidase (mnp) was produced from white rot edible mushroom pleurotus ostreatus on the culture filtrate. the enzyme was purified to homogeneity using (nh4)2so4 precipitation, deae-sepharose and sephadex g-100 column chromatography. the final enzyme activity achieved 81 u ml(-1), specific activity 78 u mg(-1) with purification fold of 130 and recovery 1.2% of the crude enzyme. sds-page indicated that the pure enzyme have a molecular mass of approximately 42 kda. the optimum ph was betw ... | 2014 | 24948923 |
| antifungal activity of cinnamic acid derivatives involves inhibition of benzoate 4-hydroxylase (cyp53). | cyp53a15, from the sorghum pathogen cochliobolus lunatus, is involved in detoxification of benzoate, a key intermediate in aromatic compound metabolism in fungi. because this enzyme is unique to fungi, it is a promising drug target in fungal pathogens of other eukaryotes. | 2014 | 24314266 |
| the effect of pleurotus ostreatus arabinofuranosidase and its evolved variant in lignocellulosic biomasses conversion. | the fungal arabinofuranosidase from pleurotus ostreatus poabf recombinantly expressed in pichia pastoris rpoabf and its evolved variant rpoabf f435y/y446f were tested for their effectiveness to enhance the enzymatic saccharification of three lignocellulosic biomasses, namely arundo donax, corn cobs and brewer's spent grains (bsg), after chemical or chemical-physical pretreatment. all the raw materials were subjected to an alkaline pretreatment by soaking in aqueous ammonia solution whilst the bi ... | 2014 | 25046861 |
| [codon usage bias in the straw mushroom volvariella volvacea]. | we analyzed the whole genome coding sequence of volvariella volvacea to study the pattern utilization of codons by codon w 1.4.2. as results, 24 optimal codons were identified. moreover, the frequency of codons usage was calculated by cusp program. we compared the frequency of codons usage of v. volvacea with other organisms including 6 modal value species (homo sapiens, saccharomys cerevisiae, arabidopsis thalian, mus musculus, danio rerio and drosophila melanogaster) and 4 edible fungi (coprin ... | 2014 | 25720157 |
| microsatellites in the genome of the edible mushroom, volvariella volvacea. | using bioinformatics software and database, we have characterized the microsatellite pattern in the v. volvacea genome and compared it with microsatellite patterns found in the genomes of four other edible fungi: coprinopsis cinerea, schizophyllum commune, agaricus bisporus, and pleurotus ostreatus. a total of 1346 microsatellites have been identified, with mono-nucleotides being the most frequent motif. the relative abundance of microsatellites was lower in coding regions with 21 no./mb. howeve ... | 2014 | 24575404 |
| effective mutations in a high redox potential laccase from pleurotus ostreatus. | since the first report on a laccase, there has been a notable development in the interest towards this class of enzymes, highlighted from the number of scientific papers and patents about them. at the same time, interest in exploiting laccases-mainly high redox potential-for various functions has been growing exponentially over the last 10 years. despite decades of work, the molecular determinants of the redox potential are far to be fully understood. for this reason, interest in tuning laccase ... | 2014 | 24463760 |
| antioxidant activity via dpph, gram-positive and gram-negative antimicrobial potential in edible mushrooms. | edible mushrooms (ems) are nutritionally rich source of proteins and essential amino acids. in the present study, the antioxidant activity via 1,1-diphenyl-2-picrylhydrazyl (dpph) and antimicrobial potential in ems (pleurotus ostreatus, morchella esculenta, p. ostreatus (black), p. ostreatus (yellow) and pleurotus sajor-caju) were investigated. the dpph radical scavenging activity revealed that the significantly higher activity (66.47%) was observed in morchella esculenta at a maximum concentrat ... | 2014 | 23095488 |
| antiviral activity of basidiomycete mycelia against influenza type a (serotype h1n1) and herpes simplex virus type 2 in cell culture. | in this study, we investigated the in vitro antiviral activity of the mycelia of higher mushrooms against influenza virus type a (serotype h1n1) and herpes simplex virus type 2 (hsv-2), strain bh. all 10 investigated mushroom species inhibited the reproduction of influenza virus strain a/fm/1/47 (h1n1) in mdck cells reducing the infectious titer by 2.0-6.0 lg id50. four species, pleurotus ostreatus, fomes fomentarius, auriporia aurea, and trametes versicolor, were also determined to be effective ... | 2014 | 25358999 |
| water recycle as a must: decolorization of textile wastewaters by plant-associated fungi. | textile dye effluents are among the most problematic pollutants because of their toxicity on several organisms and ecosystems. low cost and ecocompatible bioremediation processes offer a promising alternative to the conventional and aspecific physico-chemical procedures adopted so far. here, microorganisms resident on three real textile dyeing effluent were isolated, characterized, and tested for their decolorizing performances. although able to survive on these real textile-dyeing wastewaters, ... | 2014 | 23553673 |
| screening of indigenously isolated fungi for lovastatin production and its in vivo evaluation. | seven indigenously isolated fungal strains (aspergillus niger, aspergillus flavus, aspergillus terreus, penicillium citrinum, penicillium notatum, pleurotus ostreatus and trichoderma viradae) were tested for their potential to produce cholesterol lowering drug lovastatin by using different agro-industrial wastes (corn cobs, corn stover, banana stalk, wheat straw, wheat bran, bagasse) in submerged as well as solid state fermentation. aspergillus terreus showed maximum production of 18.74 mg/100 m ... | 2014 | 24894549 |
| biosynthesis and characterization of silver nanoparticles produced by pleurotus ostreatus and their anticandidal and anticancer activities. | the biosynthesis of nanoparticles has received increasing interest because of the growing need to develop safe, cost-effective and environmentally friendly technologies for the synthesis of nano-materials. in this study, silver nanoparticles (agnps) were synthesized using a reduction of aqueous ag(+) ions with culture supernatant from pleurotus ostreatus. the bioreduction of agnps was monitored by ultra violet-visible spectroscopy and the obtained agnps were characterized by transmission electro ... | 2014 | 25053172 |
| mn²⁺-deficiency reveals a key role for the pleurotus ostreatus versatile peroxidase (vp4) in oxidation of aromatic compounds. | the manganese peroxidase gene family (mnps) is a part of the ligninolytic system of pleurotus ostreatus. this gene family is comprised of nine members, mnp1-9, encoding short manganese peroxidases (short-mnps) or versatile peroxidases (vps). we show that unlike in mn(2+)-amended glucose-peptone (gp) medium, where redundancy among mnps was reported, in mn(2+)-deficient gp medium mnp4 [encoding versatile peroxidase isoenzyme 4 (vp4)] has a key and nonredundant function. the abundance of mnps trans ... | 2014 | 24737058 |
| statistical optimization of ultraviolet irradiate conditions for vitamin d₂ synthesis in oyster mushrooms (pleurotus ostreatus) using response surface methodology. | response surface methodology (rsm) was used to determine the optimum vitamin d2 synthesis conditions in oyster mushrooms (pleurotus ostreatus). ultraviolet b (uv-b) was selected as the most efficient irradiation source for the preliminary experiment, in addition to the levels of three independent variables, which included ambient temperature (25-45°c), exposure time (40-120 min), and irradiation intensity (0.6-1.2 w/m2). the statistical analysis indicated that, for the range which was studied, i ... | 2014 | 24736742 |
| inactivation of a pleurotus ostreatus versatile peroxidase-encoding gene (mnp2) results in reduced lignin degradation. | lignin biodegradation by white-rot fungi is pivotal to the earth's carbon cycle. manganese peroxidases (mnps), the most common extracellular ligninolytic peroxidases produced by white-rot fungi, are considered key in ligninolysis. pleurotus ostreatus, the oyster mushroom, is a preferential lignin degrader occupying niches rich in lignocellulose such as decaying trees. here, we provide direct, genetically based proof for the functional significance of mnp to p. ostreatus ligninolytic capacity und ... | 2014 | 24119015 |
| changes in chemical composition and digestibility of three maize stover components digested by white-rot fungi. | maize stover (total stem and leaves) is not considered a ruminant feed of high nutritive value. therefore, an improvement in its digestibility may increase the viability of total forage maize production systems in marginal growth regions. the objective of this study was to describe the changes in chemical composition during the storage of contrasting components of maize stover (leaf, upper stem and lower stem) treated with either of two lignin degrading white-rot fungi (wrf; pleurotus ostreatus, ... | 2014 | 24112093 |
| anti-tumor and macrophage activation induced by alkali-extracted polysaccharide from pleurotus ostreatus. | pleurotus ostreatus is popularly consumed as traditional medicine and health food for enhancing immune function in china. polysaccharides from mushroom have been demonstrated to possess a wide range of health beneficial properties. this study was carried out to elucidate the immunomodulating effects and molecular mechanism involved in the in vivo and in vitro anti-tumor activities of alkali-extracted polysaccharide (wpop-n1) from the fruiting bodies of p. ostreatus. the results showed that wpop- ... | 2014 | 24942990 |
| telomerase inhibitory effects of medicinal mushrooms and lichens, and their anticancer activity. | telomerase has been widely accepted as a cancer marker and a promising therapeutic target for novel anticancer drugs. the aim of this study was to investigate the in vitro telomerase inhibitory effects of mushrooms and their anticancer properties. the inhibitory effects of mushrooms and lichens against telomerase activity of hl-60 cells were systematically assessed using polymerase chain reaction based on assay of telomeric repeat amplification protocol. telomerase inhibitory samples were furthe ... | 2014 | 24940901 |
| immobilization of a pleurotus ostreatus laccase mixture on perlite and its application to dye decolourisation. | in the present study, a crude laccase preparation from pleurotus ostreatus was successfully immobilized on perlite, a cheap porous silica material, and tested for remazol brilliant blue r (rbbr) decolourisation in a fluidized bed recycle reactor. results showed that rbbr decolourisation is mainly due to enzyme action despite the occurrence of dye adsorption-related enzyme inhibition. fine tuning of immobilization conditions allowed balancing the immobilization yield and the resulting rate of dec ... | 2014 | 24895564 |
| thiabendazole uptake in shimeji, king oyster, and oyster mushrooms and its persistence in sterile and nonsterile substrates. | thiabendazole in the substrates incurred from spraying and premixing was translocated to the pileus, stipe, and volva of selected mushrooms. the spraying on the substrates resulted in higher residues of thiabendazole in all three mushrooms than the premixing treatment. for premixing, in the five substrates, half-lives of thiabendazole were found to be 13.6 days for shimeji, 10.0 days for king oyster, 13.7 days for oyster, 19.1 days for sterilized substrate, and 8.4 days for nonsterilized substra ... | 2014 | 24432721 |
| pleurotus ostreatus, an edible mushroom, enhances glucose 6-phosphate dehydrogenase, ascorbate peroxidase and reduces xanthine dehydrogenase in major organs of aged rats. | aging is now considered to be associated with an elevation in oxidative damage to macromolecules and enhanced levels of inflammation. therefore, inhibition of age-related oxidative stress by natural supplement is an important study. | 2014 | 24392756 |
| hepato- and nephroprotective activities of a nigerian local king tuber oyster mushroom, pleurotus tuberregium (higher basidiomycetes), in chemically induced organ toxicities in rats. | chronic kidney disease, end-stage renal failure, and liver diseases are increasing worldwide and constitute a huge burden on health care costs, with attendant high morbidity and debility. despite advances in modern medicine, there are still no licensed drugs that satisfactorily restore lost kidney or hepatic functions. in this study the chemoprotective effects of the hot aqueous extract of a local edible oyster mushroom, pleurotus tuberregium (aptr), was evaluated in experimental liver and kidne ... | 2014 | 25271859 |
| impact of laccase enzyme inducers on solid waste compost maturity and stability. | the influence of inducers of laccase produced by pleurotus ostreatus-p1 on the physicochemical properties of solid waste compost was investigated. in order to examine the degree of humification and time period for maturity and stability of compost, three different treatments (t: laccase; t1: laccase+cuso4; and t2: laccase+cuso4+cacl2) were inoculated on solid waste in the initial stage of the composting process. during the composting process, the carbon nitrogen ratio (c/n), nitrate ([formula: s ... | 2014 | 25244141 |
| development of an improved variant of gh51 α-l-arabinofuranosidase from pleurotus ostreatus by directed evolution. | in this study, the α-l-arabinofuranosidase from pleurotus ostreatus was subjected to directed evolution by expressing a library of around 7000 randomly mutated variants by error prone polymerase chain reaction. high-throughput screening of the library for the most active variants was performed by assaying activity towards p-nitrophenyl α-l-arabinofuranoside, and a variant with higher activity than the wild type was selected, purified and characterised. it exhibited a kcat of 7.3 ×1 0¹ ± 0.3 min⁻ ... | 2014 | 24565609 |
| essential role of the n- and c-terminals of laccase from pleurotus florida on the laccase activity and stability. | poxa1b is the most thermostable laccase isoenzyme from pleurotus ostreatus. poxa1b is remarkably stable at alkaline ph (the t1/2 at ph 10 was 30 days), and its c-terminal affects its catalytic and stability properties. we cloned poxa1c from p. florida, which showed 99 % identity with poxa1b. poxa1c was functionally expressed in pichia pastoris. the functions of the n and c termini of poxa1c were investigated using site-directed mutagenesis. compared with poxa1c, the n-terminal r5v site effective ... | 2014 | 25161036 |
| antioxidant properties of mushroom mycelia obtained by batch cultivation and tocopherol content affected by extraction procedures. | the determination of the antioxidant potential of lyophilized mushroom mycelia from 5 strains of the species pleurotus ostreatus and coprinus comatus (obtained by submerged cultivation in batch system) was analyzed as ethanolic extracts by evaluating abts and the hydroxyl scavenging activity, frap method, the chelating capacity, the inhibition of human erythrocyte hemolysis, and the inhibition of xanthine oxidase activity. the main compounds present in all extracts were determined by hplc chroma ... | 2014 | 25110715 |
| purification and characterization of an extracellular laccase from solid-state culture of pleurotus ostreatus hp-1. | a native isolate of pleurotus ostreatus hp-1 (genbank accession no. eu420068) was found to have an excellent laccase producing ability. the extracellular laccase was purified to electrophoretic homogeneity from copper sulphate induced solid-state fermentation medium by ammonium sulphate precipitation and ion-exchange chromatography. the enzyme was determined to be monomeric protein with an apparent molecular mass of 68,420 kda, and an isoelectric point (pi) of 3.5. the inductively coupled plasma ... | 2014 | 28324461 |
| differential response of oyster shell powder on enzyme profile and nutritional value of oyster mushroom pleurotus florida pf05. | oyster mushroom pleurotus florida was cultivated on different combinations of wheat straw (ws) as basal substrate and oyster shell powder (osp) supplement. the osp supplementation considerably responded to different cultivation phases. the mycelium grew fast and showed rapid growth rate (8.91 mmd(-1)) in ws + osp (97 + 3) combination while ws + osp (92 + 8) showed maximum laccase (3.133 u/g) and mn peroxidase (mnp) activities (0.091 u/g). the climax level of laccase (5.433 u/g) and mnp (0.097 u/ ... | 2014 | 25054140 |
| high removal of chemical and biochemical oxygen demand from tequila vinasses by using physicochemical and biological methods. | the goal of this research is to find a more effective treatment for tequila vinasses (tvs) with potential industrial application in order to comply with the mexican environmental regulations. tvs are characterized by their high content of solids, high values of biochemical oxygen demand (bods), chemical oxygen demand (cod), low ph and intense colour; thus, disposal of untreated tvs severely impacts the environment. physicochemical and biological treatments, and a combination of both, were probed ... | 2014 | 24956770 |
| ligninolytic peroxidase gene expression by pleurotus ostreatus: differential regulation in lignocellulose medium and effect of temperature and ph. | pleurotus ostreatus is an important edible mushroom and a model lignin degrading organism, whose genome contains nine genes of ligninolytic peroxidases, characteristic of white-rot fungi. these genes encode six manganese peroxidase (mnp) and three versatile peroxidase (vp) isoenzymes. using liquid chromatography coupled to tandem mass spectrometry, secretion of four of these peroxidase isoenzymes (vp1, vp2, mnp2 and mnp6) was confirmed when p. ostreatus grows in a lignocellulose medium at 25°c ( ... | 2014 | 24560615 |
| the perforin pore facilitates the delivery of cationic cargos. | cytotoxic lymphocytes eliminate virally infected or neoplastic cells through the action of cytotoxic proteases (granzymes). the pore-forming protein perforin is essential for delivery of granzymes into the cytoplasm of target cells; however the mechanism of this delivery is incompletely understood. perforin contains a membrane attack complex/perforin (macpf) domain and oligomerizes to form an aqueous pore in the plasma membrane; therefore the simplest (and best supported) model suggests that gra ... | 2014 | 24558045 |
| determination of anti-inflammatory activities of standardised preparations of plant- and mushroom-based foods. | chronic inflammatory processes contribute to the pathogenesis of many age-related diseases. in search of anti-inflammatory foods, we have systematically screened a variety of common dietary plants and mushrooms for their anti-inflammatory activity. | 2014 | 23653285 |
| mycoremediation of benzo[a]pyrene by pleurotus ostreatus in the presence of heavy metals and mediators. | benzo[a]pyrene is considered as a priority pollutant because of its carcinogenic, teratogenic and mutagenic effects. the highly recalcitrant nature of benzo[a]pyrene poses a major problem for its degradation. white-rot fungi such as pleurotus ostreatus can degrade benzo[a]pyrene by enzymes like laccase and manganese peroxidase. the present investigation was carried out to determine the extent of benzo[a]pyrene degradation by the po-3, a native isolate of p. ostreatus, in the presence of heavy me ... | 2014 | 28324451 |
| engineering a fungal peroxidase that degrades lignin at very acidic ph. | ligninolytic peroxidases are divided into three families: manganese peroxidases (mnps), lignin peroxidases (lips), and versatile peroxidases (vps). the latter two are able to degrade intact lignins, as shown using nonphenolic lignin model compounds, with vp oxidizing the widest range of recalcitrant substrates. one of the main limiting issues for the use of these two enzymes in lignocellulose biorefineries (for delignification and production of cellulose-based products or modification of industr ... | 2014 | 25788979 |
| cloning, expression, and characterization of a milk-clotting aspartic protease gene (po-asp) from pleurotus ostreatus. | an aspartic protease gene from pleurotus ostreatus (po-asp) had been cloned based on the 3' portion of cdna in our previous work. the po-asp cdna contained 1,324 nucleotides with an open reading frame (orf) of 1,212 bp encoding 403 amino acid residues. the putative amino acid sequence included a signal peptide, an activation peptide, two most possible n-glycosylation sites and two conserved catalytic active site. the mature polypeptide with 327 amino acid residues had a calculated molecular mass ... | 2014 | 24338250 |
| dynamics of sterols and fatty acids during uv-b treatment of oyster mushroom. | fruiting bodies of the oyster mushroom pleurotus ostreatus were illuminated with uv-b with a light intensity maximum at 310-320 nm and 11.5 w/m² for 60 min at 20 °c. changes of the sterol and fatty acid spectrum were quantified. the onset of ergocalciferol (vitamin d₂) formation was immediate in fruiting bodies illuminated from the lamella side, in sliced fruiting bodies, and in the stipes. saturation concentrations above 100 μg/g of dry matter were reached after 1h. at the same time, the concen ... | 2014 | 24295670 |
| hydrophobin-coated plates as matrix-assisted laser desorption/ionization sample support for peptide/protein analysis. | fungal hydrophobins are amphipathic self-assembling proteins. vmh2 hydrophobin, prepared from mycelial cultures of the basidiomycete fungus pleurotus ostreatus, spontaneously forms a stable and homogeneous layer on solid surfaces and is able to strongly absorb proteins even in their active forms. in this work, we have exploited the vmh2 self-assembled layer as a novel coating of a matrix-assisted laser desorption/ionization (maldi) steel sample-loading plate. mixtures of standard proteins, as we ... | 2014 | 24287080 |
| polluting macrophytes colombian lake fúquene used as substrate by edible fungus pleurotus ostreatus. | invasive aquatic plants from lake fúquene (cundinamarca, colombia), water hyacinth (eichhornia crassipes c. mart.) and brazilian elodea (egeria densa planch.) have been removed mechanically from the lake and can be used for edible mushrooms production. the growth of the oyster mushroom (pleurotus ostreatus) on these aquatic macrophytes was investigated in order to evaluate the possible use of fruiting bodies and spent biomass in food production for human and animal nutrition, respectively. treat ... | 2014 | 23900906 |
| permeability characteristics of cell-membrane pores induced by ostreolysin a/pleurotolysin b, binary pore-forming proteins from the oyster mushroom. | proteins from the oyster mushroom, 15 kda ostreolysin a (olya), and 59 kda pleurotolysin b (plyb) with a membrane attack complex/perforin (macpf) domain, damage cell membranes as a binary cytolytic pore-forming complex. measurements of single-channel conductance and transmembrane macroscopic current reveal that olya/plyb form non-selective ion-conducting pores with broad, skewed conductance distributions in n18 neuroblastoma and cho-k1 cell membranes. polyethylene-glycol 8000 (hydrodynamic radiu ... | 2014 | 24211835 |
| anti-allergic effect of pleuran (β-glucan from pleurotus ostreatus) in children with recurrent respiratory tract infections. | recurrent respiratory tract infections (rrtis) present a very important problem in paediatric praxis. as true immunodeficiencies are rare, one of the most important factors assumed to contribute to increased respiratory morbidity is atopy. several preparations of natural origin have been used for the prevention of rrtis, and some of the most effective immunomodulators are biologically active polysaccharides - e.g. ß-glucans. in our randomised, double-blind, placebo-controlled study, we investiga ... | 2014 | 23744488 |
| pleurotus ostreatus opposes mitochondrial dysfunction and oxidative stress in acetaminophen-induced hepato-renal injury. | acetaminophen (apap)-induced toxicity is a predominant cause of acute hepatic and renal failure. in both humans and rodents toxicity begins with a reactive metabolite that binds to proteins. this leads to mitochondrial dysfunction and nuclear dna fragmentation resulting in necrotic cell death. pleurotus ostreatus (an edible oyster mushroom) is well recognized as a flavourful food, as well as a medicinal supplement. in the present study, we evaluated the role of pleurotus ostreatus in the protect ... | 2014 | 25510860 |
| effect of ultraviolet-a (uv-a) and ultraviolet-c (uv-c) light on mechanical properties of oyster mushrooms during growth. | this study investigated the effects of ultraviolet-a (uv-a) and ultraviolet-c (uv-c) light on the mechanical properties in oyster mushrooms during the growth. experiments were carried out with irradiation of the mushrooms with uv-a (365 nm) and uv-c (254 nm) light during growth. the exposure time ranged from 10 minutes to 60 minutes at intervals of 10 minutes and irradiation was done for three days. the samples for experimental studies were cut into cylindrical shapes of diameter 12.50 mm and th ... | 2014 | 25580117 |
| characterization of interspecific hybrid dikaryons of the oyster mushrooms, pleurotus florida pau-5 and p. sajor-caju pau-3 (higher basidiomycetes) from india. | five pleurotus hybrid dikaryons, developed through cross-breeding of p. florida pau-5 (pf-5) and p. sajor-caju pau-3 (psc-3) were characterized with respect to textural properties, color, and enzymatic and genetic variability. texture profile revealed significant differences in springiness, resilience, cohesiveness, and chewiness between all hybrids compared to the parents. among the hybrid cultures, maximum whiteness was reported in hybrid 37, whereas hybrid 8 had minimum whiteness. three hybri ... | 2014 | 25271864 |
| fungal macpf-like proteins and aegerolysins: bi-component pore-forming proteins? | proteins with membrane-attack complex/perforin (macpf) domains are found in almost all kingdoms of life, and they have a variety of biological roles, including defence and attack, organism development, and cell adhesion and signalling. the distribution of these proteins in fungi appears to be restricted to some pezizomycotina and basidiomycota species only, in correlation with another group of proteins with unknown biological function, known as aegerolysins. these two protein groups coincide in ... | 2014 | 24798017 |
| evaluation of biomass of some invasive weed species as substrate for oyster mushroom (pleurotus spp.) cultivation. | this study assessed the bioconversion of agriculture wastes like invasive weeds species (lantana camara, prosopis juliflora, parthenium hysterophorus) as a substrate for oyster mushroom (pleurotus species) cultivation together with wheat straw as a control. the experiment was laid out in factorial combination of substrates and three edible oyster mushroom species in a completely randomized design (crd) with three replications. pleurotus ostreatus gave significantly (p < 0.01) total yield of 840 ... | 2014 | 24783804 |
| isolation, culture optimization and physico-chemical characterization of laccase enzyme from pleurotus fossulatus. | pleurotus fossulatus (cooke) sace is member of oyster mushroom can produced extracellular laccase (benzenediol: oxygen oxidoreductase; ec 1.10.3.2) in submerged fermentation. to analyze the optimum production for laccase p. fossulatus was cultured both in stationary and shaking condition in different media. partial purification of laccase was done after 0-80% ammonium sulphate precipitation, followed by deae (diethylaminoethyl) sephadex (a-50) anion exchange chromatography. potato-sucrose pepton ... | 2014 | 24783799 |
| antitumor activity of pleurotus ostreatus polysaccharide fractions on ehrlich tumor and sarcoma 180. | the medicinal properties of fungi of the genus pleurotus have attracted great interest due to their therapeutic properties. polysaccharides synthesized by pleurotus, including the β-glucans are considered the main responsible for its therapeutic properties. this study aimed to evaluate the efficacy of polysaccharidic fractions extracted from mycelial biomass of pleurotus ostreatus dsm 1833 in inhibiting the development of ehrlich tumor (et) and sarcoma 180 (s-180). fc, fi and fii fractions provi ... | 2014 | 24768967 |
| ligninolytic peroxidase genes in the oyster mushroom genome: heterologous expression, molecular structure, catalytic and stability properties, and lignin-degrading ability. | the genome of pleurotus ostreatus, an important edible mushroom and a model ligninolytic organism of interest in lignocellulose biorefineries due to its ability to delignify agricultural wastes, was sequenced with the purpose of identifying and characterizing the enzymes responsible for lignin degradation. | 2014 | 24387130 |
| decontamination of a municipal landfill leachate from endocrine disruptors using a combined sorption/bioremoval approach. | sorption and biodegradation are the main mechanisms for the removal of endocrine disruptor compounds (eds) from both solid and liquid matrices. there are recent evidences about the capacity of white-rot fungi to decontaminate water systems from phenolic eds by means of their ligninolytic enzymes. most of the available studies report the removal of eds by biodegradation or adsorption separately. this study assessed the simultaneous removal of five eds—the xenoestrogens bisphenol a (bpa), ethynile ... | 2014 | 24122163 |
| toward an understanding of the effects of agitation and aeration on growth and laccases production by pleurotus ostreatus. | mycelial growth and laccase production by pleurotus ostreatus cp50 cultured in a 10-l mechanically agitated bioreactor were assessed through a 2(3) factorial experimental design. the main effects and interactions of three factors (agitation, aeration and copper induction) over five responses (μ, αlacc, βlacc, maximal volumetric laccase activity and maximal biomass concentration) were analyzed. p. ostreatus growth was significantly improved when culturing was conducted with high agitation (5.9kw/ ... | 2014 | 24572371 |
| evaluation of the efficacy of fermented by-product of mushroom, pleurotus ostreatus, as a fish meal replacer in juvenile amur catfish, silurus asotus: effects on growth, serological characteristics and immune responses. | the present experiment was conducted to evaluate the efficacy of dietary fermented by-product of mushroom, pleurotus ostreatus, (fbpm) as a fish meal (fm) replacer in juvenile amur catfish, silurus asotus. a total number of 225 fish averaging 5.7±0.1 g (mean±standard deviation) were fed one of the five experimental diets formulated to replace fm with fbpm at 0%, 5%, 10%, 20%, and 30% (fbpm0, fbpm5, fbpm10, fbpm20, and fbpm30, respectively). at the end of eight weeks of the experiment, average we ... | 2014 | 25178300 |
| x-ray crystallographic structure of rnase po1 that exhibits anti-tumor activity. | rnase po1 is a guanylic acid-specific ribonuclease member of the rnase t1 family from pleurotus ostreatus. we previously reported that rnase po1 inhibits the proliferation of human tumor cells, yet rnase t1 and other t1 family rnases are non-toxic. we determined the three-dimensional x-ray structure of rnase po1 and compared it with that of rnase t1. the catalytic sites are conserved. however, there are three disulfide bonds, one more than in rnase t1. one of the additional disulfide bond is in ... | 2014 | 24882409 |
| comparative evaluation of polysaccharides isolated from astragalus, oyster mushroom, and yacon as inhibitors of α-glucosidase. | the incidence of diabetes has increased considerably, and become the third serious chronic disease following cancer and cardiovascular diseases. though acarbose, metformin, and 1-deoxynojirimycin have good efficacy for clinical application as hypoglycemic drugs, their expensive costs and some degree of side effects have limited their clinical application. recently, increasing attention has concentrated on the polysaccharides from natural plant and animal sources for diabetes. in order to illustr ... | 2014 | 24863354 |
| biodegradation of heptachlor and heptachlor epoxide-contaminated soils by white-rot fungal inocula. | the ability of certain white-rot fungi (wrf) inocula to transform heptachlor and heptachlor epoxide and its application in artificially contaminated soil were investigated. fungal inoculum of pleurotus ostreatus eliminated approximately 89 % of heptachlor after 28 days of incubation, and chlordene was detected as the primary metabolite. the fungal inoculum of pleurotus ostreatus had the highest ability to degrade heptachlor epoxide; approximately 32 % were degraded after 28 days of incubation, a ... | 2014 | 24840358 |
| determination of statins by gas chromatography - ei/mrm - tandem mass spectrometry: fermentation of pine samples with pleurotus ostreatus. | statins were separated and quantified with gas chromatography-mass spectrometry (gc-ei-ms/ms) using total ion monitoring (tic) and multiple reactions monitoring (mrm). the mrm method in statins determination has a novelty value, since there are no previous studies on their simultaneous analysis in environmental or plant samples. the method development and optimization was challenging due to the physicochemical similarities of the silylated lovastatin, simvastatin, pravastatin, fluvastatin, and a ... | 2014 | 24607418 |
| molecular divergence and species delimitation of the cultivated oyster mushrooms: integration of igs1 and its. | identification of edible mushrooms particularly pleurotus genus has been restricted due to various obstacles. the present study attempted to use the combination of two variable regions of igs1 and its for classifying the economically cultivated pleurotus species. integration of the two regions proved a high ability that not only could clearly distinguish the species but also served sufficient intraspecies variation. phylogenetic tree (igs1+its) showed seven distinct clades, each clade belonging ... | 2014 | 24587752 |
| effects of uv-b radiation levels on concentrations of phytosterols, ergothioneine, and polyphenolic compounds in mushroom powders used as dietary supplements. | compositional changes of powder dietary supplements made from mushrooms exposed to different levels of uv-b irradiation were evaluated for the bioactive naturally occurring mushroom antioxidant, ergothioneine; other natural polyphenolic compounds, e.g., flavonoids, lignans, etc.; and selected phytosterols. four types of mushroom powder consisting of white, brown (agaricus bisporus), oyster (pleurotus ostreatus), and shiitake (lentinula edodes) mushrooms from three different treatment groups (con ... | 2014 | 24628700 |
| biosorption of malachite green from aqueous solutions by pleurotus ostreatus using taguchi method. | dyes released into the environment have been posing a serious threat to natural ecosystems and aquatic life due to presence of heat, light, chemical and other exposures stable. in this study, the pleurotus ostreatus (a macro-fungus) was used as a new biosorbent to study the biosorption of hazardous malachite green (mg) from aqueous solutions. the effective disposal of p. ostreatus is a meaningful work for environmental protection and maximum utilization of agricultural residues.the operational p ... | 2014 | 24620852 |
| co-pyrolysis behaviour and kinetic of two typical solid wastes in china and characterisation of activated carbon prepared from pyrolytic char. | this is the first study on the co-pyrolysis of spent substrate of pleurotus ostreatus and coal tar pitch, and the activated carbon prepared from the pyrolytic char. thermogravimetry (tg) analysis was carried out taking spent substrate, coal tar pitch and spent substrate-coal tar pitch mixture. the activation energies of pyrolysis reactions were obtained via the flynn-wall-ozawa and kissinger-akahira-sunose methods. the kinetic models were determined by the master-plots method. the activated carb ... | 2014 | 25378256 |
| mutagenesis of the novel hericium erinaceus ribonuclease, rnase he1, reveals critical responsible residues for enzyme stability and activity. | here, we determined the sequence of a cdna encoding a guanylic acid-specific ribonuclease (rnase he1) from hericium erinaceus that exhibits high sequence identity (59%) with rnase po1, an enzyme with anti-cancer activity and which is found in pleurotus ostreatus. rnase he1 and rnase po1 have similar structures and heat stabilities; hence, rnase he1 may also have potential as an anti-cancer agent. therefore, we initiated structure-function studies to further characterize the enzyme. based on the ... | 2014 | 25366489 |
| highly expressed captured genes and cross-kingdom domains present in helitrons create novel diversity in pleurotus ostreatus and other fungi. | helitrons are class-ii eukaryotic transposons that transpose via a rolling circle mechanism. due to their ability to capture and mobilize gene fragments, they play an important role in the evolution of their host genomes. we have used a bioinformatics approach for the identification of helitrons in two pleurotus ostreatus genomes using de novo detection and homology-based searching. we have analyzed the presence of helitron-captured genes as well as the expansion of helitron-specific helicases i ... | 2014 | 25480150 |
| water-soluble polysaccharides from pleurotus ostreatus var. florida mycelial biomass. | pleurotus ostreatus var. florida known as hiratake has a high nutritional value, presents medicinal and nutraceutical properties and it is one of the consumed mushrooms in brazil. thus, the aim of this study was to characterize the chemical structure of polysaccharides found in mycelial biomass produced by submerged culture of p. ostreatus var. florida in order to compare with those found in p. ostreatus var. florida fruit bodies. aqueous and alkali extracts obtained from mycelial biomass were p ... | 2014 | 25008131 |
| potential of pleurotus ostreatus mycelium for selenium absorption. | the aim of this study was to evaluate the effect of high selenium (se) concentrations on morphophysiological and ultrastructural properties of pleurotus ostreatus. mycelium growth was good in media enriched with 5.0, 10.0, and 20.0 mg l(-1) of se, concentration of 500.0 mg l(-1) strongly inhibited growth, and 1000.0 mg l(-1) was the minimum inhibitory concentration. contrary to thin-walled, hyaline, branched, and anastomized hyphae with clamp-connections in the control, at se concentrations of 1 ... | 2014 | 25003145 |
| profile of natural redox mediators production of laccase-producing fungus pleurotus ostreatus. | polycyclic aromatic hydrocarbons (pahs) are highly toxic organic pollutants which are abundant and environmentally widespread. anthracene is a simple pah that can be oxidized by laccases, copper-containing oxidase enzymes, produced by some plants, fungi, and bacteria. in this work, the extracellular culture fluid (cf) of laccase-producing fungus pleurotus ostreatus was separated to crude laccase (cl) and aqueous ultrafiltrate (au) fractions. the rate of anthracene oxidation by cf was 68.7 % whil ... | 2014 | 25108623 |
| overproduction of laccase by the white-rot fungus pleurotus ostreatus using apple pomace as inducer. | laccase activity of pleurotus ostreatus is significantly increased by the addition of apple pomace. among various conditions, the best concentration of apple pomace and cultivation time for the production of laccase by p. ostreatus was 2.5% and 9 days, respectively. reverse transcription polymerase chain reaction analyses of laccase isoenzyme genes, including pox1, pox3, pox4, poxc, poxa3, and poxa1b, revealed a clear effect of apple pomace on transcription induction. our findings reveal that th ... | 2014 | 25071391 |
| high-level expression of a manganese superoxide dismutase (pomn-sod) from pleurotus ostreatus in pichia pastoris. | the full-length cdna of pleurotus ostreatus superoxide dismutase (pomn-sod) was cloned and successfully expressed by using the ppic9k vector under the control of alcohol oxidase 1 promoter with a secretion signal peptide (α-factor) in pichia pastoris. sodium dodecyl sulfate-polyacrylamide gel electrophoresis (sds-page) and western blotting demonstrated that recombinant pomn-sod, a 21.8 kda protein, was secreted into the culture medium. nondenaturing page experiments confirmed that recombinant po ... | 2014 | 25059984 |
| characterization of an anti-gout xanthine oxidase inhibitor from pleurotus ostreatus. | we selected pleurotus ostreatus from among several edible mushrooms because it has high anti-gout xanthine oxidase (xod) inhibitory activity. the maximal amount of xod inhibitor was extracted when the pleurotus ostreatus fruiting body was treated with distilled water at 40℃ for 48 hr. the xod inhibitor thus obtained was purified by sephadex g-50 gel permeation chromatography, ultrafiltration, c18 solid phase extraction chromatography and reverse-phase high-performance liquid chromatography with ... | 2014 | 25346610 |
| biodegradation of wheat straw by pleurotus ostreatus. | wheat straw pretreated with chemicals as well as hot water was subjected to degradation by edible mushroom pleurotus ostreatus. lignin, cellulose and hemicelluloses component of both chemically as well as hot water treated wheat straw was degraded by the fungus and in turn the edible and nutritious fruiting body of the mushroom was produced. biodegradation of wheat straw in terms of loss of lignin, cellulose and hemicellulose showed positive correlation with cellulases, xylanase, laccase and pol ... | 2014 | 25535709 |
| bioremediation of vegetable and agrowastes by pleurotus ostreatus: a novel strategy to produce edible mushroom with enhanced yield and nutrition. | pleurotus ostreatus was grown on paddy straw as well as other vegetable and agricultural wastes i.e. pea pod shell, cauliflower leaves, radish leaves and brassica straw in various combinations with paddy straw. the mushroom did not grow on the vegetable wastes separately. the cumulative yield and biological efficiency of the edible oyster mushroom p. ostreatus grown on substrate containing paddy straw in various combinations with different vegetable wastes i.e. 20% and 30 % vegetable wastes mixe ... | 2014 | 25535705 |
| a-wings: an integrated genome database for pleurocybella porrigens (angel's wing oyster mushroom, sugihiratake). | the angel's wing oyster mushroom (pleurocybella porrigens, sugihiratake) is a well-known delicacy. however, its potential risk in acute encephalopathy was recently revealed by a food poisoning incident. to disclose the genes underlying the accident and provide mechanistic insight, we seek to develop an information infrastructure containing omics data. in our previous work, we sequenced the genome and transcriptome using next-generation sequencing techniques. the next step in achieving our goal i ... | 2014 | 25465051 |
| cultivation of oyster mushroom pleurotus ostreatus on date-palm leaves mixed with other agro-wastes in saudi arabia. | promoting the use of agricultural waste is one of the newly prepared water and environment friendly agriculture strategies in the kingdom of saudi arabia (ksa). the objective of this research was to study the efficiency of cultivating oyster mushroom (pleurotus ostreatus) on date palm wastes mixed with other agricultural wastes available in ksa. four agricultural wastes were mixed with date palm leaves at different ratios, with two supplements and three spawn rates were used. wheat straw mixed w ... | 2014 | 25473372 |
| efficient recovery of lignocellulolytic enzymes of spent mushroom compost from oyster mushrooms, pleurotus spp., and potential use in dye decolorization. | this study was conducted in order to perform efficient extraction of lignocellulolytic enzymes amylase (ec 3.2.1.1), cellulase (ec 3.2.1.4), laccase (ec 1.10.3.2), and xylanase (ec 3.2.1.8) from spent mushroom compost (smc) of pleurotus ostreatus, p. eryngii, and p. cornucopiae. optimal enzyme recovery was achieved when smcs were extracted with 50 mm sodium citrate (ph 4.5) buffer at 4℃ for 2 hr. amylase, cellulase, and xylanase activities showed high values in extracts from p. ostreatus smc, wi ... | 2013 | 24493942 |
| effect of fungal treatments of fibrous agricultural by-products on chemical composition and in vitro rumen fermentation and methane production. | maize stover, rice straw, oil palm fronds and sugarcane bagasse were treated with the white-rot fungi ceriporiopsis subvermispora, lentinula edodes, pleurotus eryngii, or pleurotus ostreatus at 24 °c for 0-6 weeks. the fungi increased total gas production from oil palm fronds by 68-132%, but none of the fungi improved the in vitro rumen fermentability of maize stover. c. subvermispora and l. edodes increased total gas production of sugarcane bagasse by 65-71%, but p. eryngii and p. ostreatus dec ... | 2013 | 23261998 |
| pilot study of bioaccumulation and distribution of cesium, potassium, sodium and calcium in king oyster mushroom (pleurotus eryngii) grown under controlled conditions. | this pilot study presents preliminary results on interrelations between alkali and alkaline earth elements during their transfer to mycelium and fruitbodies of saprophytic fungi. the accumulation and distribution of four elements (cesium, potassium, sodium, and calcium) was evaluated in king oyster mushroom (pleurotus eryngii) cultivated under controlled conditions. elemental composition of caps, stipes, and the substrate was analyzed by atomic absorption/emission spectroscopy to evaluate discri ... | 2013 | 19260229 |
| effect of light and atmosphere on the cultivation of the golden oyster culinary-medicinal mushroom, pleurotus citrinopileatus (higher basidiomycetes). | with an aim to explore the productivity and quality of the fruiting body of culinary-medicinal golden oyster mushroom pleurotus citrinopileatus, the carbon dioxide (co₂) concentration of the ambient atmosphere was adjusted and a light-emitting diode panel was used to illuminate the colonized mycelium at different wavelengths. biological efficiency and yield were higher at co₂ levels of 0.05 and 0.1% than other tested co₂ levels, and the mature fruiting body showed the highest yellow value at a c ... | 2013 | 23510289 |
| ligninolytic activity patterns of pleurotus ostreatus obtained by submerged fermentation in presence of 2,6-dimethoxyphenol and remazol brilliant blue r dye. | the degradation of 2,6-dimethoxyphenol (dmp) and decolorization of remazol brilliant blue r dye (rbb), added to culture media of pleurotus ostreatus developed in submerged fermentation, and the laccase, manganese peroxidase and veratryl alcohol oxidase activities produced in these systems were evaluated. both compounds were removed from the culture medium mainly by enzymatic action. these compounds decreased the specific growth rate and the effect on the maximal biomass values was not important. ... | 2013 | 23581782 |
| selenium bioaccessibility and speciation in biofortified pleurotus mushrooms grown on selenium-rich agricultural residues. | cultivation of saprophytic fungi on selenium-rich substrates can be an effective means to produce selenium-fortified food. pleurotus florida, an edible species of oyster mushrooms, was grown on wheat straw from the seleniferous belt of punjab (india) and its potential to mobilize and accumulate selenium from the growth substrate was studied. selenium concentration in biofortified mushrooms was 800 times higher compared with control samples grown on wheat straw from non selenium-rich areas (141 v ... | 2013 | 23578637 |
| degradation of oxo-biodegradable plastic by pleurotus ostreatus. | growing concerns regarding the impact of the accumulation of plastic waste over several decades on the environmental have led to the development of biodegradable plastic. these plastics can be degraded by microorganisms and absorbed by the environment and are therefore gaining public support as a possible alternative to petroleum-derived plastics. among the developed biodegradable plastics, oxo-biodegradable polymers have been used to produce plastic bags. exposure of this waste plastic to ultra ... | 2013 | 23967057 |
| the white-rot fungus pleurotus ostreatus transformant overproduced intracellular camp and laccase. | transformation of pleurotus ostreatus pc9 with the mutated heterotrimeric g protein alpha subunit (gα) gene resulted in higher laccase (lac) activity and intracellular cyclic adenosine monophosphate (camp) concentrations as compared to those in wild-type pc9. the transformant also exhibited higher lac activity than the wild type when cultured in a medium containing known lac inducers cuso4 and ferulic acid. | 2013 | 24200784 |
| characterization of pleurotus ostreatus biofilms by using the calgary biofilm device. | the adequacy of the calgary biofilm device, often referred to as the mbec system, as a high-throughput approach to the production and subsequent characterization of pleurotus ostreatus biofilms was assessed. the hydroxyapatite-coating of pegs was necessary to enable biofilm attachment, and the standardization of vegetative inocula ensured a uniform distribution of p. ostreatus biofilms, which is necessary for high-throughput evaluations of several antimicrobials and exposure conditions. scanning ... | 2013 | 23892744 |
| [morphology and structural peculiarities of basidiomycetes pathogens]. | the materials of studies of morphology and structural peculiarities of viruses, fungi and bacteria, which affect basidiomycetes under biotechnology process and nature biocenosis conditions are given. the analysis of infection development in button mushroom (agaricus bisporus) (j.lge) imbach and in oyster mushroom (pleurotus ostreatus kumm.), which served as model objects in the experiments of various levels of complexity has been carried out. other kinds of edible and medicinal mushrooms, which ... | 2013 | 23866587 |