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toxigenic fungi in food.forty-five fungal isolates from moldy supermarket foods were tested for toxicity to brine shrimp, and twenty-two of these isolates were subsequently tested for toxicity to chicken embryos. highly toxigenic fungi were cladosporium sphaerospermum from a bakery product, fusarium oxysporum from carrots, f. solani from cabbage, aspergillus niger and penicillium corylophilum from bread, p. cyclopium and p. herguei from corn meal, p. lanosum from onions,p. steckii from chocolate syrup, penicillium sp. ...19751147614
secondary metabolites by chemical screening. 8. decarestrictines, a new family of inhibitors of cholesterol biosynthesis from penicillium. i. strain description, fermentation, isolation and properties.a family of new 10-membered lactones was detected by chemical screening. taxonomic studies and fermentation conditions of the producing organisms, which belong to the species penicillium simplicissimum and penicillium corylophilum, are presented. the isolation as well as physico-chemical data of the new compounds named decarestrictines a to d are reported. in vitro testing using the hep-g2 cell assay showed the decarestrictines to be inhibitors of cholesterol biosynthesis, which could be confirm ...19921548190
survey of the mycoflora and mycotoxins of cotton seeds and cotton seed products in egypt.thirty-nine species and 16 fungal genera were isolated from egyptian cotton seeds, cotton seed meal and cotton seed cake on 1% glucose-czapek's agar medium incubated at 28 degrees c. aspergillus was the most frequent genus and it emerged in 87-100% of the samples contributing 70-98% of total fungi in the three substrates tested. the most common species were a. niger, a. flavus, a. fumigatus, a. terreus and rhizopus stolonifer; a. niger, a. fumigatus and penicillium corylophilum; and a. niger, a. ...19902388680
temperature and water activity minima for growth of spoilage moulds from meat.five species of fungi were isolated from mould spoilage on meat other than black spot. 'white spot' colonies yielded chrysosporium pannorum or an acremonium sp.; 'whiskers' colonies yielded thamnidium elegans or mucor racemosus, and blue-green colonies yielded penicillium corylophilum . chrysosporium pannorum was moderately xerotolerant with a minimum growth temperature of -5 degrees c. the acremonium sp. and p. corylophilum showed a similar level of xerotolerance but had a minimum growth temper ...19846725157
determining the kinetic behaviour for the secretion of milk toxin as related to dosage level of aflatoxin b1.39 species which belong to 14 genera were isolated from 110 milk samples collected from different dairy sources at assiut city. the most frequent fungi were a. niger, a flavus and clasdosporium cladosporioides, followed by curvularia spicifera and penicillium corylophilum. the remaining species were of rare occurrence. the fluorescence-method for detecting aflatoxin-producing strains demonstrated the presence of two isolates namely a. flavus possesses this property. one of these toxic isolates w ...19816794233
aflatoxin and aflatoxicosis. i. fungal flora of some food and animal feeds with special references to aflatoxin-producing abilities.a wide range of fungi, amounting to fifty-six species belonging to twenty-two genera, have been recovered from animal feeds and foodstuffs. the most frequent fungi were aspergillus niger, and a. flavus, followed by mucor racemosus, alternaria alternata. rhizopus stolonifer, penicillium corylophilum and p. notatum. three genera were found to be of moderate occurrence, namely, mucor, rhizopus and alternaria. the three following genera were of low occurrence: cladosporium, fusarium, and neurospora. ...19827070483
purification and characterization of novel antifungal compounds from the sourdough lactobacillus plantarum strain 21b.sourdough lactic acid bacteria were selected for antifungal activity by a conidial germination assay. the 10-fold-concentrated culture filtrate of lactobacillus plantarum 21b grown in wheat flour hydrolysate almost completely inhibited eurotium repens ibt18000, eurotium rubrum ftdc3228, penicillium corylophilum ibt6978, penicillium roqueforti ibt18687, penicillium expansum idm/fs2, endomyces fibuliger ibt605 and idm3812, aspergillus niger ftdc3227 and idm1, aspergillus flavus ftdc3226, monilia s ...200010966432
complete denitration of nitroglycerin by bacteria isolated from a washwater soakaway.four axenic bacterial species capable of biodegrading nitroglycerin (glycerol trinitrate [gtn]) were isolated from soil samples taken from a washwater soakaway at a disused gtn manufacturing plant. the isolates were identified by 16s rrna gene sequence homology as pseudomonas putida, an arthrobacter species, a klebsiella species, and a rhodococcus species. each of the isolates utilized gtn as its sole nitrogen source and removed nitro groups sequentially from gtn to produce glycerol dinitrates a ...200111375172
role of pencycuron in aflatoxin production and cotton seed protection.the research is conducted on the effect of pencycuron and pencycuron-c on cotton seed mycoflora, aflatoxin production and viability. at 8% seed moisture content (mc), pencycuron and pencycuron-c promoted aspergillus niger, a. flavus, and penicillium corylophilum growth count at 1 g/kg, but exerted inhibitory effect at 3 and 5 g/kg. at 15% mc, pencycuron enhanced seed-borne fungi at all three doses after most treatment periods (1, 2, 3, 4, and 5 months), whereas pencycuron-c induced inhibition ef ...200111405276
fungal flora of the digestive tract of 5 species of triatomines vectors of trypanosoma cruzi, chagas 1909.a study of the mycobiota in the digestive tract of 5 important species of triatomines, triatoma brasiliensis, t infestans, t. sordida, t. pseudomaculata and t. vitticeps, was made. the digestive tracts of 164 adults and 535 nymphs of those triatomines were studied and 393 fungal strains were isolated. the genera with the greatest number of species were penicillium (19 species), aspergillus (17 species) and acremonium (5 species) and the most frequent species, in decreasing order, were penicilliu ...200111502063
[a case of chronic hypersensitivity pneumonia with elevation of serum sp-d and kl-6].a 73-year-old woman suffering from dyspnea on effort and chronic cough was admitted to our hospital. chest computed tomography disclosed ground-glass opacities, irregular linear opacities and honeycombing distributed predominantly in the subpleural area. the serum levels of sp-d and kl-6 rose to 889 ng/ml, 1,755 u/ml, respectively. these findings indicated idiopathic pulmonary fibrosis. however, the number of lymphocytes and the cd4/cd8 ratio in the bal fluid were elevated. transbronchial lung b ...200211925922
gibberellin and auxin-indole production by plant root-fungi and their biosynthesis under salinity-calcium interaction.rhizosphere and rhizoplane of fababean (vicia faba), melochia (corchorus olitorius), sesame (sesamum indicum) and soyabean (glycine max) plants are inhabited with fungi, mostly aspergillus flavus, a. niger, fusarium oxysporum, penicillium corylophilum, p. cyclopium, p. funiculosum and rhizopus stolonifer. all fungal species have the ability to produce gibberellin (ga) but f. oxysporum was found to produce both ga and indole-acetic acid (iaa). the optimum period for ga and iaa production by f. ox ...200212073817
effect of agitation and aeration on bioconversion of domestic wastewater sludge in a batch fermenter.effects of agitation and aeration rate on microbial treatment of domestic wastewater sludge were investigated in a batch fermenter using mixed culture of penicillium corylophilum and aspergillus niger. it was found that liquid state bioconversion (lsb) of wastewater sludge was highly influenced by the effects of agitation and aeration. the maximum production of sludge cake and reduction of organic substances in treated sludge were recorded at 150-200 rpm of agitation speed and 0.5 vvm of aeratio ...200212090282
bioconversion of domestic wastewater sludge by immobilized mixed culture of penicillum corylophilum wwza1003 and aspergillus niger scahma103.the bioconversion of domestic wastewater sludge by immobilized mixed culture of filamentous fungi was investigated in a laboratory. the potential mixed culture of penicillium corylophilum wwza1003 and aspergillus niger scahma103 was isolated from its local habitats (wastewater and sludge cake) and optimized on the basis of biodegradability and dewaterability of treated sludge. the observed results in this study showed that the sludge treatment was highly influenced by the effect of immobilized m ...200212227649
potential non-phytopathogenic filamentous fungi for bioconversion of domestic wastewater sludge.ten filamentous fungi adapted to domestic wastewater sludge (dws) were further studied to evaluate their potential in terms of adaptation to higher sludge supplemented growing media and phytopathogenicity (induction of diseases to plants) to three germinating crop (corn: zea mays, mung bean: phaseolus aureus and mustard: brassica napus) seeds. the performances of the fungi in seed germination were evaluated based on percent germination index (gi) and infected/spotted seeds on direct fungal bioma ...200212369641
domestic wastewater biosolids accumulation by liquid state bioconversion process for rapid composting.bioconversion of higher strength of domestic wastewater biosolids (sludge) (4% w/w of tss) by mixed fungal culture of aspergillus niger and penicillium corylophilum was studied in a laboratory. the effect of potential mixed fungi on domestic wastewater sludge accelerated the liquid state bioconversion (lsb) process. the highest production of dry sludge cake (biosolids) was enriched with fungal biomass to about 85.66 g/kg containing 25.23 g/kg of protein after 8 days of treatment. the results pre ...200212369644
enhanced settleability and dewaterability of fungal treated domestic wastewater sludge by liquid state bioconversion process.a study was conducted to evaluate the settleability and dewaterability of fungal treated and untreated sludge using liquid state bioconversion process. the fungal mixed culture of aspergillus niger and penicillium corylophilum was used for fungal pretreatment of wastewater sludge. the fungal strains immobilized/entrapped on sludge particles with the formation of pellets and enhanced the separation process. the results presented in this study showed that the sludge particles (pellets) size of 2-5 ...200312553987
isolation of fungi in musca domestica linnaeus, 1758 (diptera: muscidae) captured at two natural breeding grounds in the municipality of serop dica, rio de janeiro, brazil.the objective of this study was to isolate and identify fungal species found in natural association with adults of musca domestica. the adult insects were collected from two natural breeding grounds: hog pens and an urban sanitary landfill. the isolated fungi were identified as: aspergillus flavus (23.8%), a. niger var. niger (14.4%), penicillium corylophilum (21.4%), p. fellutanum (11.9%), cladosporium cladosporoides (4.7%), fusarium sp. (4.7%), alternaria alternata (11.9%), curvularia brachysp ...200312563474
entomopathogenic effect of aspergillus giganteus and penicillium corylophilum on two triatomine vectors of chagas disease.two strains, penicillium corylophilum and aspergillus giganteus, of the most frequent species found in a survey of triatomines, were used for bioassays in the second and fourth nymphs stage of triatoma infestans and panstrongylus megistus. two procedures, bite and pulverization, were used and compared. a. giganteus was most effective, causing mortality in at least 50% of the nymphs of the two species tested with exception of the nymphs of the fourth stage of p. megistus. variation in entomopatho ...200312596236
antifungal activity of volatile compounds generated by essential oils against fungi commonly causing deterioration of bakery products.to investigate the volatile fractions of 16 essential oils for activity against the more common fungi causing spoilage of bakery products, eurotium amstelodami, e. herbariorum, e. repens, e. rubrum, aspergillus flavus, a. niger and penicillium corylophilum.200312694455
biosolids accumulation and biodegradation of domestic wastewater treatment plant sludge by developed liquid state bioconversion process using a batch fermenter.the biosolids accumulation and biodegradation of domestic wastewater treatment plant (dwtp) sludge by filamentous fungi have been investigated in a batch fermenter. the filamentous fungi aspergillus niger and penicillium corylophilum isolated from wastewater and dwtp sludge was used to evaluate the treatment performance. the optimized mixed inoculum (a. niger and p. corylophilum) and developed process conditions (co-substrate and its concentration, temperature, initial ph, inoculum size, and aer ...200312867323
modified atmosphere packaging for prevention of mold spoilage of bakery products with different ph and water activity levels.a sponge cake analog was used to study the influence of ph, water activity (aw), and carbon dioxide (co2) levels on the growth of seven fungal species commonly causing bakery product spoilage (eurotium amstelodami, eurotium herbariorum, eurotium repens, eurotium rubrum, aspergillus niger, aspergillus flavus, and penicillium corylophilum). a full factorial design was used. water activity, co2, and their interaction were the main factors significantly affecting fungal growth. water activity at lev ...200314572225
early detection of fungal growth in bakery products by use of an electronic nose based on mass spectrometry.this paper presents the design, optimization, and evaluation of a mass spectrometry-based electronic nose (ms e-nose) for early detection of unwanted fungal growth in bakery products. seven fungal species (aspergillus flavus, aspergillus niger, eurotium amstelodami, eurotium herbariorum, eurotium rubrum, eurotium repens, and penicillium corylophillum) were isolated from bakery products and used for the study. two sampling headspace techniques were tested: static headspace (sh) and solid-phase mi ...200415453668
antibacterial activity from penicillium corylophilum dierckx.a strain of penicillium corylophilum isolated from brazilian soil sample was submitted to different culture conditions to investigate the production of secondary metabolites with antimicrobial activity. the largest number of conidia was obtained after 5 days of incubation in oat medium and the highest level of antimicrobial activity was produced when the fungus culture was developed in the czapek medium. the activity against staphylococcus aureus was found only in the chloroform extract from cza ...200415646377
[evaluation of cellular response in engorged females of boophilus microplus (canestrini, 1887) inoculated with metarhizium anisopliae, beauveria bassiana, penicillium corylophilum or fusarium oxysporum].the effect of beauveria bassiana, metarhizium anisopliae, penicillium corylophilum or fusarium oxysporum on the dynamic of hemocytes presented in the haemolymph of engorged females of boophilus microplus was studied. the inoculation was carried out with conidia suspension of different fungi in the concentration of 10(8) conidia/ml. a negative control group was inoculated with 0.1% tween 80 water solution and a testimony group was comprised of non inoculated ticks. the haemolymph samples were col ...200617196118
use of a ms-electronic nose for prediction of early fungal spoilage of bakery products.a ms-based electronic nose was used to detect fungal spoilage (measured as ergosterol concentration) in samples of bakery products. bakery products were inoculated with different eurotium, aspergillus and penicillium species, incubated in sealed vials and their headspace sampled after 2, 4 and 7 days. once the headspace was sampled, ergosterol content was determined in each sample. different electronic nose signals were recorded depending on incubation time. both the e-nose signals and ergostero ...200717207549
quantifying the effect of water activity and storage temperature on single spore lag times of three moulds isolated from spoiled bakery products.the inhibitory effect of water activity (aw) and storage temperature on single spore lag times of aspergillus niger, eurotium repens (aspergillus pseudoglaucus) and penicillium corylophilum strains isolated from spoiled bakery products, was quantified. a full factorial design was set up for each strain. data were collected at levels of aw varying from 0.80 to 0.98 and temperature from 15 to 35°c. experiments were performed on malt agar, at ph5.5. when growth was observed, ca 20 individual growth ...201727325576
optimization of process parameters for pilot-scale liquid-state bioconversion of sewage sludge by mixed fungal inoculation.liquid-state bioconversion (lsb) technique has great potential for application in bioremediation of sewage sludge. the purpose of this study is to determine the optimum level of lsb process of sewage sludge treatment by mixed fungal (aspergillus niger and penicillium corylophilum) inoculation in a pilot-scale bioreactor. the optimization of process factors was investigated using response surface methodology based on box-behnken design considering hydraulic retention time (hrt) and substrate infl ...201626111620
quantifying effect of lactic, acetic, and propionic acids on growth of molds isolated from spoiled bakery products.the combined effect of undissociated lactic acid (0 to 180 mmol/liter), acetic acid (0 to 60 mmol/liter), and propionic acid (0 to 12 mmol/liter) on growth of the molds aspergillus niger, penicillium corylophilum, and eurotium repens was quantified at ph 3.8 and 25°c on malt extract agar acid medium. the impact of these acids on lag time for growth (λ) was quantified through a gamma model based on the mic. the impact of these acids on radial growth rate (μ) was analyzed statistically through pol ...201526319723
identification and quantification of antifungal compounds produced by lactic acid bacteria and propionibacteria.fungal growth in bakery products represents the most frequent cause of spoilage and leads to economic losses for industrials and consumers. bacteria, such as lactic acid bacteria and propionibacteria, are commonly known to play an active role in preservation of fermented food, producing a large range of antifungal metabolites. in a previous study (le lay et al., 2016), an extensive screening performed both in vitro and in situ allowed for the selection of bacteria exhibiting an antifungal activi ...201627350657
inhibitory effects of gossypol, gossypolone, and apogossypolone on a collection of economically important filamentous fungi.racemic gossypol and its related derivatives gossypolone and apogossypolone demonstrated significant growth inhibition against a diverse collection of filamentous fungi that included aspergillus flavus, aspergillus parasiticus, aspergillus alliaceus, aspergillus fumigatus, fusarium graminearum, fusarium moniliforme, penicillium chrysogenum, penicillium corylophilum, and stachybotrys atra. the compounds were tested in a czapek agar medium at a concentration of 100 μg/ml. racemic gossypol and apog ...201222324794
identification of fungal dna in balf from patients with home-related hypersensitivity pneumonitis.background: in japan, a major type of home-related hypersensitivity pneumonitis (hp) is summer-type hp, which is caused by trichosporon asahii (t. asahii) or trichosporonmucoides. some patients with home-related hp test negative for antibodies against trichosporon; yet, a causative mold antigen cannot be identified. methods: we analyzed 19 patients with home-related hp, 8 healthy volunteers, and 35 patients with other diseases. we extracted dna from cell pellets of bronchoalveolar lavage fluid ( ...201121824758
inactivation of food spoilage fungi by ultra violet (uvc) irradiation.the effect of ultraviolet irradiation (254 nm, uvc) on aspergillus flavus, aspergillus niger, penicillium corylophilum and eurotium rubrum was investigated using three different exposure techniques. survival was determined for spores suspended in liquid medium after 1, 2 and 3 min uvc exposure at 4644 j/m(2)/min. the same uvc dose was applied to spores on the surface of agar plates for 5, 10, 15, 30, 60 and 120 s. spores of a. niger were dried onto a membrane filter, then exposed to uvc treatmen ...200919059664
dioxiranes generated in situ from pyruvates and oxone as environmentally friendly oxidizing agents for disinfection.dioxiranes generated in situ from pyruvates (alpha-keto esters) and oxone have been found to be environmentally friendly oxidizing agents for disinfection. these oxidizing agents were highly effective for destruction of various strains of bacteria, fungi, and bacterial endospores in a wide temperature range with exceptional stability. notably, by using an aqueous solution of methyl pyruvate (1a) and oxone/nahco3, complete destruction of bacteria such as staphylococcus aureus and fungus penicilli ...200616468412
use of fungi to improve bioconversion of activated sludge.the present study was designed to evaluate the potential of microbial adaptation and its affinity to biodegradation as well as bioconversion of soluble/insoluble (organic) substances of domestic wastewater treatment plant (dwtp) sludge (activated domestic sludge) under natural/non-sterilized conditions. the two filamentous fungi, penicillium corylophilum (wwzp1003) and aspergillus niger (scahma103) were used to achieve the objectives. it was observed that p. corylophilum (wwzp1003) was the bette ...200516000208
an attempt to optimize potassium sorbate use to preserve low ph (4.5-5.5) intermediate moisture bakery products by modelling eurotium spp., aspergillus spp. and penicillium corylophilum growth.mould growth was modelled on fermented bakery product analogues (fbpa) of two different ph (4.5 and 5.5), different water activity (a(w)) levels (0.80-0.90) and potassium sorbate concentrations (0-0.3%) by using seven moulds commonly causing spoilage of bakery products (eurotium spp., aspergillus spp. and penicillium corylophilum). for the description of fungal growth (growth rates) as a function of a(w), potassium sorbate concentration and ph, 10-terms polynomial models were developed. modellin ...200415862879
study of benzoate, propionate, and sorbate salts as mould spoilage inhibitors on intermediate moisture bakery products of low ph (4.5-5.5).a hurdle technology approach has been applied to control common mold species causing spoilage of intermediate moisture bakery products (eurotium spp., aspergillus spp., and penicillium corylophilum), growing on a fermented bakery product analogue (fbpa). the factors studied included a combination of different levels of weak acid preservatives (potassium sorbate, calcium propionate, and sodium benzoate; 0-0.3%), ph (4.5-5.5), and water activity (a(w); 0.80-0.90). potassium sorbate was found to be ...200415862878
liquid state bioconversion of sewage treatment plant sludge in batch fermenter and shake flask.a study on liquid state bioconversion of sewage treatment plant (stp) sludge was assisted to evaluate the performance of batch fermenter compared to shake flask in a laboratory. bioconversion of stp sludge was highly influenced by the mixed fungal culture of penicillium corylophilum and aspergillus niger after 4 days of treatment. the results showed that about 24.9 g kg(-1) dry sludge cake (dsc) was produced with enrichment of fungal biomass protein in fermenter while 20.1 g kg(-1) in shake flas ...200415508283
comparative analysis of the composition and active property evaluation of certain essential oils to assess their potential applications in active food packaging.the antifungal, antibacterial, and antioxidant activity of four commercial essential oils (eos) (thyme, clove, rosemary, and tea tree) from romanian production were studied in order to assess them as bioactive compounds for active food packaging applications. the chemical composition of the oils was determined with the folin-ciocâlteu method and gas chromatography coupled with mass spectrometry and flame ionization detectors, and it was found that they respect the afnor/iso standard limits. the ...201728772407
antifungal activity against filamentous fungi of ts1, a multifunctional toxin from tityus serrulatus scorpion venom.antimicrobial peptides (amps) are ubiquitous and multipotent components of the innate immune defense arsenal used by both prokaryotic and eukaryotic organisms. the search for new amps has increased in recent years, due to the growing development of microbial resistance to therapeutical drugs. in this work, we evaluate the effects of tityus serrulatus venom (tsv), its fractions and its major toxin ts1, a beta-neurotoxin, on fungi growth. the fractions were obtained by ion-exchange chromatography ...201728634472
[ergot alkaloids agroclavine-1 and epoxyagroclavine-1, metabolites of penicillium corylophilum]. 20167122440
biodegradation of glyceryl trinitrate by penicillium corylophilum dierckx.penicillium corylophilum dierckx, isolated from a contaminated water wet, double-base propellant, was able to completely degrade glyceryl trinitrate (gtn) in a buffered medium (ph 7.0) containing glucose and ammonium nitrate. in the presence of 12 mg of initial fungal inoculum, gtn (48.5 to 61.6 mumol) was quantitatively transformed in a stepwise process to glyceryl dinitrate (gdn) and glyceryl mononitrate (gmn) within 48 h followed by a decrease in the gdn content with a concomitant increase in ...19979143106
flavor production from a non-stick oil by moulds.natural flavor was accidentally produced from rice cake products in japan. a non-stick oil had been sprayed on the products during the production process. it was found that a penicillium corylophilum strain, a contaminant of the oil, produced the flavor from the oil. the ingredients of the flavor were four volatile substances, 2-heptanone, 2-nonanone, 2-heptanol, and 2-nonanol. challenge tests with the mould strain in a rice cake system were performed under various conditions. the volatile subst ...200111383159
flavor production from edible oils and their constituents by penicillium corylophilum.production of volatile substances from edible oils and their constituents by penicillium corylophilum was studied to clarify the mechanism of flavor production from a non-stick oil by the organism in a rice cake system. first, edible oils from plant and animal origins were tested for flavor production. among the oils tested, coconut oil was the only one from which the flavor was produced. second, triacylglycerols consisting of fatty acids with various lengths of carbon chain (c6 to c13) were stu ...200212238154
optimization of process parameters for the bioconversion of activated sludge by penicillium corylophilum, using response surface methodology.the optimization of process parameters for the bioconversion of activated sludge by penicillium corylophilum was investigated using response surface methodology (rsm). the three parameters namely temperature of 33 degrees c, agitation of 150 r/min, and ph of 5 were chosen as center point from the previous study of fungal treatment. the experimental data on chemical oxygen demand (cod) removal (%) were fitted into a quadratic polynomial model using multiple regression analysis. the optimum proces ...200717913149
isochromans and α-pyrones from penicillium corylophilum.seven new secondary metabolites, four isochromans (1-4) and three α-pyrones (5-7), were isolated from penicillium corylophilum daom 242293 collected from a damp building in halifax, canada. their structures were elucidated by hresims, 1d and 2d nmr, chemical derivatization, ord, uv, and comparison to the literature. related isochromans have previously been reported from other penicillium species; however, to our knowledge this is the first report of α-pyrones from p. corylophilum. compounds 1-4 ...201424456578
secondary metabolites from penicillium corylophilum isolated from damp buildings.indoor exposure to the spores and mycelial fragments of fungi that grow on damp building materials can result in increased non-atopic asthma and upper respiratory disease. the mechanism appears to involve exposure to low doses of fungal metabolites. penicillium corylophilum is surprisingly common in damp buildings in usa, canada and western europe. we examined isolates of p. corylophilum geographically distributed across canada in the first comprehensive study of secondary metabolites of this fu ...201424891425
synthesis and determination of absolute configuration of α-pyrones isolated from penicillium corylophilum.the first total synthesis of (s)-6-(2,9-dihydroxynonyl)-4-hydroxy-3-methyl-2h-pyran-2-one, 4-hydroxy-3-methyl-6-((2s,4r)-2,4,11-trihydroxyundecyl)-2h-pyran-2-one, and its unnatural 2r,4r-isomer starting from commercially available 1,8-octanediol is described. the synthesis led to the revision of the proposed structural assignment of the natural product as (r)-6-(2,9-dihydroxynonyl)-4-hydroxy-3-methyl-2h-pyran-2-one. the key steps include chiral auxiliary mediated asymmetric acetate aldol reactio ...201425337961
modeling red cabbage seed extract effect on penicillium corylophilum: relationship between germination time, individual and population lag time.the inhibitory effect of a red cabbage seed extract on germination time, individual (single spore) and population lag time of penicillium corylophilum was studied. first, to compare the biological variability of single spore germination and lag times under stressful conditions, data were collected at levels of red cabbage seed extract varying from 0 to 10 mg/g (150 spores observed in each trial of germination, ca 50 spores in each individual lag experiment). experiments were performed on malt ag ...201526188372
identification of citrinin as the defence metabolite of penicillium corylophilum stressed with the antagonist fungus beauveria bassiana.penicillium corylophilum isolated from mosquitoes was cultivated in liquid media leading to the first reported identification of citrinin (1a) as one metabolic component of this fungus. the produced amount of 1a indicated this compound as the most abundant secondary metabolite of this fungus. stressing the culture of p. corylophilum with the presence of the antagonistic fungus beauveria bassiana increased in 65% the production of 1a. similar results were obtained with the presence of other fungi ...201222414191
assessment of sewage sludge bioremediation at different hydraulic retention times using mixed fungal inoculation by liquid-state bioconversion.sustainable, environmental friendly, and safe disposal of sewage treatment plant (stp) sludge is a global expectation. bioremediation performance was examined at different hydraulic retention times (hrt) in 3-10 days and organic loading rates (olr) at 0.66-7.81 g chemical oxygen demand (cod) per liter per day, with mixed filamentous fungal (aspergillus niger and penicillium corylophilum) inoculation by liquid-state bioconversion (lsb) technique as a continuous process in large-scale bioreactor. ...201423881591
modeling growth of three bakery product spoilage molds as a function of water activity, temperature and ph.the objective of this study was to quantify the effect of water activity, ph and storage temperature on the growth of eurotium repens, aspergillus niger and penicillium corylophilum, isolated from spoiled bakery products. moreover, the behaviors of these three mold species were compared to assess whether a general modeling framework may be set and re-used in future research on bakery spoilage molds. the mold growth was modeled by building two distinct gamma-type secondary models: one on the lag ...201425016208
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