| marianins a and b, prenylated phenylpropanoids from mariannaea camptospora. | marianins a (1) and b (2), two new prenylated phenylpropanoids, were isolated from the culture extract of the fungus mariannaea camptospora. structures of marianins were elucidated by interpretation of nmr and other spectroscopic data. 1 is a 5-methylcoumarin bearing two prenyloxy groups, while 2 is an orcinol derivative substituted with a 3,3-dimethyl-4-pentenoyl chain. 2 is possibly derived from 1 through a claisen rearrangement of the prenyl group, followed by lactone hydrolysis and decarboxy ... | 2011 | 21488655 |
| [correlations between the level of bacterial resistance and the rate of clinical efficiency in the therapy of community-acquired respiratory tract infections]. | the aim of the study is to evaluate the efficiency of the first-line antibiotic treatment of the community-acquired respiratory tract infections in a population of young adults from an urban setting and to establish the pattern of antibiotic resistance of the germs involved. the bacteria most frequently identified have been: s. pneumoniae, h. influenzae, m. catarrhalis, atypical agents also being suspected. antibiotic treatment has been chosen accordingly to the recent guidelines, total clinical ... | 2009 | 21495346 |
| microbiological quality of grey-mullet roe. | the greek grey-mullet roe is produced from the fully developed gonads of the female mullet (mugil cephalus) couth in lagoons during their reproductive migration. the traditional processing method of the roe includes, air drying, salting, shape formation and covering with multiple layers of natural beeswax for preservation and distribution. fish roe brands have been a staple in local diet and is increasingly becoming popular in the international market. as a ready-to-eat food it's microbial quali ... | 2011 | 21497664 |
| the bacterial diversity of pharmaceutical clean rooms analyzed by the fatty acid methyl ester technique. | clean rooms are largely employed in pharmaceutical companies whose purpose is to produce sterile drugs and devices. we employed gram staining and gas chromatography of fatty acid methyl esters extracted from whole cells of environmental isolates to characterize and identify bacteria isolated in each of 50 different clean rooms designed for the manufacturing of sterile medicinal products and to provide a fatty acid profile of the most common species of isolated bacteria. statistical analysis allo ... | 2010 | 21502015 |
| hydrocarbon-utilizing microorganisms naturally associated with sawdust. | sawdust, one of the materials used as sorbent for removing spilled oil from polluted environments was naturally colonized by hydrocarbon-utilizing fungi, 1×10(5)-2×10(5) colony forming units (cfu) g(-1), depending on the hydrocarbon substrate. this sorbent was initially free of hydrocarbon-utilizing bacteria. incubating wet sawdust at 30°c resulted in gradually increasing the fungal counts to reach after 6months between 5×10(6) and 7×10(6)cfug(-1), and the appearance of hydrocarbon-utilizing bac ... | 2011 | 21507457 |
| obtaining antimicrobial peptides by controlled peptic hydrolysis of bovine hemoglobin. | under standard conditions, the peptides and specially the active peptides were obtained from either the denatured hemoglobin that all structures are completely modified or either the native hemoglobin where all structures are intact. in these conditions, antibacterial peptides were isolated from a very complex peptidic hydrolysate which contains more than one hundred peptides having various sizes and characteristics, involving a complex purification process. the new hydrolysis conditions were ob ... | 2011 | 21510973 |
| immunology and probiotic impact of the newborn and young children intestinal microflora. | human body has developed a holistic defence system, which mission is either to recognize and destroy the aggressive invaders or to evolve mechanisms permitting to minimize or restore the consequences of harmful actions. the host immune system keeps the capital role to preserve the microbial intestinal balance via the barrier effect. specifically, pathogenic invaders such as, bacteria, parasites, viruses and other xenobiotic invaders are rejected out of the body via barriers formed by the skin, m ... | 2011 | 21515397 |
| [bacteriological quality of air in a ward for sterile pharmaceutical preparations]. | an extremely clean area is required for preparation of sterile pharmaceutical compounds, in compliance with international standards, to minimize the probability of microbial contamination. | 2011 | 21526280 |
| synthesis, antimicrobial activity and cytotoxicity of novel oxadiazole derivatives. | in the present study, 5-substituted-1,3,4-oxadiazolin-2-thiones (1a-b) were synthesized via the ring closure reactions of appropriate acid hydrazides with carbon disulphide. n-(benzothiazol-2-yl)-2-[[5-substituted-1,3,4-oxadiazol-2-yl]sulfanyl]acetamide derivatives (3a-j) were obtained by the nucleophilic substitution reactions of 5-substituted-1,3,4-oxadiazolin-2-thiones (1a-b) with n-(benzothiazol-2-yl)-2-chloroacetamides. the chemical structures of the compounds were elucidated by ir, (1)h nm ... | 2011 | 21534862 |
| synthesis and antimicrobial activities of hexahydroimidazo[1,5-a]pyridinium bromides with varying benzyl substituents. | variously substituted benzyl bromides were employed to quaternize hexahydrobenzylimidazo[1,5-a]pyridine (a) and the resulting bromides (1-11) were evaluated for their in vitro antimicrobial activity against 10 pathogenic microorganisms: staphylococcus aureus, staphylococcus epidermidis, bacillus cereus, micrococcus luteus, proteus vulgaris, escherichia coli, salmonella typhimurium, klebsiella pneumonia, candida albicans and candida krusei. antimicrobial activities were surprisingly high (mic: 0. ... | 2011 | 21543140 |
| a novel type iii crustin (cruses2) identified from chinese mitten crab eriocheir sinensis. | antimicrobial peptides are important effectors in the host innate immune response against microbial invasion. in the present study, the cdna encoding a crustin (designated cruses2) was cloned from chinese mitten crab eriocheir sinensis by using est analysis and rapid amplification of cdna ends (race) approach. the full-length cdna of cruses2 was of 1237 bp, containing a 5' untranslated region (utr) of 12 bp, a 3' utr of 886 bp with a poly (a) tail, and an open reading frame (orf) of 339 bp encod ... | 2011 | 21549196 |
| effects of coagulase-negative staphylococci and fibrin on breast capsule formation in a rabbit model. | background: the etiology and ideal clinical treatment of capsular contracture (cc) remain unresolved. bacteria, especially coagulase-negative staphylococci, have been previously shown to accelerate the onset of cc. the role of fibrin in capsule formation has also been controversial. objective: the authors investigate whether fibrin and coagulase-negative staphylococci (cons) modulate the histological, microbiological, and clinical outcomes of breast implant capsule formation in a rabbit model an ... | 2011 | 21551433 |
| rice seeds as sources of endophytic bacteria. | endophytic bacteria are considered to originate from the external environment. to examine the hypothesis that rice (oryza sativa, cultivar kinuhikari) seeds are a source of endophytic bacteria, we isolated endophytic bacteria from the shoots, remains of the seeds, and roots of rice seedlings that were aseptically cultivated in vitro from surface-disinfected seeds. of the various bacterial strains isolated, the closest relatives, identified by 16s rrna gene sequencing, were: bacillus firmus, b. f ... | 2009 | 21566368 |
| a lysozyme and magnetic bead based method of separating intact bacteria. | as a response to environmental stress, bacterial cells can enter a physiological state called viable but noncultivable (vbnc). in this state, bacteria fail to grow on routine bacteriological media. consequently, standard methods of contamination detection based on bacteria cultivation fail. although they are not growing, the cells are still alive and are able to reactivate their metabolism. the vbnc state and low bacterial densities are big challenges for cultivation-based pathogen detection in ... | 2011 | 21574057 |
| solid-state (19)f-nmr of peptides in native membranes. | to understand how membrane-active peptides (maps) function in vivo, it is essential to obtain structural information about them in their membrane-bound state. most biophysical approaches rely on the use of bilayers prepared from synthetic phospholipids, i.e. artificial model membranes. a particularly successful structural method is solid-state nmr, which makes use of macroscopically oriented lipid bilayers to study selectively isotope-labelled peptides. native biomembranes, however, have a far m ... | 2011 | 21598096 |
| production of cold-active bacterial lipases through semisolid state fermentation using oil cakes. | production of cold active lipase by semisolid state fermentation involves the use of agroindustrial residues. in the present study, semisolid state fermentation was carried out for the production of cold active lipase using micrococcus roseus, isolated from soil samples of gangotri glaciers, western himalayas. among various substrate tested, groundnut oil cake (goc) favored maximal yield of lipases at 15 ± 1°c within 48 h. supplementation of glucose 1% (w/v) as additional carbon source and ammon ... | 2011 | 21603249 |
| sponge swabs increase sensitivity of sterility testing of processed bone and tendon allografts. | sterility testing is the final, and critical, step in quality control of tissue banking. it informs the decision whether to release the tissue allografts for clinical use, or not. the most common method for sterility testing of structural bone and tendon allografts is to swab using cotton tip streaks. this method provides low recovery efficiency; and therefore may pass allografts with low bioburden, providing false negatives. our pilot data revealed organism recovery efficiencies of 60, 30 and 1 ... | 2011 | 21603957 |
| natural resistance of rose petals to microbial attack. | petals of red, yellow and white roses (rosa damascene mill.) of the family rosaceae were extracted with (1:1) methylene chloride/methanol and tested for their antimicrobial activities against four species of gram-positive bacteria (bacillus cereus, bacillus subtilis, micrococcus luteus and staphylococcus aureus), five species of gram-negative bacteria (enterobacter aerogenes, escherichia coli, klebsiella pneumonia, pseudomonas aeruginosa and serratia marcescens) and five species of fungi (penici ... | 2011 | 21614712 |
| comparative metabolic capabilities for micrococcus luteus nctc 2665, the "fleming" strain, and actinobacteria. | putative gene predictions of the gram positive actinobacteria micrococcus luteus (nctc 2665, "fleming strain") was used to construct a genome scale reconstruction of the metabolic network for this organism. the metabolic network comprises 586 reactions and 551 metabolites, and accounts for 21% of the genes in the genome. the reconstruction was based on the annotated genome and available biochemical information. m. luteus has one of the smallest genomes of actinobacteria with a circular chromosom ... | 2011 | 21618466 |
| phytochemical analysis and antimicrobial activities of methanolic extracts of leaf, stem and root from different varieties of labisa pumila benth. | a local herb, kacip fatimah, is famous amongst malay women for its uses in parturition; however, its phytochemical contents have not been fully documented. therefore, a study was performed to evaluate the phenolics, flavonoids, and total saponin contents, and antibacterial and antifungal properties of the leaf, stem and root of three varieties of labisia pumila benth. total saponins were found to be higher in the leaves of all three varieties, compared to the roots and stems. leaves of var. pumi ... | 2011 | 21623314 |
| studies on interaction of colloidal silver nanoparticles (snps) with five different bacterial species. | silver nanoparticles (snps) are being increasingly used in many consumer products like textile fabrics, cosmetics, washing machines, food and drug products owing to its excellent antimicrobial properties. here we have studied the adsorption and toxicity of snps on bacterial species such as pseudomonas aeruginosa, micrococcus luteus, bacillus subtilis, bacillus barbaricus and klebsiella pneumoniae. the influence of zeta potential on the adsorption of snps on bacterial cell surface was investigate ... | 2011 | 21640562 |
| bacterial contamination of commercial ear cleaners following routine home use. | ear cleaning solutions are designed for repeated use, which raises the possibility for bacterial contamination leading to recurrent or persistent infectious otitis. the purpose of this study was to investigate the prevalence of bacterial contamination of commercial ear cleaners following routine home use in dogs and to describe the characteristics that are associated with contamination. used ear cleaner bottles and information regarding their use were obtained from canine owners visiting veterin ... | 2011 | 21645141 |
| ryh: a minimal peptidic sequence obtained from beta-chain hemoglobin exhibiting an antimicrobial activity. | bovine hemoglobin is an animal protein described as source of bioactive peptides. enzymatic hydrolysis of this protein results into some peptides exhibiting antimicrobial activity against gram-positive and gram-negative bacteria. in this study, a family of peptides from the beta chain (beta-114-145 derived peptides) obtained by peptic hydrolysis of bovine hemoglobin, was purified by reverse-phase hplc and characterized by different analytical techniques (mass spectrometry, circular dichroism). t ... | 2011 | 21645568 |
| glucose autoxidation induces functional damage to proteins via modification of critical arginine residues. | nonenzymatic modification of proteins in hyperglycemia is a major mechanism causing diabetic complications. these modifications can have pathogenic consequences when they target active site residues, thus affecting protein function. in the present study, we examined the role of glucose autoxidation in functional protein damage using lysozyme and rgd-╬▒3nc1 domain of collagen iv as model proteins in vitro. we demonstrated that glucose autoxidation induced inhibition of lysozyme activity as well a ... | 2011 | 21661747 |
| sterility of the personal protection system in total joint arthroplasty. | background: bacteria shed by operating room personnel is a source of wound contamination and postoperative infections. the personal protection system (pps) was designed to decrease airborne bacteria and intraoperative contamination in total joint arthroplasty. questions/purposes: we determined the microbial contamination rate of the pps and incidence of contamination with key pathogens, staphylococcus aureus and coagulase-negative staphylococci. patients and methods: we prospectively evaluated p ... | 2011 | 21671110 |
| anti-proliferative activity of meroditerpenoids isolated from the brown alga stypopodium flabelliforme against several cancer cell lines. | the sea constitutes one of the most promising sources of novel compounds with potential application in human therapeutics. in particular, algae have proved to be an interesting source of new bioactive compounds. in this work, six meroditerpenoids (epitaondiol, epitaondiol diacetate, epitaondiol monoacetate, stypotriol triacetate, 14-ketostypodiol diacetate and stypodiol) isolated from the brown alga stypopodium flabelliforme were tested for their cell proliferation inhibitory activity in five ce ... | 2011 | 21673894 |
| [heterogenous expression and characterization of cag4 in helicobacter pylori]. | to construct prokaryotic fusion gene expression vector pet-28a-cag pathogenicity island protein 4 (cag4),express the recombinant fusion protein cag4 and analyze the enzyme activity of recombinant protein. | 2011 | 21800625 |
| isolation and identification of a novel inducible antibacterial peptide from the skin mucus of japanese eel, anguilla japonica. | in this study, acetone extracts and acidic extracts were prepared from skin mucus, gill, kidney, liver and spleen of the japanese eel, anguilla japonica, and they exhibited different levels of antibacterial activities against three strains of gram-negative bacteria, edwardsiella tarda, aeromonas hydrophila, aeromonas sp. and one gram-positive bacterium micrococcus leteus. the mucus was chosen as the source of antibacterial peptide for further purification of antibacterial peptides. following the ... | 2011 | 21796440 |
| how many bacteria live on the keyboard of your computer? | | 2011 | 21782282 |
| antibacterial properties of the skin mucus of the freshwater fishes, rita rita and channa punctatus. | the skin mucus of rita rita and channa punctatus was investigated to explore the possibilities of its antibacterial properties. | 2011 | 21780547 |
| [in process citation]. | | 2011 | 21774179 |
| detailed investigations on the solid cell culture and antimicrobial activities of the iranian arnebia euchroma. | in pursuit of strong shikalkin-producing cell lines, seeds of the iranian arnebia euchroma were collected from dena altitudes in the central zagross. chemical analysis showed that the dried root of the plant contained about 8.5% (w/w) shikalkin pigment. the root explants of the young plantlets, obtained from the germinated seeds, were used for establishing callus. then, parameters effective on proliferation and pigment production of the resulting calli were studied in detail. accordingly, two mo ... | 2011 | 21772789 |
| antibiotic production by myxobacteria plays a role in predation. | myxobacteria are predatory and are prolific producers of secondary metabolites. here, we tested a hypothesized role that secondary metabolite antibiotics function as weapons in predation. to test this, a myxococcus xanthus ?ta1 mutant, blocked in antibiotic ta (myxovirescin) production, was constructed. against escherichia coli this ta(-) mutant was defective in producing a zone of inhibition (zoi). this shows that ta is the major m. xanthus diffusible antibacterial agent against e. coli. corres ... | 2011 | 21764930 |
| three goose-type lysozymes in the gastropod oncomelania hupensis: cdna sequences and lytic activity of recombinant proteins. | three goose-type (g-type) lysozymes, designated as ohlysg1, ohlysg2 and ohlysg3 were identified from expressed sequence tags (ests) of a gastropod oncomelania hupensis, the intermediate host of schistosoma japonicum. the full cdna sequences of ohlysg1, ohlysg2 and ohlysg3 consisted of 735, 909 and 808 nucleotides, with an open reading frame of 198, 214 and 249 codons containing a 21, 7 and 8 amino acid (aa) signal peptide at the n-terminus, respectively. the three g-type lysozymes shared conserv ... | 2011 | 21756934 |
| antioxidant, electrochemical, thermal, antimicrobial and alkane oxidation properties of tridentate schiff base ligands and their metal complexes. | in this study, two schiff base ligands (hl(1) and hl(2)) and their cu(ii), co(ii), ni(ii), pd(ii) and ru(iii) metal complexes were synthesized and characterized by the analytical and spectroscopic methods. alkane oxidation activities of the metal complexes were studied on cyclohexane as substrate. the ligands and their metal complexes were evaluated for their antimicrobial activity against corynebacterium xerosis, bacillus brevis, bacillus megaterium, bacillus cereus, mycobacterium smegmatis, st ... | 2011 | 21752697 |
| insight on cellular and humoral components of innate immunity in squilla mantis (crustacea, stomatopoda). | for deeper insights into the function of crustacean haemocytes in immune responses, we studied the morphology and enzyme content of circulating cells of the mantis shrimp squilla mantis from the north adriatic sea, together with their ability to phagocytose foreign cells. we also assayed the enzyme content and the agglutinating and haemolytic activities of cell-free haemolymph. three haemocyte types, i.e., hyalinocytes, semigranulocytes and granulocytes, can be distinguished, according to cell a ... | 2011 | 21712093 |
| the identification and characterization of lysozyme from the hard tick haemaphysalis longicornis. | a full-length cdna-encoding lysozyme was obtained from cdna libraries of salivary glands of the hard tick haemaphysalis longicornis and designated as hllysozyme. the hllysozyme sequence represents an open reading frame for a putative signal peptide and the mature protein composed of 121 amino acids. the calculated molecular weight of the protein is 13.7 kda, and the theoretical isoelectric point is 9.85. hllysozyme shares 41-79% amino acid sequence identity with the lysozymes of other organisms. ... | 2010 | 21771526 |
| bacterial growth on ed ultrasound machines. | | 2011 | 21676573 |
| separation of lysozyme using superparamagnetic carboxymethyl chitosan nanoparticles. | functionalized fe(3)o(4) nanoparticles conjugated with polyethylene glycol (peg) and carboxymethyl chitosan (cm-cts) were developed and used as a novel magnetic absorbing carrier for the separation and purification of lysozyme from the aqueous solution and chicken egg white, respectively. the morphology of magnetic cm-cts nanoparticles was observed by transmission electron microscope (tem). it was found that the diameter of superparamagnetic carboxymethyl chitosan nanoparticles (fe(3)o(4) (peg+c ... | 2011 | 21727047 |
| antimicrobial activity of the methanolic bark extract of holarrhena pubescens (buch. ham), its fractions and the pure compound conessine. | the antimicrobial activity of the methanolic extract of the bark of holarrhena pubescens, its fractions, and conessine, a steroidal alkaloid, was determined against various bacteria and fungi using the agar diffusion method. they were all found to possess significant activity against some of the bacteria tested. the alkaloidal fraction and conessine also exhibited marginal activity against some of the fungi tested. the minimum inhibitory concentration (mic) value of conessine was determined agai ... | 2011 | 21834632 |
| bacterial infection of mudfish clarias gariepinus (siluriformes: clariidae) fingerlings in tropical nursery ponds. | bacterial infection among the most common cultured mudfish clarias gariepinus in africa, has become a cause of concern, because it constitutes the largest economic loss in fish farms. in order to provide useful biological data of the pathogens for good management practices, samples were collected monthly between january 2008 and december 2009 in three monoculture nursery ponds, located in three different positions: upriver (a, grassland), mid-river (b, mixed forest and grassland) and downriver ( ... | 2011 | 21717856 |
| native valve endocarditis due to micrococcus luteus: a case report and review of the literature. | abstract: | 2011 | 21714882 |
| evaluation of efficacy of topical povidone-iodine and different types of fluoroquinolones in the sterilization of bacterial flora on the conjunctiva. | abstract purpose: to compare the sterilization effectivity of topical povidone-iodine, ciprofloxacin, and ofloxacin on the conjunctival bacterial flora. methods: one hundred sixty-four eyes of 164 patients scheduled for cataract surgery were prospectively analyzed. conjunctival cultures were obtained 1 day before the surgery without any topical application in all patients. conjunctival flora was examined in 53 eyes of 53 patients (group i) 15ôçëmin after 5% topical povidone-iodine application on ... | 2011 | 21834670 |
| expression, characterization, and antimicrobial ability of t4 lysozyme from methylotrophic yeast hansenula polymorpha a16. | lysozyme is an enzyme that is essential for protection against bacterial infections. in this study, a t4 lysozyme gene was cloned into the yeast expression vector ppic9k under the control of the pichia pastoris glyceraldehyde-3-phosphate dehydrogenase promoter (pgap). a hansenula polymorpha-derived ribosomal dna (rdna)-targeting element was inserted into the expression vector and was critical for stable dna integration into the h. polymorpha chromosome. recombinant t4 lysozyme was successfully e ... | 2011 | 21706412 |
| detection, cellular localization and antibacterial activity of two lytic enzymes of pediococcus acidilactici atcc 8042. | aim:ôçé in pediococcus acidilactici atcc 8042, two activities of peptidoglycan hydrolase (pgh) with lytic effect against micrococcus lysodeikticus and staphylococcus aureus have been detected. this work intends to elucidate the growth phase of maximum lytic activity, the localization and the effectiveness of the activity against pathogenic gram-negative and gram-positive bacteria. methods and results:ôçé cells were grown in mrs medium and collected at different growth stages, and the proteins we ... | 2011 | 21707881 |
| wound healing properties and kill kinetics of clerodendron splendens g. don, a ghanaian wound healing plant. | as part of our general objective of investigating indigenous plants used in wound healing in ghana, we hereby report our findings from some in vitro and in vivo studies related to wound healing activities of clerodendron splendens g. don (verbanaceae). methanolic extract of the aerial parts of the plant was tested for antimicrobial activity against gram positive bacteria (bacillus subtilis, staphylococcus aureus, streptococcus faecalis, micrococcus flavus, as well as resistant strains of staph. ... | 2010 | 21808542 |
| the inhibitory effects of wine phenolics on lysozyme activity against lactic acid bacteria. | the lysozyme of hen's egg white is used in winemaking to control spontaneous lactic acid bacteria (lab). a total of eight lab strains, isolated from grape must and wine, were used to assess the inhibitory effects of wine phenolics on lysozyme activity. the presence of phenolics, extracted from grape pomace, in growth medium reduced the mortality rate due to the lysozyme activity. this effect was especially clear in the case of strains belonging to lactobacillus uvarum, pediococcus parvulus and o ... | 2011 | 21683465 |
| Synthesis and performance of 3D-Megaporous structures for enzyme immobilization and protein capture. | The preparation of megaporous bodies, with potential applications in biotechnology, was attempted by following several strategies. As a first step, naive and robust scaffolds were produced by polymerization of selected monomers in the presence of a highly soluble cross-linker agent. Ion-exchange function was incorporated by particle embedding, direct chemical synthesis, or radiation-induced grafting. The total ionic capacity of such systems was 1.5 mmol H(+) /g, 1.4 mmol H(+) /g, and 17 mmol H(+ ... | 2011 | 21692198 |
| [Synthesis and antimicrobial evaluation of coumarin-based benzotriazoles and their synergistic effects with chloromycin and fluconazole]. | A series of new coumarin-based benzotriazole derivatives were successfully synthesized via a multi-step sequence of cyclization, etherification and N-alkylation, and were confirmed by 1H NMR, IR, MS spectra as well as elemental analyses. All these synthesized coumarin compounds were evaluated for in vitro antimicrobial activities against four Gram-positive bacteria, four Gram-negative bacteria and three fungi by two fold serial dilution technique. The bioactive assay showed that all these prepar ... | 2011 | 22010349 |
| functional analysis of two lebocin-related proteins from manduca sexta. | insects produce a group of antimicrobial peptides (amps) in response to microbial infections. most amps are synthesized as inactive precursors/pro-proteins and require proteolytic processing to generate small active peptides. here we report identification and functional analysis of two lebocin-related proteins (leb-b and leb-c) from the tobacco hornworm, manduca sexta. the mrna levels of leb-b and leb-c increased significantly in larval fat body and hemocytes after injection of escherichia coli, ... | 2011 | 22198332 |
| quality characteristics of doner kebab made from sucuk dough which is a dry fermented turkish sausage. | the objective of this study was to determine certain quality characteristics of the raw and cooked doner kebabs made from beef and sucuk dough which is a traditional fermented sausage. the doners were divided into two groups; traditional beef doners and sucuk dough groups, and all the samples were frozen and stored at (-30 ±1 °c) for 60 days to monitor their quality characteristics. all of the raw and cooked doner samples were subjected to chemical and microbiological analysis while only the coo ... | 2004 | 22061816 |
| Effects of microplusin, a copper-chelating antimicrobial peptide, against Cryptococcus neoformans. | Microplusin is an antimicrobial peptide isolated from the cattle tick Rhipicephalus (Boophilus) microplus. Its copper-chelating ability is putatively responsible for its bacteriostatic activity against Micrococcus luteus as microplusin inhibits respiration in this species, which is a copper-dependent process. Microplusin is also active against Cryptococcus neoformans (MIC(50) = 0.09 µM), the etiologic agent of cryptococcosis. Here, we show that microplusin is fungistatic to C. neoformans and thi ... | 2011 | 22092765 |
| Composition and antimicrobial activity of Seseli globiferum essential oil. | The essential oil from aerial parts of Seseli globiferum Vis. obtained by hydrodistillation with Clevenger-type apparatus was analyzed by GC-MS. Twenty-eight compounds were identified, representing 99.4% of the total oil. The main components of the oil were sabinene (38.0%), alpha-pinene (21.2%) and beta-phellandrene (13.5%). The microbial growth inhibitory properties of the isolated essential oil were determined using the broth microdilution method against seven bacterial species: Salmonella ty ... | 2011 | 21922927 |
| Dynamics and diversity of phosphate mineralizing bacteria in the coral reefs of Gulf of Mannar. | Phosphatase Producing Bacteria (PPB) and Inorganic Phosphate Solubilizing Bacteria (IPSB) are important to reef nutrition. These microbes and phosphate concentration play a significant role in the productivity of coral reef ecosystems. A study was conducted in Gulf of Mannar coral reef ecosystem to understand the diversity of these groups of bacteria and their competence in mineralizing the phosphate. The PPB isolates were identified under six genera i.e. Bacillus, Pseudomonas, Micrococcus, Vibr ... | 2011 | 21953521 |
| use of bacteriocin-producing starter cultures of lactobacillus plantarum and lactobacillus curvatus in production of ostrich meat salami. | ostrich meat salami was produced by using lactobacillus plantarum strain 423 and lactobacillus curvatus strain df126. the strains produce the bacteriocins plantaricin 423 and curvacin df126, respectively. the specific activity of plantaricin 423 in mrs broth at 30 °c increased as the ph decreased from 6.5 to 3.5, but activity subsequently decreased. the activity of curvacin df126 increased under the same conditions, but remained stable for the duration of the growth cycle. maximum curvacin df126 ... | 2004 | 22060880 |
| N-O chemistry for antibiotics: discovery of N-alkyl-N-(pyridin-2-yl)hydroxylamine scaffolds as selective antibacterial agents using nitroso Diels-Alder and ene chemistry. | The discovery, syntheses, and structure-activity relationships (SAR) of a new family of heterocyclic antibacterial compounds based on N-alkyl-N-(pyridin-2-yl)hydroxylamine scaffolds are described. A structurally diverse library of ~100 heterocyclic molecules generated from Lewis acid-mediated nucleophilic ring-opening reactions with nitroso Diels-Alder cycloadducts and nitroso ene reactions with substituted alkenes was evaluated in whole cell antibacterial assays. Compounds containing the N-alky ... | 2011 | 21859126 |
| a newly isolated streptomyces sp. cs392 producing three antimicrobial compounds. | with the aim of isolating new microbes capable of producing strong antimicrobial substances, strain cs392 was screened from 700 soil isolates preserved in our laboratory. the strain was related to genus streptomyces based on various characteristics. three highly active antimicrobial compounds, c1, c2 and c3, produced by the strain were purified by solvent extraction followed by silica gel column chromatography. these compounds were highly active against various gram-positive resistant bacteria s ... | 2011 | 21909674 |
| active site mutants of human secreted group iia phospholipase a2 lacking hydrolytic activity retain their bactericidal effect. | the human secreted group iia phospholipase a(2) (hspla2giia) presents potent bactericidal activity, and is considered to contribute to the acute-phase immune response. hydrolysis of inner membrane phospholipids is suggested to underlie the bactericidal activity, and we have evaluated this proposal by comparing catalytic activity with bactericidal and liposome membrane damaging effects of the g30s, h48q and d49k hspla2giia mutants. all mutants showed severely impaired hydrolytic activities agains ... | 2012 | 21986368 |
| ionothermal synthesis of hierarchical biobr microspheres for water treatment. | bismuth oxybromide (biobr) micropsheres with hierarchical morphologies have been fabricated via an ionothermal synthesis route. ionic liquid acts as a unique soft material capable of promoting nucleation and in situ growth of 3d hierarchical biobr mesocrystals without the help of surfactants. the as-prepared biobr nanomaterials can effectively remove heavy metal ions and organic dyes from wastewater. they can also kill micrococcus lylae, a gram positive bacterium, in water under fluorescent ligh ... | 2011 | 22088503 |
| A new biphenyl and antimicrobial activity of extracts and compounds from Clusia burlemarxii. | Phytochemical investigation on Clusia burlemarxii (Clusiaceae) led to isolation and identification of nine compounds. Were isolated from leaves 3-O-a-L- rhamnopyranosylquercetin, 3-O-a-L-rhamnopyranosylkaempferol, 4-hydroxy-5,5-dimethyldihydrofuran-2-one, 2Z-d-tocotrienoloic acid and friedelin and were isolated from trunk betulinic acid, protocatechuic acid, lyoniresinol, and a new biphenyl 2,2-dimethyl-3,5-dihydroxy-7-(4-hydroxyphenyl)chromane. The structures were determined by ¹H, ¹³C-NMR, DEP ... | 2011 | 21893172 |
| Viability and Biomass of Micrococcus luteus DE2008 at Different Salinity Concentrations Determined by Specific Fluorochromes and CLSM-Image Analysis. | In previous studies, our group developed a method based on Confocal Laser Scanning Microscopy and Image Analysis (CLSM-IA) to analyze the diversity and biomass of cyanobacteria in microbial mats. However, this method cannot be applied to heterotrophic microorganisms, as these do not have autofluorescence. In this article, we present a method that combines CLSM-IA and Hoechst 33342 and SYTOX Green fluorochromes (FLU-CLSM-IA) to determine the viability and biomass of Micrococcus luteus DE2008, iso ... | 2012 | 22006073 |
| The effects of different levels of orange fiber and fat on microbiological, physical, chemical and sensorial properties of sucuk. | The effects of orange fiber and fat levels on the physical, chemical and microbiological properties of sucuk (Turkish dry-fermented sausage) were investigated. Different levels of orange fiber (0, 2 and 4%) were added to sucuk batters with different levels of fat (10, 15 and 20%). Sucuk samples were analyzed during ripening. Lactic acid bacteria, Micrococcus/Staphylococcus and pH value were effected very significantly by orange fiber. Orange fiber caused a decrease in residual nitrite levels and ... | 2012 | 22202881 |
| palmaenones a and b, two new antimicrobial chlorinated cyclopentenones from discomycete lachnum palmae. | two new antimicrobial chlorinated cyclopentenones, palmaenones a (1) and b (2) were isolated from the culture broth of discomycete lachnum palmae (nbrc-106495), and the structures of 1 and 2 were elucidated by spectroscopic data and the stereochemistry of 1 was directly determined by a single-crystal x-ray diffraction analysis. palmaenones a (1) and b (2) are cyclopentenones containing three chlorines. compound 1 exhibited potent antimicrobial activity against micrococcus luteus, mycobacterium s ... | 2011 | 22130381 |
| surface interactions and fouling properties of micrococcus luteus with microfiltration membranes. | this study was conducted to investigate microbial adhesion of micrococcus luteus to polypropylene (pp) and polyvinylidene fluoride (pvdf) membranes in relation to the variation of the interfacial energies in the membrane-bacteria systems, for revealing effects of short-range surface interactions on filtration behavior. both the membranes and m. luteus showed typical strong electron donors and hydrophilic properties. the ab component was dominant in the interfacial energies of the two membrane-ba ... | 2011 | 21870124 |
| the microbiology of sheep carcasses processed in a modern indian abattoir. | a study has been conducted on the microbiology of sheep carcasses processed in a modern abattoir. the data revealed that careful handling at the different stages of processing of sheep reduced the level of microbial contamination of carcasses. processing steps such as evisceration and washing did not increase the microbial counts on the carcass surface. sources of microbial contamination in the abattoir were examined. it was observed that skin, floor washings, intestinal contents and gambrels we ... | 1992 | 22059893 |
| antimicrobial activity, cytotoxicity, and phytochemical screening of voacanga globosa (blanco) merr. leaf extract (apocynaceae). | to determine the antibacterial, antifungal, antiprotozoal, cytotoxic, and phytochemical properties of ethanol extracts of leaves of voacanga globosa (blanco) merr. (v. globosa). | 2011 | 22014741 |
| the role of speciation in positive lowenstein-jensen culture isolates from a high tuberculosis burden country. | to determine the need for routine speciation of positive lowenstein-jensen mycobacterial cultures in hiv-infected patients suspected of having pulmonary tuberculosis at mulago hospital in kampala, uganda. | 2011 | 22073241 |
| characterization in the archaeological excavation site of heterotrophic bacteria and fungi of deteriorated wall painting of herculaneum in italy. | microbiological characterization of frescos in four different locations (collegio degli augustali, casa del colonnato tuscanico, casa dello scheletro and casa del gran portale) of excavation sites of herculaneum was carried out. the use of infrared thermography allowed detecting sample points on frescos with greatest moisture not visible to the naked eye, resulting in structural damage. the microclimatic conditions provided perfect habitat for bacteria and fungi, particularly of spore forming an ... | 2011 | 21882662 |
| microbial profiles of minced meat. | minced meat was examined for microbiological quality and for shelf-life at higher temperatures. total plate counts, coliforms, staphylococcus aureus, enterococci and psychrotrophs were estimated. types of bacteria associated with meat spoilage were isolated and identified. it was observed that minced meat obtained from local retail shops showed significantly higher microbial counts and shorter shelf-life than that processed under hygienic conditions. the predominant bacteria associated with fres ... | 1988 | 22055743 |
| synthesis, antimicrobial activity and cytotoxicity of some new carbazole derivatives. | in this work, some n-(9-ethyl-9h-carbazole-3-yl)-2-(phenoxy)acetamide derivatives were synthesised and evaluated for their antimicrobial activity and cytotoxicity. the structural elucidation of the compounds was performed by ir, (1)h-nmr, (13)c-nmr and fab(+)-ms spectral data and elemental analyses. the title compounds were obtained by reacting 2-chloro-n-(9-ethyl-9h-carbazole-3-yl)acetamide with some substituted phenols. the synthesised compounds were investigated for their antibacterial and an ... | 2011 | 21999633 |
| characterization of micrococcus strains isolated from indoor air. | the characterization of microbes, such as opportunists and pathogens (e.g., methicillin resistant staphylococcus aureus [mrsa]), in indoor air is important for understanding disease transmission from person-to-person. common genera found in the human skin microbiome include micrococcus and staphylococcus, but there only a limited number of tests to differentiate these genera and/or species. both genera are believed to be released into indoor air from the shedding of human skin and are morphologi ... | 2011 | 21963944 |
| black tongue associated with kocuria (micrococcus) kristinae bacteremia in a 4-month-old infant. | | 2011 | 21935583 |
| effect of chitosan in meat preservation. | the effect of chitosan in meat preservation, including microbiological, chemical, sensory and color qualities, was examined. in liquid medium, chitosan (0·01%) inhibited the growth of some spoilage bacteria such as bacillus subtilis ifo 3025, escherichia coli rb, pseudomonas fragi ifo 3458 and staphylococcus aureus iam 1011. at higher concentrations (0·1 and 1·0%) it inhibited the growth of the meat starter cultures, lactobacillus plantarium iam 1216, pediococcus pentosaceus iam 12296 and microc ... | 1994 | 22059662 |
| [pitted keratolysis--how to treat?]. | pitted keratolysis is a common and problematic skin condition affecting the feet caused by the keratolytic activity of corynebacterium, micrococcus, dermatophilus. skin lesions are characterized by crater-like pits of the epidermis accompanied by a burning sensation, itching, pain and malodor. the purpose of the present paper was to characterise the disease's clinical features and possibilities for the therapy. due to its interdisciplinary nature, not only dermatologists ought to be familiar wit ... | 2011 | 21936353 |
| The first homolog of pacifastin-related precursor in the swimming crab (Portunus trituberculatus): Characterization and potential role in immune response to bacteria and fungi. | Among all the serine proteinase inhibitor families (SPIs), the pacifastin-related inhibitor is seldom isolated. A pacifastin-related SPI named as PtPLC was identified from the swimming crab Portunus trituberculatus in this study. The full-length of PtPLC was cloned from haemocytes cDNA library by the combination of homology cloning and rapid amplification of cDNA ends (RACE). The PtPLC contained an open reading frame (ORF) of 1098 bp encoding a putative pacifastin-related precursor of 365 amino ... | 2012 | 22154999 |
| Phenoloxidase in the scallop Chlamys farreri: Purification and antibacterial activity of its reaction products generated in vitro. | Phenoloxidase (PO) was purified from hemocytes of the scallop Chlamys farreri using native-PAGE and gel permeation column chromatography, and then substrate specificity and antibacterial activity generated from reaction products of purified PO were analyzed. The results showed purified PO had a molecular mass of 576 kDa in native-PAGE and 53 kDa in denatured PAGE, and could catalyze the substrates L-3,4-dihydroxyphenylalanine (L-DOPA), dopamine, catechol and hydroquinone suggesting it is a type ... | 2012 | 22119576 |
| production of salami from ostrich meat with strains of lactobacillus sake, lactobacillus curvatus and micrococcus sp. | the aim of this study was to produce italian-type salami from ostrich meat using different combinations of lactobacillus sake, lactobacillus curvatus and micrococcus sp., and to compare the sensory characteristics of these products to that of salami produced with glucono-delta-lactone (gdl). meat inoculated with starter cultures was fermented for four days (20-22 °c, 97-99% rh) and ripened for a further 11 days (16-18 °c, 40-60% rh). cell counts of lactic acid bacteria and micrococci, and change ... | 1996 | 22060827 |
| Synthesis and Antibacterial Activities of Novel 2,5-Diphenylindolo[2,3-e] Pyrazolo[1',5':3",4"]pyrimido[2",1"-c] [1,2,4]triazines. | The formation of (E)-3-{2-(2,5-diphenylpyrazolo[1,5-c]pyrimidin-7-yl)hydrazono}indolin-2-ones 3 has been achieved by condensation of equimolar amounts of 7-hydrazino-2,5-diphenylpyrazolo[1,5-c]pyrimidine (1) and isatin (or isatin derivatives) 2 at room temperature. The (E)-products could be isomerized into corresponding the (Z)-3 isomers. Reactions of the latter fused heterocyclic hydrazones towards different electro-philic reagents yielded the corresponding 3-substituted derivatives 4-7. Dehydr ... | 2011 | 22173333 |
| in vitro screening of circium arvense for potential antibacterial and antifungal activities. | the antimicrobial activities of circium arvense extracts were evaluated against two human gram positive (staphylococcus aureus, micrococcus luteus) and four gram negative pathogen (escherichia coli, pseudomonas aeruginosa, enterobacter, klebsiella pneumoniae). the methanol extracts of circium arvense were used to obtain various fractions (x1) n-hexane, (x2) chloroform, (x3) ethyl acetate and (x4) n-butanol. the agar well diffusion assay and agar dilution susceptibility testing were carried out t ... | 2011 | 21959814 |
| is photocleavage of dna by yoyo-1 using a synchrotron radiation light source sequence dependent? | the photocleavage of double-stranded and single-stranded dna by the fluorescent dye yoyo-1 was investigated in real time by using the synchrotron radiation light source astrid (isa, denmark) both to initiate the reaction and to monitor its progress using couette flow linear dichroism (ld) throughout the irradiation period. the dependence of ld signals on dna sequences and on time in the intense light beam was explored and quantified for single-stranded poly(da), poly[(da-dt)(2)], calf thymus dna ... | 2011 | 21931957 |
| diversity and antibacterial activities of fungi derived from the gorgonian echinogorgia rebekka from the south china sea. | the diversity of symbiotic fungi associated with the gorgonian coral echinogorgia rebekka from the weizhou coral reef in the south china sea was investigated. combined with morphologic traits, its-rdna sequences revealed 18 fungal strains from this gorgonian. all of the 18 fungi belonged to the phylum ascomycota and were distributed among seven genera in five orders: eurotiales (aspergillus and penicillium), pleosporales (alternaria), capnodiales (cladosporium), trichosphaeriales (nigrospora) an ... | 2011 | 21892352 |
| a pilot study on ethanol-polyethylene glycol-formalin fixation of farm animal cadavers. | most embalming of cadavers for anatomical dissection in veterinary medicine has used 6-10% formaldehyde resulting in discoloured and rigid specimens. this project produced teaching specimens of sheep, horse and calf cadavers having their musculoskeletal and visceral structures with a natural appearance using a fixation solution with lowered concentrations of formaldehyde (2% and 3%) together with ethanol and polyethylene glycols. fixation parameters (palpable consistency, flexibility, colour, ti ... | 2011 | 22059293 |
| Gene cloning and characterization of a cold-adapted ß-glucosidase belonging to glycosyl hydrolase family 1 from a psychrotolerant bacterium Micrococcus antarcticus. | The gene bglU encoding a cold-adapted ß-glucosidase (BglU) was cloned from Micrococcus antarcticus. Sequence analysis revealed that the bglU contained an open reading frame of 1419 bp and encoded a protein of 472 amino acid residues. Based on its putative catalytic domains, BglU was classified as a member of the glycosyl hydrolase family 1 (GH1). BglU possessed lower arginine content and Arg/(Arg+Lys) ratio than mesophilic GH1 ß-glucosidases. Recombinant BglU was purified with Ni2+ affinity chro ... | 2011 | 22112277 |
| catalase-positive cocci in fermented sausage: variability due to different pork breeds, breeding systems and sausage production technology. | the aim of this study was to compare the ecology of catalase-positive cocci (cpc) present in traditional fermented sausages produced using different breeds of pork, each of which was raised in two different environments and processed using two different technologies. semi-quantitative molecular methods were used to determine bacterial identities. almost all fermentations were characterised by a significant increase in cpc during the first few days of fermentation, reaching values of 10(5)-10(6) ... | 2012 | 22202871 |
| isolation and identification of microbes associated with mobile phones in dammam in eastern saudi arabia. | this study was conducted to determine microbial contamination of mobile phones in the city of dammam, in the eastern region of saudi arabia, and identify the most important microbial species associated with these phones in order to take the necessary remedial measures. | 2010 | 22022665 |
| antimicrobial peptides keep insect endosymbionts under control. | vertically transmitted endosymbionts persist for millions of years in invertebrates and play an important role in animal evolution. however, the functional basis underlying the maintenance of these long-term resident bacteria is unknown. we report that the weevil coleoptericin-a (cola) antimicrobial peptide selectively targets endosymbionts within the bacteriocytes and regulates their growth through the inhibition of cell division. silencing the cola gene with rna interference resulted in a decr ... | 2011 | 22021855 |
| an experimental model for the spatial structuring and selection of bacterial communities. | community-level selection is an important concept in evolutionary biology and has been predicted to arise in systems that are spatially structured. here we develop an experimental model for spatially-structured bacterial communities based on coaggregating strains and test their relative fitness under a defined selection pressure. as selection we apply protozoan grazing in a defined, continuous culturing system. we demonstrate that a slow-growing bacterial strain blastomonas natatoria 2.1, which ... | 2011 | 21906633 |
| characterisation and screening for antimicrobial substances of slaughtered cattle in zaria, nigeria. | the occurrence of antimicrobial drug residues in 500 routinely slaughtered cattle in zaria, nigeria, was determined. a microbial inhibition test with micrococcus luteus atcc9341 was used to test urine at the time of slaughter for the presence of antimicrobial substances. thirty-seven (7.4%) of the urine samples were positive for antimicrobial substances. positive cases were not distributed according to breed (p>0.05), but occurred significantly more in male cattle aged 3-9 years and in those wit ... | 2002 | 22061074 |
| Ctriporin, a new anti-methicillin-resistant Staphylococcus aureus peptide from the venom of the scorpion Chaerilus tricostatus. | Antibiotic-resistant microbes, such as methicillin-resistant Staphylococcus aureus, seriously threaten human health. The outbreak of "superbugs" in recent years emphasizes once again the need for the development of new antimicrobial agents or resources. Antimicrobial peptides have an evident bactericidal effect against multidrug-resistant pathogens. In the present study, a new antimicrobial peptide, ctriporin, was cloned and characterized from the venom of the scorpion Chaerilus tricostatus, an ... | 2011 | 21876042 |
| potential of mycobacterium tuberculosis resuscitation-promoting factors as antigens in novel tuberculosis sub-unit vaccines. | novel vaccines are needed to control tuberculosis (tb), the bacterial infectious disease that together with malaria and hiv is worldwide responsible for high levels of morbidity and mortality. tb can result from the reactivation of an initially controlled latent infection by mycobacterium tuberculosis (mtb). mtb proteins for which a possible role in this reactivation process has been hypothesized are the five homologs of the resuscitation-promoting factor of micrococcus luteus, namely mtb rv0867 ... | 2012 | 21920450 |
| Effect of polymorphism in egg white lysozyme on muramidase and antibacterial activities as well as hatchability in the Japanese quail (Coturnix japonica). | Lysozyme is one of the best characterized antimicrobial proteins in egg white. Three phenotypes of egg white lysozyme in Japanese quail, Coturnix japonica, (namely F, FS, and S) were observed by acid polyacrylamide gel electrophoresis. The fast (F) phenotype showed faster mobility on Acid-PAGE than the slow (S) phenotype. Comparison of the coding sequences for lysozyme derived from the S and F phenotypes revealed a nonsynonymous single nucleotide polymorphism (SNP) at nucleotide position 115 fro ... | 2011 | 22205671 |
| physico-chemical and microbiological profiles of "salchichón" (spanish dry-fermented sausage) enriched with orange fiber. | spanish dry-fermented sausages with three concentrations (0, 1 and 2%) of orange fiber (juice industry by-product) were prepared and studied. fermentation and dry-curing processes were followed by physico-chemical (ph and water activity), chemical (moisture, lactic acid and residual nitrite level) and microbiological (aerobic mesophilic bacteria, lactic acid bacteria, enterobacteriaceae, micrococcaceae and molds and yeasts counts) analysis. sensory analyses were conducted on the finished product ... | 2008 | 22063347 |
| production of bacteriocin-like metabolites by lactic acid cultures isolated from sucuk samples. | a total of 51 sucuk samples, obtained from different regions of turkey, were examined for lactic acid bacteria (lab) strains producing putative bacteriocin-like metabolites. for detection of antagonistic activity, agar spot and well diffusion assay tests were used. lactobacillus sake lb790, listeria monocytogenes li6, staphylococcus aureus st44 and escherichia coli nrrl b-3704 were used as indicator organisms. strains having antimicrobial activity were also tested against clostridium perfringens ... | 2000 | 22060908 |
| evaluation of the microbial flora found in woodwind and brass instruments and their potential to transmit diseases. | previous studies of dental devices (toothbrushes, dentures, and protective athletic mouthguards) have demonstrated microbial contamination of these devices and possible transmission of infectious diseases to the users. since woodwind and brass instruments come into intimate contact with the musician's oral cavity and often are passed from student to student without sanitization, the question arises as to whether these instruments are contaminated and can transmit microbial diseases. the purpose ... | 2011 | 21903519 |
| tyramine degradation by micrococci during ripening of fermented sausage. | the ability of tyramine oxidase exhibiting strains of micrococcus varians to degrade tyramine in vivo during sausage fermentation was investigated. fermented sausage was produced with a tyramine forming strain of lactobacillus curvatus which acquired a final tyramine concentration of 190ppm. the addition of either one of two strains of m. varians exhibiting a potential to oxidise tyramine decreased the amount of tyramine formed to 160 and 150ppm, respectively. no effect on growth of l. curvatus ... | 1998 | 22060579 |
| Biomimetic CO2 sequestration using purified carbonic anhydrase from indigenous bacterial strains immobilized on biopolymeric materials. | The present study deals with immobilization of purified CA and whole cell of Pseudomonas fragi, Micrococcus lylae, and Micrococcus luteus 2 on different biopolymer matrices. Highest enzyme immobilization was achieved with P. fragi CA (89%) on chitosan-KOH beads, while maximum cell immobilization was achieved with M. lylae (75%) on chitosan-NH(4)OH beads. A maximum increase of 1.08-1.18 fold stability between 35 and 55°C was observed for M. lylae immobilized CA. The storage stability was improved ... | 2011 | 22112959 |
| an antimicrobial diketopiperazine alkaloid and co-metabolites from an endophytic strain of gliocladium isolated from strychnos cf. toxifera. | from an endophytic strain of gliocladium sp. isolated from the amazonian plant strychnos cf. toxifera, we obtained the diketopiperazine alkaloid cyclo-(glycyl-l-tyrosyl)-4,4-dimethylallyl ether (1), the steroids ergosterol (2), ergosterol peroxide (3), cerevisterol (4) and the citric acid (5). the acoet extract of the fermented broth by gliocladium sp. showed potent activity against the cancer cell lines mda-mb435 (human breast cancer cells), hct-8 (human colorectal cancer cells) and sf-295 (hum ... | 2011 | 22117164 |
| effects of starter cultures and nitrite levels on formation of biogenic amines in sucuk. | the effects of starter cultures, starter a (lactobacillus sakei+staphylococcus carnosus) and starter b (pediococcus acidilactici+staphylococcus xylosus+lactobacillus curvatus), nitrite levels (0, 75, and 150ppm) and ripening period on biogenic amine production were investigated in sucuk (turkish dry-fermented sausage) production. changes in biogenic amines, ph, water activity, moisture, non-protein nitrogen, nitrite and counts of lactic acid bacteria, micrococcus/staphylococcus, enterobacteriace ... | 2007 | 22061796 |
| Isolation and characterization of aerobic culturable arsenic-resistant bacteria from surfacewater and groundwater of Rautahat District, Nepal. | Arsenic (As) contamination of groundwater is a serious Environmental Health Management issue of drinking water sources especially in Terai region of Nepal. Many studies have reported that due to natural abundance of arsenic in the environment, various bacteria have developed different resistance mechanisms for arsenic compound. In this study, the culturable arsenic-resistant bacteria indigenous to surfacewater as well as groundwater from Rautahat District of Nepal were randomly isolated by stand ... | 2011 | 21868146 |
| staphylococcal growth and enterotoxin production in the presence of meat cultures (non lab). | the effect of meat cultures (non lactic acid bacteria) on the growth and production of enterotoxins and thermonuclease by staphylococcus aureus was studied. micrococcus varians did not affect growth nor the synthesis of metabolites. levels of enterotoxins a, b and d produced by the respective s. aureus strains were reduced by s. xylosus, s. saprophyticus and s. carnosus. the two latter species prevented production of enterotoxin c(1) and s. xylosus markedly reduced the amount produced. the three ... | 1996 | 22060592 |