Effect of freezing and thawing on cell membranes of Lentinus edodes, the shiitake mushroom.

abstract：:Over a 3-week period, samples of fresh, chopped, pork meat were taken every morning and afternoon from 50 meat stalls. Microbiological examination revealed that the samples had (c.f.u./g): total microbes, 1×10(3) to 2.14×10(6); mean probable numbers of coliforms and Escherichia coli, 1.51×10(3) to 1.15×10(4); and yeas...

journal_title：World journal of microbiology & biotechnology

authors： O'Toole DK

更新日期：1995-11-01 00:00:00

abstract：:A commercial cellulase was first assessed to be effective in hydrolyzing glycosyl at the C-3 and C-26 positions in steroidal saponins from yellow ginger (Dioscorea zingiberensis C. H. Wright) to diosgenin, a very important chemical in the pharmaceutical industry. The effect of different parameters on enzyme hydrolysis...

journal_title：World journal of microbiology & biotechnology

authors： Liu W,Huang W,Sun W,Zhu Y,Ni J

更新日期：2010-07-01 00:00:00

abstract：:Anabaena doliolum grown under molybdenum deficiency produced less biomass (on a dry wt basis) and the cells had lower protein content but higher carbohydrate content than Mo-grown material. Molybdenum deficiency led to a slight decrease in chlorophyll a, a 1.5-fold increase in carotenoids and a 1.4-fold increase in to...

journal_title：World journal of microbiology & biotechnology

authors： Rathore DS,Kumar A,Kumar HD

更新日期：1993-09-01 00:00:00

abstract：:The mushroom Flammulina velutipes and the white-rot fungus Trametes versicolor were cultivated separately on sugarcane bagasse for 40 days. Trametes versicolor produced laccase and manganese-peroxidase activities, showing a simultaneous degradation of lignin and holocellulose. However, only phenoloxidase activity was ...

journal_title：World journal of microbiology & biotechnology

authors： Pal M,Calvo AM,Terrón MC,González AE

更新日期：1995-09-01 00:00:00

abstract：:Dissolved oxygen (DO) is a significant operational parameter in biological systems. In this study, a pilot-scale biofilter was constructed to investigate the removal efficiency of ammonia, iron and manganese, as well as the microbial community structure evolution at different DO concentrations. Results indicated that ...

journal_title：World journal of microbiology & biotechnology

authors： Cheng Q,Huang Y,Nengzi L,Liu J,Zhang J

更新日期：2019-02-19 00:00:00

abstract：:Two new products: 9,10-seco-1,3,5(10)-pregnatrien-3,17 a-dihydroxy-9,20-dione and 9,10-seco-1,3,5(10)-pregnatrien-3,17a,20-triol-9-one, have been isolated as 17 α-hydroxyprogesterone transformation products fromNocardia DSM 43298. The structures were established by spectroscopic methods. ...

journal_title：World journal of microbiology & biotechnology

authors： Choudhry S,Halos S,Krischenowski D,Schmeda-Hirschmann G

更新日期：1993-01-01 00:00:00

abstract：:Rice bran was superior to other proteinaceous substrates for protease production by Rhizopus oligosporus ACM 145F in solid-state fermentation. Maximum protease yield was after 72 h. The optimal initial moisture content was 47% (a w=0.97). Dried, ground and resuspended fermented rice was the most pratical and effective...

journal_title：World journal of microbiology & biotechnology

authors： Ikasari L,Mitchell DA

更新日期：1994-05-01 00:00:00

abstract：:The experiment was conducted in three model drinking water distribution systems (DWDSs) made of unplasticized polyvinyl chloride (PVC), silane cross-linked polyethylene (PEX) and high density polyethylene (HDPE) pipes to which tap water was introduced. After 2 years of system operation, microbial communities in the DW...

journal_title：World journal of microbiology & biotechnology

authors： Rożej A,Cydzik-Kwiatkowska A,Kowalska B,Kowalski D

更新日期：2015-01-01 00:00:00

abstract：:The economics of bioflocculant production is coupled with the use of a low-cost substrate at appropriate culture conditions. The use of a waste substrate for this purpose offers an additional treatment measure to mitigate environmental pollution. We investigated the growth of Aspergillus flavus and its bioflocculant y...

journal_title：World journal of microbiology & biotechnology

authors： Mohammed JN,Wan Dagang WRZ

更新日期：2019-07-22 00:00:00

abstract：:Polychlorinated biphenyls (PCBs) are typical lasting organic pollutants. Persistence and recalcitrance to biodegradation of PCBs have hampered the transformation of PCB congeners from the environment. Biological transformation of polychlorinated biphenyls could take place through anaerobic dechlorination, aerobic micr...

journal_title：World journal of microbiology & biotechnology

authors： Xiang Y,Xing Z,Liu J,Qin W,Huang X

更新日期：2020-08-30 00:00:00

abstract：:Polyhydroxyalkanoates (PHAs) are a class of high-molecular-weight polyesters made from hydroxy fatty acid monomers. PHAs produced by microorganisms have diverse structures, variable physical properties, and good biodegradability. They exhibit similar physical properties to petroleum-based plastics but are much more en...

journal_title：World journal of microbiology & biotechnology

authors： Ai M,Zhu Y,Jia X

更新日期：2021-01-04 00:00:00

abstract：:The biomass degrading enzymatic potential of 101 thermophilic bacterial strains isolated from a volcanic environment (Santorini, Aegean Sea, Greece) was assessed. 80 % of the strains showed xylanolytic activity in Congo Red plates, while only eight could simultaneously hydrolyze cellulose. Fifteen isolates were select...

journal_title：World journal of microbiology & biotechnology

authors： Stathopoulou PM,Galanopoulou AP,Anasontzis GE,Karagouni AD,Hatzinikolaou DG

更新日期：2012-09-01 00:00:00

abstract：:Iron-oxidizing bacteria (FeOB) refers to a group of bacteria with the ability to exchange and accumulate divalent iron dissolved in water as trivalent iron inside and outside the bacterial cell. Most FeOB belong the largest bacterial phylum, Proteobacteria. Within this phylum, FeOB with varying physiology with regards...

journal_title：World journal of microbiology & biotechnology

authors： Makita H

更新日期：2018-07-04 00:00:00

abstract：:Forty-four strains of Aspergillus, Penicillium, Fusarium, Trichoderma and Rhizopus were grown on a liquid medium containing glucose and cassava-root extract. All of the Aspergillus and Fusarium strains, eight out of 10 Penicillium strains and three of seven Trichoderma strains showed linamarase activity. No such activ...

journal_title：World journal of microbiology & biotechnology

authors： Yeoh HH,Tan TK,Loh CM

更新日期：1995-11-01 00:00:00

abstract：:Anaerobic degradation of organic matter follows similar pathways in digesters and anaerobic freshwater sediments. The responsible microorganisms are linked in a complex food web, where short chain fatty acids and H2 are important intermediates. Degradation of short-chain fatty acids is endothermic under standard condi...

journal_title：World journal of microbiology & biotechnology

authors： Westermann P

更新日期：1996-09-01 00:00:00

abstract：:The aim of this study was to investigate the space mutagenesis of genetically engineered bacteria expressing recombinant human interferon α1b. The genetically engineered bacteria expressing the recombinant interferon α1b were sent into outer space on the Chinese Shenzhou VIII spacecraft. After the 17 day space flight,...

journal_title：World journal of microbiology & biotechnology

authors： Wang J,Liu C,Liu J,Fang X,Xu C,Guo Y,Chang D,Su L

更新日期：2014-03-01 00:00:00

abstract：:Iron deficiency ends up into several unavoidable consequences including damaging oxidative stress in cyanobacteria. NtcA is a global nitrogen regulator controls wide range of metabolisms in addition to regulation of nitrogen metabolism. In present communication, NtcA based regulation of iron homeostasis, ROS productio...

journal_title：World journal of microbiology & biotechnology

authors： Kaushik MS,Srivastava M,Singh A,Mishra AK

更新日期：2017-08-01 00:00:00

abstract：:The diastatic power of four 'improved' Nigerian sorghum cultivars was produced principally by α-amylolytic activity, unlike that of Nigerian Proctor barley which came principally from β-amylolytic activity. Free amino nitrogen levels and extracts of the sorghums were higher than those of barley when the sorghum was ma...

journal_title：World journal of microbiology & biotechnology

authors： Etokakpan OU

更新日期：1992-05-01 00:00:00

abstract：:Although the use of degrading-bacteria is one of the most efficient methods for the bioremediation of polluted sites, detection, selection and proliferation of the most efficient and competing bacteria is still a challenge. The objective of this multi-stage research was to investigate the effects of the selected bacte...

journal_title：World journal of microbiology & biotechnology

authors： Naeim AH,Baharlouei J,Ataabadi M

更新日期：2020-11-09 00:00:00

abstract：:We describe a novel method for the real-time estimation of the accretion of blomass during the solid-substrate tempe fermentation of soy beans, lupins and quinoa by Rhizopus oligosporus Salto. The method is based on measurements of the dielectric permittivity at radio-frequencies, using a four-terminal instrument (the...

journal_title：World journal of microbiology & biotechnology

authors： Davey CL,Peñaloza W,Kell DB,Hedger JN

更新日期：1991-03-01 00:00:00

abstract：:An analytical procedure has been developed for at-line (fast off-line) monitoring of 4 key parameters including nisin titer (NT), the concentration of reducing sugars, cell concentration and pH during a nisin fermentation process. This procedure is based on near infrared (NIR) spectroscopy and Partial Least Squares (P...

journal_title：World journal of microbiology & biotechnology

authors： Guo WL,Du YP,Zhou YC,Yang S,Lu JH,Zhao HY,Wang Y,Teng LR

更新日期：2012-03-01 00:00:00

abstract：:The apsA and apsB genes encoding family M1 aminopeptidases were identified in the industrial fungus Aspergillus oryzae. The apsB was transcriptionally up-regulated up to 2.5-fold in response to the deprivation of nitrogen or carbon sources in growth media, while up-regulation of apsA was less significant. The encoded ...

journal_title：World journal of microbiology & biotechnology

authors： Marui J,Matsushita-Morita M,Tada S,Hattori R,Suzuki S,Amano H,Ishida H,Yamagata Y,Takeuchi M,Kusumoto K

更新日期：2012-08-01 00:00:00

abstract：:Basidiocarp of Agaricus blazei (=Agaricus brasiliensis; =Agaricus subrufescens) is used as teas or capsules due to its antineoplastic effect but there are few reports of using mycelium for this purpose. The objective of this study was to evaluate the antineoplastic activity on sarcoma 180 cells implanted in mice of tw...

journal_title：World journal of microbiology & biotechnology

authors： Bertéli MB,Umeo SH,Bertéli A,do Valle JS,Linde GA,Colauto NB

更新日期：2014-08-01 00:00:00

abstract：:Biohydrogen is considered as one of the most promising energy alternatives considering the climate and energy crisis. The dark fermentative hydrogen production from xylose at extreme thermophilic condition (70 °C) using mixed culture was conducted in this study. The effects of initial pH values (ranged from 5.0 to 10....

journal_title：World journal of microbiology & biotechnology

authors： Qiu C,Shi P,Xiao S,Sun L

更新日期：2017-01-01 00:00:00

abstract：:Cr(VI) is a highly toxic metal produced by anthropogenic activity which may impact the environment, affecting plants and animals. In plants, chromium both as Cr(III) or Cr(VI) can be absorbed by roots, is poorly translocated and affects negatively plant growth. Plants used in phytoremediation need to cope with chromiu...

journal_title：World journal of microbiology & biotechnology

authors： Francisco R,Branco R,Schwab S,Baldani JI,Morais PV

更新日期：2017-12-18 00:00:00

abstract：:To simplify industrial mushroom cultivation, we introduced a bacterial Pseudomonas sp. UW4 acdS gene, encoding 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase (AcdS), into fungus Agaricus bisporus. Transformant A. bisporus-acdS14 cased with sterilized-vermiculite generated primordia 5 days sooner than wild-type ...

journal_title：World journal of microbiology & biotechnology

authors： Zhang C,Zhang G,Wen Y,Li T,Gao Y,Meng F,Qiu L,Ai Y

更新日期：2019-10-21 00:00:00

abstract：:A chromosomal gene, required for nodule development on Phaseolus bean, was characterized from Rhizobium etli strain TAL182. MLC640 is a Tn5 insertion mutant of TAL182 which shows decreased motility in soft TY agar and is defective in nodule development. The site of Tn5 insertion in MLC640 mapped to a 3.6-kb EcoRI chro...

journal_title：World journal of microbiology & biotechnology

authors： Pooyan S,George ML,Borthakur D

更新日期：1994-09-01 00:00:00

abstract：:In the two-component system of NisRK from Lactococcus lactis, the production of nisin is affected by transmembrane NisK and activation of intracellular NisR. The transcription of nisin structural genes can be induced by derivatives of nisin. NisR activation leads to the activation of nisA/Z transcription, which encode...

journal_title：World journal of microbiology & biotechnology

authors： Heidari S,Hamedi J,Olad G,Amani J,Rastegar Shariat Panahi M,Najafi A

更新日期：2019-10-25 00:00:00

abstract：:Pesticides (Brominal, Cuprosan and Fenvalerate) at 10 and 50 ppm suppressed growth, respiration and nitrogenase activity ofAzotobacter chroococcum, Azospirillum brasilense andAzospirillum lipoferum. The inhibitory effect on respiration ofAsm. lipoferum was most pronounced after 3 and 4 days. ...

journal_title：World journal of microbiology & biotechnology

authors： Omar SA,Abd-Alla MH

更新日期：1992-05-01 00:00:00

abstract：:Onion production in Argentina generates a significant amount of waste. Finding an effective method to recycle it is a matter of environmental concern. Among organic waste reuse techniques, anaerobic digestion could be a valuable alternative to current practices. Substrate inoculation with appropriate bacterial strains...

journal_title：World journal of microbiology & biotechnology

authors： Rinland ME,Gómez MA

更新日期：2015-03-01 00:00:00