Production of cellulolytic and xylanolytic enzymes by an Arthrographis species.

abstract：:In this study, we developed a novel technique for preparing polyvinyl alcohol (PVA) hydrogel as an immobilizing matrix by the addition of sodium bicarbonate. This resulted in an increase in the specific surface area of PVA_sodium bicarbonate (PVA_SB) hydrogel beads to 65.23 m(2) g(-1) hydrogel beads, which was approxi...

journal_title：World journal of microbiology & biotechnology

authors： Qiao S,Duan X,Zhou J,Cheng Y,Bhatti Z

更新日期：2014-07-01 00:00:00

abstract：:Catechol 2,3-oxygenase was produced by Escherichia coli, harbouring the recombinant plasmid pBH100 which contained the pheB gene cloned from phenol-degrading Pseudomonas putida BH, and was applied for the determination of catechol in the liquor. E. coli JM103 (pBH100) and C600 (pBH100) showed, respectively, about 5 an...

journal_title：World journal of microbiology & biotechnology

authors： Fujita M,Kamiya T,Ike M,Kawagoshi Y,Shinohara N

更新日期：1991-05-01 00:00:00

abstract：:The induction of laccase isoforms in Trametes versicolor HEMIM-9 by aqueous extracts (AE) from softwood and hardwood was studied. Samples of sawdust of Pinus sp., Cedrela sp., and Quercus sp. were boiled in water to obtain AE. Different volumes of each AE were added to fungal cultures to determine the amount of AE nee...

journal_title：World journal of microbiology & biotechnology

authors： Bertrand B,Martínez-Morales F,Tinoco R,Rojas-Trejo S,Serrano-Carreón L,Trejo-Hernández MR

更新日期：2014-01-01 00:00:00

abstract：:Elicitation is an important strategy to improve production of secondary metabolites in vitro. Artemisinic acid was studied as a novel elicitor to enhance the yield of terpenoid indole alkaloids in the present paper. Our results demonstrated that the concentrations of vindoline and vinblastine were increased by sixfold...

journal_title：World journal of microbiology & biotechnology

authors： Liu J,Zhu J,Tang L,Wen W,Lv S,Yu R

更新日期：2014-01-01 00:00:00

abstract：:Yeasts, widely distributed across the Earth, have successfully colonized cold environments despite their adverse conditions for life. Lower eukaryotes play important ecological roles, contributing to nutrient recycling and organic matter mineralization. Yeasts have developed physiological adaptations to optimize their...

journal_title：World journal of microbiology & biotechnology

authors： Alcaíno J,Cifuentes V,Baeza M

更新日期：2015-10-01 00:00:00

abstract：:Prebiotic Fructooligosaccharides (FOS) escape metabolism in upper GI tract undergo microbial metabolism in colon and thereby influence the nature, type and number of intestinal microbiota to improve host's health. The present study focuses on the ability of Lactobacillus plantarum CFR 2194 to utilize FOS as a selectiv...

journal_title：World journal of microbiology & biotechnology

authors： Arenahalli Ningegowda M,Siddalingaiya Gurudutt P

更新日期：2012-03-01 00:00:00

abstract：:A rapid, simple and sensitive method for detection of ferulic and p-coumaric acids using HPLC has been developed which can be used to determine the respective phenolic acid esterase activities of microorganisms. Prior concentration, purification or derivatization of the samples are not required. As little as 0.5 mg fe...

journal_title：World journal of microbiology & biotechnology

authors： O'Neill FH,Christov LP,Botes PJ,Prior BA

更新日期：1996-05-01 00:00:00

abstract：:The effects of different alkyl chain lengths of ionic liquids 1-ethyl-, 1-butyl- and 1-hexyl-3-methylimidazolium chloride, on the catalytic activity, thermal stability and deactivation kinetics of horseradish peroxidase were studied in the temperature range of 45-85 °C. The presence of 1-ethyl- and 1-butyl-ionic liqui...

journal_title：World journal of microbiology & biotechnology

authors： Machado MF,Queirós RP,Santos MD,Fidalgo LG,Delgadillo I,Saraiva JA

更新日期：2014-02-01 00:00:00

abstract：:A laboratory upflow anaerobic sludge blanket reactor, seeded with fine, suspended, bacterial floc with 1.76 g volatile suspended solids/l, was used to treat synthetic methanolic waste. After 180 days of continuous peration, granular sludge with discrete granules of 1 to 2 mm diam. was formed, with 52 g volatile suspen...

journal_title：World journal of microbiology & biotechnology

authors： Bhatti ZI,Furukawa K,Fujita M

更新日期：1995-11-01 00:00:00

abstract：:The cloning and expression of toxic proteins in bacteria have posed a great challenge because of the leaky expression in inducible expression systems. Using artificial gene synthesis and clone screening methods, we identified a mutant T5 promoter, which significantly reduced leaky expression of lac operator. The mutan...

journal_title：World journal of microbiology & biotechnology

authors： Guo J,Jia R

更新日期：2014-05-01 00:00:00

abstract：:The competitiveness of fourRhizobium sp. strains infectingAcacia senegal and originating in the Sudan was assessed in a growth chamber experiment using Sudanese soil, WhenAcacia senegal was inoculated with pure cultures of the strains, there were statistically significant differences among the strains with respect to ...

journal_title：World journal of microbiology & biotechnology

authors： Zhang X,Karsisto M,Lindström K

更新日期：1992-03-01 00:00:00

abstract：:Escherichia coli (E. coli) consists of commensal (ComEC) and diarrhoeagenic (DEC) groups. ComEC are detected using traditional culture methods. Conformational steps are performed after culturing if it is required to test for the presence of DEC, increasing cost and time in obtaining the results. The aim of this study ...

journal_title：World journal of microbiology & biotechnology

authors： Omar KB,Barnard TG

更新日期：2014-10-01 00:00:00

abstract：:Lactic acid bacteria (LAB) isolated from different sources (dairy products, fruits, fresh and fermented vegetables, fermented cereals) were screened for antimicrobial activity against other bacteria, including potential pathogens and food spoiling bacteria. Six strains have been shown to produce bacteriocins: Lactococ...

journal_title：World journal of microbiology & biotechnology

authors： Grosu-Tudor SS,Stancu MM,Pelinescu D,Zamfir M

更新日期：2014-09-01 00:00:00

abstract：:Mercury-resistance genes were detected byin situ hybridization using new synthetic oligonucleotide probes specific formerA andmerB genes according to the published sequences of the corresponding enzymes. These DNA probes were used for the detection of specific mercury-resistant microorganisms isolated from the Rhine R...

journal_title：World journal of microbiology & biotechnology

authors： Mirgain I,Hagnere C,Green GA,Harf C,Monteil H

更新日期：1992-01-01 00:00:00

abstract：:Alkaliphilic halotolerant cyanobacterium Aphanothece halophytica showed optimal growth in the medium containing 0.5 M NaCl. The increase of exogenously added glycine to the medium up to 10 mM significantly promoted cell growth under both normal (0.5 M NaCl) and salt stress (2.0 M NaCl) conditions. Salt stress imposed ...

journal_title：World journal of microbiology & biotechnology

authors： Bualuang A,Incharoensakdi A

更新日期：2015-02-01 00:00:00

abstract：:The bioleachings of chalcopyrite ore were compared after inoculating different cultures enriched from the original acid mine drainage sample. The results showed that the higher bioleaching performance was achieved for inoculation with the enrichment D (0.5 % S, 2 % iron and 1 % chalcopyrite) compared to other enrichme...

journal_title：World journal of microbiology & biotechnology

authors： Xia L,Uribe P,Liu X,Yu C,Chai L,Liu J,Qiu W,Qiu G

更新日期：2013-02-01 00:00:00

abstract：:A key constraint in successfully obtaining an effective inoculant is overcoming difficulties in formulating a viable and user-friendly final product and maintaining the microbial cells in a competent state. Co-cultures of rhizobia and PGPR (Plant Growth Promoting Rhizobacteria) are a logical next subject for formulati...

journal_title：World journal of microbiology & biotechnology

authors： Atieno M,Herrmann L,Okalebo R,Lesueur D

更新日期：2012-07-01 00:00:00

abstract：:Bacillus amyloliquefaciens strain WF02, isolated from soil collected at Wufeng Mountain, Taiwan, has siderophore-producing ability and in vitro antagonistic activity against bacterial wilt pathogen. To determine the impact of plant genotype on biocontrol effectiveness, we treated soil with this strain before infecting...

journal_title：World journal of microbiology & biotechnology

authors： Huang CN,Lin CP,Hsieh FC,Lee SK,Cheng KC,Liu CT

更新日期：2016-11-01 00:00:00

abstract：:A proprietary bacterial strain (Pet 1006) produced biosurfactants when grown on both glucose and an immiscible hydrocarbon as carbon sources. Pilot-plant-scale (1500 I) production gave, on repeated batch runs, 2 tonnes of culture broth containing active biosurfactant. The product was used as a substitute for chemical ...

journal_title：World journal of microbiology & biotechnology

authors： Banat IM,Samarah N,Murad M,Horne R,Banerjee S

更新日期：1991-01-01 00:00:00

abstract：:An efficient expression-secretion system for heterologous protein production in food-grade hosts, Lactobacillus plantarum and Bacillus subtilis, is still required to broaden their applications. The optimal signal peptide compatible with both the desired protein and the target host is important for the system. Here, we...

journal_title：World journal of microbiology & biotechnology

authors： Promchai R,Visessanguan W,Luxananil P

更新日期：2020-09-19 00:00:00

abstract：:Bacillus coagulans, when grown on casein at 20°C, produced an inducible, metalloprotease of 28 kDa at 1.6 U/mg cell protein. (NH4)2SO4 at 2 g/l decreased enzyme production irrespective of carbon source. ...

journal_title：World journal of microbiology & biotechnology

authors： Ram MS,Singh L,Alam SI,Aggarwal MK

更新日期：1994-05-01 00:00:00

abstract：:The present investigation entails the immobilisation and characterisation of Escherichia coli MO1-derived carbonic anhydrase (CA) and its influence on the transformation of CO₂ to CaCO₃. CA was purified from MO1 using a combination of Sephadex G-75 and DEAE cellulose column chromatography, resulting in 4.64-fold purif...

journal_title：World journal of microbiology & biotechnology

authors： Oviya M,Sukumaran V,Giri SS

更新日期：2013-10-01 00:00:00

abstract：:One strain of algicidal bacterium, named as S088, was isolated from the intestine of healthy sea cucumbers (Stichopus horrens) in the South China Sea. Based on the analysis of its biochemical characteristics and 16S rDNA gene sequence, S088 was identified as Bowmanella denitrificans. Importantly, the algicidal activit...

journal_title：World journal of microbiology & biotechnology

authors： Jiang X,Ren C,Hu C,Zhao Z

更新日期：2014-02-01 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：:In this study, fennel oil was isolated by hydrodistillation, and the chemical composition was determined by gas chromatography/mass spectral analysis. The antimicrobial activity of fennel oil against Staphylococcus aureus was evaluated by broth microdilution. A haemolysis assay, tumour necrosis factor (TNF) release as...

journal_title：World journal of microbiology & biotechnology

authors： Qiu J,Li H,Su H,Dong J,Luo M,Wang J,Leng B,Deng Y,Liu J,Deng X

更新日期：2012-04-01 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 abundance of culturable heterotropic bacteria studied on and according to depth levels and seasons in the Gulf of Antalya. Environmental factors were compared regarding culturable heterotrophic bacteria abundance and diversities of bacteria. During the study period (between August 2009 and April 2010, seasonally i...

journal_title：World journal of microbiology & biotechnology

authors： Çardak M,Özgür Özbek E,Kebapçioğlu T

更新日期：2015-04-01 00:00:00

abstract：:Laccase enzymes produced by both soil bacteria and fungi play important roles in refractory organic matter turnover in terrestrial ecosystems. We investigated the abundance and diversity of fungal laccase genes and bacterial laccase-like genes in soil from subtropical arable lands, and identified which microbial group...

journal_title：World journal of microbiology & biotechnology

authors： Feng S,Su Y,Dong M,He X,Kumaresan D,O'Donnell AG,Wu J,Chen X

更新日期：2015-12-01 00:00:00

abstract：:A strain of Aspergillus niger isolated from sugarcane fields, produced an extracellular transfructosylase in the culture medium. Sucrose and raffinose induced the production to the enzyme, which was purified by 138-fold. The optimum pH for activity and stability were 5.5 and 6.5, respectively. Its optimum temperature ...

journal_title：World journal of microbiology & biotechnology

authors： Park YK,Almeida MM

更新日期：1991-05-01 00:00:00

abstract：:Ginger (Zingiber officinale) is cultivated commercially in most parts of the world especially in India for its culinary and medicinal applications. One of the major challenges that limit the yield of ginger is rhizome rot disease caused by organisms including Pythium myriotylum. A feasible ecofriendly method is yet to...

journal_title：World journal of microbiology & biotechnology

authors： Jasim B,Anisha C,Rohini S,Kurian JM,Jyothis M,Radhakrishnan EK

更新日期：2014-05-01 00:00:00