نتایج جستجو برای: saccharomyces cerevisiae exoression vector
تعداد نتایج: 238576 فیلتر نتایج به سال:
the genome of hb v virus of serotype ayw cloned in pbr322 and expression shuttle vector p yes2 were used for construction of the hbsag chimeric genes and their expression in saccharomyces cerevisiae. two recombinant plasmids were constructed. one of them contained the coding sequences for the major polypeptide of surface antigen. another construct carried the major polypeptide with the pre-s2 a...
this experiment was conducted to investigate the effect of different levels of saccharomyces cerevisiae cell wall on performance, carcass traits and intestinal morphology in broilers. in this experiment 240 ross- 308 broilers were used in 4 treatments, 5 replicates and 12 bird in each replicate in a completely randomized design for 42 days. the treatments included: 1) control group (without sac...
خمیرترش، یک قطعه خمیر از پخت قبلی میباشد که برای تولید نان با آرد، نمک و آب مخلوط و سپس ذخیره میشود. میکروارگانیسمهای اصلی خمیرترش، باکتریهای اسید لاکتیک و مخمرها هستند که نقش مهمی در بهبود طعم، بافت و ماندگاری فراوردههای نانوایی ایفا میکنند. در تحقیق حاضر، 7 نمونه خمیرترش از ییلاقهای ماسوله، همدان، نطنز، کیاسر، آمل، فومن جمعآوری و جهت انجام تحقیق استفاده گردید. باکتریهای اسید لاکتیک و...
in view of the increase in saccharomyces cerevisiae mannan content, the culture condition for s.cerevisiae were optimized in this study. the influence of culture condition such as original ph, inoculum size, and temperature on mannan production were evaluated using response surface methodology. the mathematical model was established by the quadratic rotary combination design. with the order of ...
Background and Objective: According to definition of probiotics by WHO/FAO that is “Live microorganisms which, when present in sufficient amount, confer beneficial effects to the host”. Saccharomyces cerevisiae is the first non-pathogenic yeast which is known as a probiotic for humans that its helpful effects for humankind has been proved. Pseudomonas aeruginosa is one of the most ...
several strains of saccharomyces cerevisiae were isolated from different sources. these strains were under taken for ethanol tolerance analysis and growth under stress condition. exponential phase to various concentrations of ethanol (2–26% v/v) for 1 h was used for isolation of resistant strains. viable cells were isolated and purified by inoculation of diluted samples on yeast extract peptone...
background: glutathione (gsh) is a non-protein thiol compound, which plays an important role in the response to oxidative stress and nutritional stress. the aim of this study was to isolate indigenous s. cerevisiae strains capable of effectively produce gsh. methods: one hundred-twenty sweet fruit samples were collected. the strains were isolated on yeast glucose chloramphenicol (ygc) agar medi...
Background & Objective: Citrinin mycotoxin is produced by filamentous toxin producing fungi. Saccharomyces cerevisiae yeast has the ability to bind mycotoxins to its cell wall and thus reduce its toxicity. The aim of this study was to determine the amount of Citrinin mycotoxin and its reduction in wheat flour by Saccharomyces cerevisiae. Method: In this study, 15 samples of wheat flour were...
The aim of this study was to investigate the effects of saccharomyces cerevisiae yeast and butyrate monoglycerides on the performance, blood parameters and nutrients digestibility in suckling Holstein calves. For this experiment, 32 newly-born Holstein calves (average age 1-8 days; average weight 38±1 kg) were used in a completely randomized design with 2×2 factorial arrangement, 4 treatmen...
In this researchsaccharomyces cerevisiae (baker’s yeast) was used as a cheap, readily accessible, selective, efficient, and green bio-catalyst in a chemo selective reduction of carbonyl group to hydroxyl group. In this green procedure three substrates e.g. (3-(3-nitrophenyl)aziridin-2-yl)-1-phenyl-methanone, pyruvate ester, and 2-acetyl-γ-butyrolactone were r...
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