نتایج جستجو برای: kinetics of fermentation

تعداد نتایج: 21171866  

Journal: :iranian journal of microbiology 0
seyedvesal hosseini chemical engineering department, islamic azad university, shah rood branch, shah rood, iran. zahra saffari pilot nanobiotechnology department, pasteur institute of iran, tehran 13164, iran. ali farhanghi pilot nanobiotechnology department, pasteur institute of iran, tehran 13164, iran. seyedmohammad atyabi pilot nanobiotechnology department, pasteur institute of iran, tehran 13164, iran. dariush norouzian pilot nanobiotechnology department, pasteur institute of iran, tehran 13164, iran.

background and objectives: proteases are a group of enzymes that catalyze the degradation of proteins resulting in the pro- duction of their amino acid constituents. they are the most important group of industrial enzymes which account for about 60% of total enzymes in the market and produced mainly by microorganisms. the attempts were made to study the kinetic parameters of protease produced b...

The aim of this study was the use of fish waste hydrolysate (FWH) as a substrate for alkaline protease production using isolated Bacillus sp. in a batch system. Then the fermentation kinetics of enzyme production was studied. The results show that with the addition of FWH to the fermentation medium with a final concentration of 4% (optimal concentration), alkaline protease value reached a maxim...

Journal: :veterinary research forum 2015
saman lashkari akbar taghizadeh

the present experiment was carried out to determine the digestion kinetics of carbohydrate fractions of citrus by-products. grapefruit pulp (gp), lemon pulp (le), lime pulp (li) and orange pulp (op) were the test feed. digestion kinetic of whole citrus by-products and neutral detergent fiber (ndf) fraction and acid detergent fiber (adf) fractions of citrus by-products were measured using the in...

Journal: :iranian journal of applied animal science 2015
n. soleimani m. malecky h. aliarabi p. zamani m. dehghan-banadaky

the aim of the current study was to evaluate the replacement effect of soybean meal (sbm) at different levels (0 as d1, 33 as d2, 67 as d3 and 100% as d4 based on crude protein (cp) content) by guar meal (gm) on ruminal gas production kinetics, ruminal digestibility and fermentation characteristics of a fattening diet for lambs. three experiments were conducted. the first experiment of 144-h in...

The present experiment was carried out to determine the digestion kinetics of carbohydrate fractions of citrus by-products. Grapefruit pulp (GP), lemon pulp (LE), lime pulp (LI) and orange pulp (OP) were the test feed. Digestion kinetic of whole citrus by-products and neutral detergent fiber (NDF) fraction and acid detergent fiber (ADF) fractions of citrus by-products were measured using the <e...

The integration of batch fermentation and membrane-based pervaporation process in a membrane bioreactor (MBR) was studied to enhance bioethanol production compared to conventional batch fermentation operated at optimum condition. For this purpose, a laboratory-scale MBR system was designed and fabricated. Dense hydrophobic Polydimethylsiloxane (PDMS) membrane was used for pervaporation. For fer...

H. Aliarabi M. Dehghan-Banadaky M. Malecky, N. Soleimani P. Zamani,

The aim of the current study was to evaluate the replacement effect of soybean meal (SBM) at different levels (0 as D1, 33 as D2, 67 as D3 and 100% as D4 based on crude protein (CP) content) by guar meal (GM) on ruminal gas production kinetics, ruminal digestibility and fermentation characteristics of a fattening diet for lambs. Three experiments were conducted. The first experiment of 144-h in...

Journal: :iranian journal of science and technology (sciences) 2004
f. tabandeh

the batch fermentation production of human growth hormone (hgh) was studied in a newrecombinant escherichia coli. the effect of different levels of dissolved oxygen and glucoseconcentration on cell density and substrate utilization were evaluated. the results indicated that theoptimum level of dissolved oxygen was 25% of air saturation. the specific growth rate reached amaximum for an optimal g...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1389

run-out-table (rot) is located between last finishing stand and down coiler in a hot strip mill. as the hot steel strip passes from rot, water jets impact on it from top and bottom and strip temperature decreases approximately from 800-950 °c to 500-750°c. the temperature history that strip experience while passing through rot affects significantly the metallurgical and mechanical properties, s...

Journal: :Journal of Biochemical and Microbiological Technology and Engineering 1959

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