Results 251 to 260 of about 168,995 (306)
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Batch and fed-batch cultures for the treatment of whey with mixed yeast cultures
Process Biochemistry, 2000Abstract ‘Lactic yeasts’ produce some extracellular metabolites, as well as biomass, when cultivated in whey. Mixed cultures are able to use several sources of carbon simultaneously and therefore the use of mixed yeast cultures is proposed in order to reduce the whey COD and increase the biomass yield.
Eliseo Cristiani-Urbina +5 more
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Improve Production of Pullulanase of Bacillus subtilis in Batch and Fed-Batch Cultures
Applied Biochemistry and Biotechnology, 2020Pullulanase is a debranching enzyme that cleaves explicitly α-1,6 glycosidic bonds, which is widely used in starch saccharification, production of glucose, maltose, and bioethanol. The thermal-resistant pullulanase is isolated from a variety of microorganisms; however, the lack of industrial production of pullulanase has hindered the transformation of ...
Fanqiang Meng +5 more
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Fermentation kinetics of recombinant yeast in batch and fed‐batch cultures
Biotechnology and Bioengineering, 1992AbstractFed‐batch cultures of recombinant microorganisms have attracted attention as they can separate cell growth stage from cloned‐gene expression phase during fermentations. In this work, the effect of different glucose feeding strategies on cell growth and cloned gene expression was studied during aerobic fed‐batch fermentations of recombinant ...
A, Patkar, J H, Seo
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Growth of Photorhabdus luminescens in batch and glucose fed-batch culture
Applied Microbiology and Biotechnology, 2000Photorhabdus luminescens, a bacterial symbiont of entomopathogenic biocontrol nematodes, was grown in batch and glucose fed-batch culture. The cell density, bioluminescence, production of antibiotic substances, number of cells with inclusion bodies, glucose concentration and oxygen uptake rate were recorded.
T, Jeffke +4 more
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Benzene Transformation in Nitrifying Batch Cultures
Biotechnology Progress, 2003The effect of benzene on the nitrifying activity of a sludge produced in steady-state nitrification was evaluated in batch cultures. Benzene at 10 mg/L inhibited nitrate formation by 53%, whereas at 5 mg/L there was no inhibition. For initial benzene concentrations of 0, 7, and 10 mg/L, the specific rates of NO(3)(-)-N production were 0.545 +/- 0.101 ...
A, Zepeda, A-C, Texier, J, Gomez
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Vancomycin production in batch and continuous culture
Biotechnology and Bioengineering, 2000Production of the glycopeptide antibiotic vancomycin by two Amycolatopsis orientalis strains was examined in batch shake flask culture in a semidefined medium with peptone as the nitrogen source. Different growth and production profiles were observed with the two strains; specific production (Y(p/x)) was threefold higher with strain ATCC 19795 than ...
J J, McIntyre, A T, Bull, A W, Bunch
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2013
Many, if not most, industrially important fermentation and bioreactor operations are carried out in fed-batch mode, producing a wide variety of products. In spite of this, there is no single book that deals with fed-batch operations. This is the first book that presents all the necessary background material regarding the 'what, why and how' of optimal ...
Henry C. Lim, Hwa Sung Shin
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Many, if not most, industrially important fermentation and bioreactor operations are carried out in fed-batch mode, producing a wide variety of products. In spite of this, there is no single book that deals with fed-batch operations. This is the first book that presents all the necessary background material regarding the 'what, why and how' of optimal ...
Henry C. Lim, Hwa Sung Shin
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Shear Sensitivity of Hybridoma Cells in Batch, Fed‐Batch, and Continuous Cultures
Biotechnology Progress, 1990AbstractPreviously, we observed that CRL‐8018 hybridoma cells were more sensitive to well‐defined viscometric shear during the lag and stationary phases than during the exponential phase of batch cultures. Some potential hypotheses for explaining the increase in shear sensitivity are (1) nutrient limitations that result in a decrease in production of ...
J F, Petersen +2 more
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Modeling of Overflow Metabolism in Batch and Fed-Batch Cultures of Escherichia coli
Biotechnology Progress, 1999A dynamic model of glucose overflow metabolism in batch and fed-batch cultivations of Escherichia coli W3110 under fully aerobic conditions is presented. Simulation based on the model describes cell growth, respiration, and acetate formation as well as acetate reconsumption during batch cultures, the transition of batch to fed-batch culture, and fed ...
B, Xu, M, Jahic, S O, Enfors
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2003
Batch culture involves the inoculation of a known volume or mass of cells into a volume of (normally) defined medium. Growth is allowed to proceed, and the resulting biomass is harvested at some stage during the growth cycle. Throughout the growth period, no additions are made to the media, with the exception of acid and alkali, if needed, for pH ...
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Batch culture involves the inoculation of a known volume or mass of cells into a volume of (normally) defined medium. Growth is allowed to proceed, and the resulting biomass is harvested at some stage during the growth cycle. Throughout the growth period, no additions are made to the media, with the exception of acid and alkali, if needed, for pH ...
openaire +2 more sources