Results 241 to 250 of about 19,074 (293)
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Fed-batch cultivation of Wautersia eutropha
Bioresource Technology, 2008Batch kinetics of polyhydroxybutyrate (PHB) synthesis in a bioreactor under controlled conditions of pH and dissolved oxygen gave a biomass of 14 g l(-1) with a PHB concentration of 6.1 g l(-1) in 60 h. The data of the batch kinetics was used to develop a mathematical model, which was then extrapolated to fed-batch by incorporating the dilution due to ...
A K Srivastava
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Simple fed-batch technique for high cell density cultivation of Escherichia coli
Journal of Biotechnology, 1995A simple fed-batch process for high cell density cultivation of Escherichia coli TG1 was developed. A pre-determined feeding strategy was chosen to maintain carbon-limited growth using a defined medium. Feeding was carried out to increase the cell mass concentration exponentially in the bioreactor controlling biomass accumulation at growth rates which ...
Ursula Rinas, Wolf-Dieter Deckwer
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Fed-batch cultivation of Saccharomyces cerevisiae on lignocellulosic hydrolyzate
Biotechnology Letters, 2006Saccharomyces cerevisiae grows very poorly in dilute acid lignocellulosic hydrolyzate during the anaerobic fermentation for fuel ethanol production. However, yeast cells grown aerobically on the hydrolyzate have increased tolerance for the hydrolyzate.
Anneli, Petersson, Gunnar, Lidén
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Arthrospira platensis cultivation by fed-batch feeding of ammonium and urea
, 2009 This work deals with the cultivation in a tubular photobioreactor of the cyanobacterium Arthrospira platensis by fed-batch pulse-feeding a medium where the traditional nitrogen source (nitrate) was substituted by cheaper sources (ammonium and urea) at increasing inlet concentration.
LODI, ALESSANDRA +4 more
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Inclusion Body Production in Fed-Batch and Continuous Cultivation
2023Various fermentation strategies in industrial biotechnology are applied to produce recombinant target proteins using Escherichia coli. These proteins are often expressed as inclusion bodies (IBs), resulting in a high purity, high stability, and high product titers. In state-of-the-art fed-batch processes, product formation takes place in a short period
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Xylitol production in repeated fed batch cultivation
World Journal of Microbiology and Biotechnology, 1997The ability of Candida parapsilosis to produce xylitol was tested using successive substrate supplies, and the importance of the amount of viable cells in enhancing the conversion rate was demonstrated. The suitability of this yeast for the production of xylitol was investigated in repeated fed-batch cultivation, using pure xylose or mixtures of xylose
S.A. Furlan +2 more
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Profit optimization for mycelia fed-batch cultivation
Journal of Biotechnology, 1997The goal of bioprocess-control and-scheduling is to maximize the profit of the whole process. Maximizing of the profit implies the optimal coordination among the subindices such as productivity, yield and quality of the product. These three subindices often interact with each other since the manipulating variables may influence them simultaneously ...
J.Q. Yuan +3 more
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Fed‐batch cultivation of Cellulomonas on sugarcane bagasse pith
Biotechnology and Bioengineering, 1985AbstractA high biomass concentration (19.9 g/L) was obtained with the fed‐batch cultivation of Cellulomonas on pretreated sugarcane bagasse pith. Similar results in biomass concentration, yield, and substrated consumption were obtained with the discontinuous feed of bagasses as with discontinuous feed supplemented with a partial continuous addition of ...
H, Rodríguez, A, Enríquez
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Fed-Batch Cultivation of Methanobacterium formicicum and its Fluorometric Monitoring
Acta Biotechnologica, 1989AbstractFed‐batch cultivation of Methanobacterium formicicum Z‐281 was performed under substrate limiting conditions. Specific rate of culture growth amounted to 0.041 h−1, cell yield related to substrate was 0.6 mg proteine/mM formate. Significant increase of coenzyme F420 content in cells depending on time of cultivation was observed. Increase of the
P. Kuschk, V. V. Kevbrin
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Fed-batch cultivation of Bordetella pertussis: Metabolism and Pertussis Toxin production
Biologicals, 2006The production of acellular pertussis in comparison with whole cell pertussis vaccines demands 5-25 times the amount of Bordetella pertussis' virulence factors, such as Pertussis Toxin (PT), to produce the same number of vaccine doses. An increase in the volumetric productivity by employing fed-batch rather than the currently used batch cultivations of
Thalen, M. +8 more
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