Optimization of alcoholic fermentation using immobilized yeast cells in calcium alginate gel
نویسندگان
چکیده
منابع مشابه
Using fed-batch fermentation in very high gravity brewing: effects of Tween 80 and ergosterol supplementation on fermentation performance of immobilized yeast in calcium alginate gel
: In very high gravity brewing, fed-batch fermentation was carried out with Saccharomyces cerevisiae immobilized in calcium alginate gel. The specific gravity of initial wort and feeding medium originated from 55% malt and 45% maltose syrup adjunct was adjusted to 28oBrix and 41oBx, respectively. The effect of supplementation of mixture of Tween 80 and ergosterol to the initial wort or to the f...
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Until now it has not been possible to separate fermenting activity from living yeast cells; the following describes a procedure that solves this problem. One thousand grams of brewer’s yeast1 that had been cleaned as a prerequisite for the preparation of compressed yeast, but to which no potato starch had been added, is carefully mixed with the same weight of quartz sand2 and 250 g Kieselguhr. ...
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The strain Sphingomonas sp. GY2B is a high efficient phenanthrene-degrading strain isolated from crude oil contaminated soils that displays a broad-spectrum degradation ability towards PAHs and related aromatic compounds. This paper reports embedding immobilization of strain GY2B in calcium alginate gel beads and the rapid degradation of phenanthrene by the embedded strains. Results showed that...
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Yeast artificial chromosomes (YACs) are useful cloning vectors that have the capacity to carry large DNA inserts. The largest barrier to using such large DNA molecules in transformation experiments has been their physical instability in solution. We developed a new method of transforming yeast using chromosome-sized DNA. The method uses calcium alginate microbeads to immobilize high-density yea...
متن کاملKinetic Studies on Alcoholic Fermentation Under Substrate Inhibition Conditions Using a Bioreactor with Stirred Bed of Immobilized Yeast Cells
The studies on the alcoholic fermentation with immobilized S. cerevisiae cells on alginate using a bioreactor with stirred beds of biocatalysts indicated that the diffusion inside the biocatalyst particles attenuates or avoids the inhibitory effects, preserving the microbial activity. Using a mathematical model adequate for ethanol formation in heterogeneous systems the kinetic parameters V, KI...
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ژورنال
عنوان ژورنال: Acta Periodica Technologica
سال: 2015
ISSN: 1450-7188,2406-095X
DOI: 10.2298/apt1546207d