Saccharomyces cerevisiae mutants resistant to catabolite repression: use in cheese whey hydrolysate fermentation

Journal Article · Wed Sep 01 04:00:00 EDT 1982 · Appl. Environ. Microbiol.; (United States)

OSTI ID:6281731

Bailey, R B; Benitez, T; Woodward, A

Mutants of an industrial-type strain of Saccharomyces cerevisiae which rapidly and completely fermented equimolar mixtures of glucose and galactose to ethanol were isolated. These mutants fell into two general phenotypic classes based upon their fermentation kinetics and enzyme induction patterns. One class apparently specifically effects the utilization of galactose and allows sequential utilization of first glucose and then galactose in an anaerobic fermentation. The second class of mutants was resistant to general catabolite repression and produced maltase, invertase, and galactokinase in the presence of repressive levels of glucose. These mutants were completely dominant and appear to represent an as yet undescribed class of mutant. (Refs. 23).

• Research Organization: Biotechnology Branch, Solar Energy Research Inst, Golden, CO 80401
• OSTI ID: 6281731
• Journal Information: Appl. Environ. Microbiol.; (United States), Journal Name: Appl. Environ. Microbiol.; (United States) Vol. 44:3; ISSN AEMID
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
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59 BASIC BIOLOGICAL SCIENCES
ALCOHOLS
ALDEHYDES
BIOCONVERSION
BIOSYNTHESIS
CARBOHYDRATES
DATA
ETHANOL
EXPERIMENTAL DATA
FERMENTATION
FUNGI
GALACTOSE
GLUCOSE
HEXOSES
HYDROXY COMPOUNDS
INDUSTRIAL WASTES
INFORMATION
MICROORGANISMS
MONOSACCHARIDES
MUTANTS
NUMERICAL DATA
ORGANIC COMPOUNDS
PLANTS
SACCHARIDES
SACCHAROMYCES
SACCHAROMYCES CEREVISIAE
SYNTHESIS
TOLERANCE
WASTES
WHEY
YEASTS