Kinetics of ethanol inhibition in alcohol fermentation
Journal Article
·
· Biotechnol. Bioeng.; (United States)
The inhibitory effect of ethanol on yeast growth and fermentation has been studied for the strain Saccharo-myces cerevisiae ATCC No. 4126 under anaerobic batch conditions. The results obtained reveal that there is no striking difference between the response of growth and ethanol fermentation. Two kinetic models are also proposed to describe the kinetic pattern of ethanol inhibition on the specific rates of growth and ethanol fermentation. The maximum allowable ethanol concentration above which cells do not grow was predicted to be 112 g/L. The ethanol-producing capability of the cells was completely inhibited at 115 g/L ethanol. The proposed models appear to accurately represent the experimental data obtained in this study and the literature data.
- Research Organization:
- Biotechnology Research Inst., Montreal, Quebec
- OSTI ID:
- 5793311
- Journal Information:
- Biotechnol. Bioeng.; (United States), Journal Name: Biotechnol. Bioeng.; (United States) Vol. 27:3; ISSN BIBIA
- Country of Publication:
- United States
- Language:
- English
Similar Records
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Related Subjects
09 BIOMASS FUELS
090222* -- Alcohol Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
560302 -- Chemicals Metabolism & Toxicology-- Microorganisms-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALCOHOLS
BIOCONVERSION
ETHANOL
FERMENTATION
FUNGI
GROWTH
HYDROXY COMPOUNDS
INHIBITION
KINETICS
MATHEMATICAL MODELS
MICROORGANISMS
ORGANIC COMPOUNDS
PLANTS
PRODUCTIVITY
SACCHAROMYCES
SACCHAROMYCES CEREVISIAE
TOXICITY
YEASTS
090222* -- Alcohol Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
560302 -- Chemicals Metabolism & Toxicology-- Microorganisms-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALCOHOLS
BIOCONVERSION
ETHANOL
FERMENTATION
FUNGI
GROWTH
HYDROXY COMPOUNDS
INHIBITION
KINETICS
MATHEMATICAL MODELS
MICROORGANISMS
ORGANIC COMPOUNDS
PLANTS
PRODUCTIVITY
SACCHAROMYCES
SACCHAROMYCES CEREVISIAE
TOXICITY
YEASTS