Alcoholic fermentation: modelling based on sole substrate and product measurement

Journal Article · Sun Jan 01 04:00:00 EST 1984 · Biotechnol. Bioeng.; (United States)

DOI:https://doi.org/10.1002/bit.260260406· OSTI ID:6548453

Bovee, J P; Strehaiano, P; Goma, G; Sevely, Y

Optimal automatic bioreator control requires a mathematical model adapted to the potency of reliable sensors. A new relationship describing the kinetic behavior of alcoholic fermentation is discussed. By analogy with chemical kinetics, the biological rate of substrate consumption is related to substrate and product concentration by the following equation: r/sub s/ = kS/sup ..cap alpha../P/sup BETA/. Using the well known yield relation between product and substrate, it is possible to describe in both batch and continuous cultures the ethanol and sugar concentrations versus time. This pattern has been successfully tested on several fermentations performed by yeasts (S. cerevisiae, S. bayanus, and S. cerevisiae sake) and a bacterium (Z. mobilis). This simple relationship is proposed as a tool for process control alcoholic fermentation.

• Research Organization: LAAS du CNRS, Toulouse, France
• OSTI ID: 6548453
• Journal Information: Biotechnol. Bioeng.; (United States), Journal Name: Biotechnol. Bioeng.; (United States) Vol. 26:4; ISSN BIBIA
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
090222* -- Alcohol Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
ALCOHOLS
BACTERIA
BATCH CULTURE
BIOCHEMICAL REACTION KINETICS
BIOCONVERSION
BIOREACTORS
BIOSYNTHESIS
CONTINUOUS CULTURE
EQUATIONS
ETHANOL
FERMENTATION
FUNGI
HYDROXY COMPOUNDS
KINETIC EQUATIONS
KINETICS
MATHEMATICAL MODELS
MICROORGANISMS
ORGANIC COMPOUNDS
PLANTS
PRODUCTIVITY
REACTION KINETICS
SUBSTRATES
SYNTHESIS
YEASTS