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Inhibition of alcoholic fermentation by substrate and ethanol
Author(s) -
Moulin G.,
Boze Hèlène,
Galzy P.
Publication year - 1980
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260221112
Subject(s) - fermentation , ethanol , chemistry , lactose , ethanol fermentation , substrate (aquarium) , alcohol , biochemistry , food science , ethanol fuel , chromatography , biology , ecology
The effect of ethanol and sugars on rates of fermentation was studied. We used a strain of Canadida pseudotropicalis . The specific rate of fermentation was determined by using the Warburg manometer. The effect of ethanol was formulated as an exponential function of ethanol concentration, but the empirical constant was different when glucose or lactose was used as a substrate. The effects of both ethanol and substrate were formulated. It was demonstrate that when lactose and glucose were present in the medium with a small amount of alcohol, a synergistic effect on the rate of fermentation appeard. This phenomenon considerably limits the rate of fermentation.