Abstract:
:The inhibitory effect of ethanol on yeast growth and fermentation has been studied for the strain Saccharomyces 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: microi/micro0 = 1 - (P/Pm)alpha (for growth) nui/nu0 = 1 - (P/P'm)beta (for ethanol production). 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.
journal_name
Biotechnol Bioengjournal_title
Biotechnology and bioengineeringauthors
Luong JHdoi
10.1002/bit.260270311subject
Has Abstractpub_date
1985-03-01 00:00:00pages
280-5issue
3eissn
0006-3592issn
1097-0290journal_volume
27pub_type
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