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Production of single cell protein from ethanol by fed‐batch process
Author(s) -
Watteeuw C. M.,
Armiger W. B.,
Ristroph D. L.,
Humphrey A. E.
Publication year - 1979
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.260210711
Subject(s) - fermentation , ethanol , ethanol fuel , single cell protein , respiratory quotient , chemistry , yield (engineering) , biochemistry , substrate (aquarium) , ethanol fermentation , chromatography , biology , ecology , materials science , metallurgy
The production of single cell protein (SCP) form ethanol is an interesting process to study from a biochemical engineering viewpoint. The cellular yield mainly depends upon the metabolic activity of the cells and the amount of substrate available. Fedbatch fermentations Were run in a 70 liter highly instrumented computer‐coupled fermentor using Candida utilis . Respiratory quotient and culture fluorescence, measuring NADH, indicate by which pathway ethanol is utilized. By monitoring these parameters it is possible to control the ethanol concentration so that accumulation of acetate is minimized and the conversion of ethanol to cell mass is maximized.