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High ethanol yields usingAspergillus oryzaekoji and corn media

✍ Scribed by Jack Ziffer; Mario C. Iosif

Publisher
Springer Netherlands
Year
1982
Tongue
English
Weight
237 KB
Volume
4
Category
Article
ISSN
0141-5492

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✦ Synopsis

High ethanol and stillage solids have been achieved using whole corn mashes. Ethanol yields of 14% (v/v) (89.5% of theory) and stillage levels of approximately 23% (w/v) were obtained in 74-90 hours using mild acid pretreatment with Aspergillus oryzae wheat bran koji saccharification. High ethanol yields were also obtained with bacterial amylase, instead of the acid treatment, when the sterilization step was omitted. The implications of ethanol fermentation process modifications are explored.

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OF GLUCOSE IN HIGH CORN MEDIA and Biotechnology 000 A non-saccharified corn substrate system was developed to study the Saccharomyces cerevisiae alcohol fermentation. It appeared that the factors mediating the fermentation of glucose in non-saccharified high corn substrate media were glucose repress