Ethanol fermentation of raw cassava starch with Rhizopus koji in a gas circulation type fermentor

Journal Article · Thu Aug 01 04:00:00 EDT 1985 · Biotechnol. Bioeng.; (United States)

DOI:https://doi.org/10.1002/bit.260270823· OSTI ID:6316047

Fujio, Y; Ogato, M; Ueda, S

Studies have been conducted in a gas circulation type fermentor in order to characterize the ethanol fermentation of uncooked cassava starch with Rhizopus koji. Results showed that ethanol concentration reached 13-14% (v/v) in 4-day broth, and the maximum productivity of ethanol was 2.3 g ethanol/l broth h. This productivity was about 50% compared to the productivity of a glucose-yeast system. Ethanol yield reached 83.5-72.3% of the theoretical yield for the cassava starch used. The fermentor used in the present work has been proven by experiment to be suitable for ethanol fermentation of the broth with solid substrate. 10 references.

• Research Organization: Kyushu Univ., Fukuoka, Japan
• OSTI ID: 6316047
• Journal Information: Biotechnol. Bioeng.; (United States), Journal Name: Biotechnol. Bioeng.; (United States) Vol. 27:8; ISSN BIBIA
• Country of Publication: United States
• Language: English

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59 BASIC BIOLOGICAL SCIENCES
ALCOHOLS
BIOCONVERSION
BIOREACTORS
BIOSYNTHESIS
CARBOHYDRATES
CASSAVA
DESIGN
ETHANOL
FERMENTATION
FUNGI
HYDROXY COMPOUNDS
ORGANIC COMPOUNDS
PLANTS
POLYSACCHARIDES
PRODUCTIVITY
REAGENTS
RHIZOPUS
SACCHARIDES
STARCH
SUBSTRATES
SYNTHESIS