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Fuel ethanol from raw corn

Conference · · ASAE Tech. Pap.; (United States)
OSTI ID:6186722
; ;
Crude amylase preparations were produced by growing Aspergillus awamori and A. niger on raw ground whole corn. These Koji preparations were used to hydrolyze the starch of raw ground whole corn to sugars during simultaneous fermentation of the sugars to ethanol by distillers active dry yeast. Ethanol concentrations of the fermentation beers were determined with gas-chromatography. These fermentations yielded an average of 89.6% theoretical ethanol compared to control, conventional, fermentations that had an average of 89.8%. Carbon dioxide evolutions were determined with use of Alwood valves. Both the Koji and conventional fermentations produced an average of 0.48 gram of carbon dioxide per gram of dry substrate starch within 72 hours. However, initially the conventional fermentation rate was greater. Koji dehydrated at 41 degrees C had no apparent detrimental effects on theoretical ethanol yield.
Research Organization:
Univ. of Illinois, Urbana
OSTI ID:
6186722
Report Number(s):
CONF-8306126-
Conference Information:
Journal Name: ASAE Tech. Pap.; (United States) Journal Volume: 83-3066
Country of Publication:
United States
Language:
English

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Related Subjects

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59 BASIC BIOLOGICAL SCIENCES
ALCOHOLS
AMYLASE
ASPERGILLUS
BATCH CULTURE
BIOCONVERSION
BIOSYNTHESIS
CARBOHYDRATES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CEREALS
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMATOGRAPHY
CONTROL EQUIPMENT
DECOMPOSITION
DEHYDRATION
ENZYMATIC HYDROLYSIS
ENZYMES
EQUIPMENT
ETHANOL
FERMENTATION
FLOW REGULATORS
FUELS
FUNGI
GAS CHROMATOGRAPHY
GLYCOSYL HYDROLASES
GRASS
HYDROLASES
HYDROLYSIS
HYDROXY COMPOUNDS
LYSIS
MAIZE
MEDIUM TEMPERATURE
MICROORGANISMS
O-GLYCOSYL HYDROLASES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLANTS
POLYSACCHARIDES
PRODUCTION
REAGENTS
SACCHARIDES
SEPARATION PROCESSES
SOLVOLYSIS
STARCH
SUBSTRATES
SYNTHESIS
SYNTHETIC FUELS
VALVES
YEASTS
YIELDS