Alcohol fermentation of sweet potato. Membrane reactor in enzymic hydrolysis

Journal Article · Wed Dec 31 23:00:00 EST 1980 · Biotechnol. Bioeng.; (United States)

DOI:https://doi.org/10.1002/bit.260230610· OSTI ID:5167419

Azhar, A; Hamdy, M K

Use of ultrafiltration membrane systems in stirred cell and in thin-channel systems for immobilizing enzyme (sweet potato intrinsic and crystalline beta-amylase) in hydrolysis of sweet potato through a continuous operation mode were studied. Both the filtration rate and reducing sugars, produced as the result of enzymic hydrolysis, decreased with the filtration time. The immobilized enzymes in the thin-channel system showed a much better performance compared to that in the stirred cell system. Addition of crystalline sweet potato beta-amylase to the sweet potato increased both the filtration rate and reducing-sugars content. Alcohol fermentation of the filtrate resulted in an alcohol content of 4.2%. This represented fermentation of 95% of the sugars with an efficiency of 88%.

• Research Organization: Dept. Biol., Georgia State Univ., Altanta, GA USA
• OSTI ID: 5167419
• Journal Information: Biotechnol. Bioeng.; (United States), Journal Name: Biotechnol. Bioeng.; (United States) Vol. 23:6; ISSN BIBIA
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
090222* -- Alcohol Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
ALCOHOLS
BIOCONVERSION
BIOSYNTHESIS
CHEMICAL REACTIONS
DECOMPOSITION
ENZYMATIC HYDROLYSIS
ETHANOL
FERMENTATION
FILTRATION
FOOD
HYDROLYSIS
HYDROXY COMPOUNDS
IMMOBILIZED ENZYMES
LYSIS
MEMBRANES
ORGANIC COMPOUNDS
SEPARATION PROCESSES
SOLVOLYSIS
SYNTHESIS
ULTRAFILTRATION
VEGETABLES
YAMS