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Ethanol from hydrolyzed whey permeate using Saccharomyces cerevisiae in a membrane recycle bioreactor

Abstract

A diauxic fermentation was observed during batch fermentation of enzyme-hydrolyzed whey permeate to ethanol by Saccharomyces cerevisiae. Glucose was consumed before and much faster than galactose. In the continuous membrane recycle bioreactor (MRB), sugar utilization was a function of dilution rate and concentration of sugars. At a cell concentration of 160 kg/m{sup 3}, optimum productivity was 31 kg/(m{sup 3}.h) at ethanol concentration of 65 kg/m{sup 3}. Low levels of acetate (0.05-0.1 M) reduced cell growth during continuous fermentation, but also reduced galactose utilization. (orig.).
Authors:
Mehaia, M A; [1]  Cheryan, M [2] 
  1. King Saud Univ., Buriedah (Saudi Arabia). Dairy Technology Lab.
  2. Illinois Univ., Urbana, IL (USA). Agricultural Bioprocess Lab.
Publication Date:
Feb 13, 1990
Product Type:
Journal Article
Reference Number:
DE-90-004071; EDB-90-059201
Resource Relation:
Journal Name: Bioprocess Engineering; (Germany, F.R.); Journal Volume: 5:2
Subject:
09 BIOMASS FUELS; ETHANOL; PRODUCTION; MEMBRANES; BIOREACTORS; SACCHAROMYCES CEREVISIAE; CELL CULTURES; WHEY; ENZYMATIC HYDROLYSIS; BATCH CULTURE; DIAGRAMS; FERMENTATION; LACTOSE; ALCOHOLS; BIOCONVERSION; CARBOHYDRATES; CHEMICAL REACTIONS; DECOMPOSITION; DISACCHARIDES; EUMYCOTA; FOOD; FUNGI; HYDROLYSIS; HYDROXY COMPOUNDS; INDUSTRIAL WASTES; LYSIS; MICROORGANISMS; MILK PRODUCTS; OLIGOSACCHARIDES; ORGANIC COMPOUNDS; PLANTS; SACCHARIDES; SACCHAROMYCES; SOLVOLYSIS; WASTES; YEASTS; 090900* - Biomass Fuels- Processing- (1990-)
OSTI ID:
7203018
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0178-515X; CODEN: BIENE
Submitting Site:
DE
Size:
Pages: 57-61
Announcement Date:

Citation Formats

Mehaia, M A, and Cheryan, M. Ethanol from hydrolyzed whey permeate using Saccharomyces cerevisiae in a membrane recycle bioreactor. Germany: N. p., 1990. Web. doi:10.1007/BF00589146.
Mehaia, M A, & Cheryan, M. Ethanol from hydrolyzed whey permeate using Saccharomyces cerevisiae in a membrane recycle bioreactor. Germany. doi:10.1007/BF00589146.
Mehaia, M A, and Cheryan, M. 1990. "Ethanol from hydrolyzed whey permeate using Saccharomyces cerevisiae in a membrane recycle bioreactor." Germany. doi:10.1007/BF00589146. https://www.osti.gov/servlets/purl/10.1007/BF00589146.
@misc{etde_7203018,
title = {Ethanol from hydrolyzed whey permeate using Saccharomyces cerevisiae in a membrane recycle bioreactor}
author = {Mehaia, M A, and Cheryan, M}
abstractNote = {A diauxic fermentation was observed during batch fermentation of enzyme-hydrolyzed whey permeate to ethanol by Saccharomyces cerevisiae. Glucose was consumed before and much faster than galactose. In the continuous membrane recycle bioreactor (MRB), sugar utilization was a function of dilution rate and concentration of sugars. At a cell concentration of 160 kg/m{sup 3}, optimum productivity was 31 kg/(m{sup 3}.h) at ethanol concentration of 65 kg/m{sup 3}. Low levels of acetate (0.05-0.1 M) reduced cell growth during continuous fermentation, but also reduced galactose utilization. (orig.).}
doi = {10.1007/BF00589146}
journal = {Bioprocess Engineering; (Germany, F.R.)}
volume = {5:2}
journal type = {AC}
place = {Germany}
year = {1990}
month = {Feb}
}