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Titolo:
Production of fructose and ethanol from media with high sucrose concentrations by a mutant of Saccharomyces cerevisiae
Autore:
Atiyeh, H; Duvnjak, Z;
Indirizzi:
Univ Ottawa, Dept Chem Engn, Ottawa, ON K1N 6N5, Canada Univ Ottawa Ottawa ON Canada K1N 6N5 hem Engn, Ottawa, ON K1N 6N5, Canada
Titolo Testata:
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
fascicolo: 10, volume: 76, anno: 2001,
pagine: 1017 - 1022
SICI:
0268-2575(200110)76:10<1017:POFAEF>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
ZYMOMONAS-MOBILIS; SYRUP; FERMENTATION; GLUCOSE; IDENTIFICATION; CULTURE; YEAST;
Keywords:
Saccharomyces cerevisiae; fructose; sucrose; ethanol; fructo-oligosaccharides; glycerol;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Engineering, Computing & Technology
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Duvnjak, Z Univ Ottawa, Dept Chem Engn, Ottawa, ON K1N 6N5, Canada Univ Ottawa Ottawa ON Canada K1N 6N5 ttawa, ON K1N 6N5, Canada
Citazione:
H. Atiyeh e Z. Duvnjak, "Production of fructose and ethanol from media with high sucrose concentrations by a mutant of Saccharomyces cerevisiae", J CHEM TECH, 76(10), 2001, pp. 1017-1022

Abstract

The production of enriched fructose syrups and ethanol from a synthetic medium with high sucrose concentrations was studied in a batch process using Saccharomyces cerevisiae ATCC 36858. The results showed that the fructose yield was above 92% of theoretical values in synthetic media with sucrose concentrations between 180 g dm(-3) and 726 g dm(-3). Ethanol yield was about82% in media with sucrose concentrations up to 451 g dm(-3). A product containing 178 g dm(-3) fructose, which represents 97% of the total sugar content, and 79 g dm(-3) ethanol was obtained using a medium with 360 g dm(-3) sucrose. The fructose fraction in the carbohydrates content in the producedsyrups decreased with increases in the initial sucrose concentration. In amedium with initial sucrose concentration of 574g dm(-3) the fructose content in the produced broth was 59% of the total carbohydrates. Glycerol and fructo-oligosaccharides were also produced in this process. The produced fructo-oligosaccharides started to be consumed when the concentration of sucrose in the media was less than 30% of its initial value. Complete hydrolysis of these sugars was noticed in media with sucrose concentrations below 451 g dm(-3). These findings will be useful in the production of ethanol and high fructose syrups using sucrose-based raw materials with high concentrations of this carbohydrate. (C) 2001 Society of Chemical Industry.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 09:14:33