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Titolo:
EXCRETION OF PROLINE BY SACCHAROMYCES-CEREVISIAE DURING FERMENTATION OF ARGININE-SUPPLEMENTED HIGH GRAVITY WHEAT MASH
Autore:
THOMAS KC; HYNES SH; INGLEDEW WM;
Indirizzi:
UNIV SASKATCHEWAN,DEPT APPL MICROBIOL & FOOD SCI SASKATOON S7N 0W0 SASKATCHEWAN CANADA
Titolo Testata:
Journal of industrial microbiology
fascicolo: 2, volume: 12, anno: 1993,
pagine: 93 - 98
SICI:
0169-4146(1993)12:2<93:EOPBSD>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
ALCOHOL PRODUCTION; ETHANOL; NITROGEN; YEAST;
Keywords:
HIGH GRAVITY; WHEAT MASH FERMENTATION; YEAST; PROLINE PRODUCTION AND EXCRETION; OSMOTIC STRESS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
24
Recensione:
Indirizzi per estratti:
Citazione:
K.C. Thomas et al., "EXCRETION OF PROLINE BY SACCHAROMYCES-CEREVISIAE DURING FERMENTATION OF ARGININE-SUPPLEMENTED HIGH GRAVITY WHEAT MASH", Journal of industrial microbiology, 12(2), 1993, pp. 93-98

Abstract

The rate of ethanolic fermentation of high gravity wheat mashes by Saccharomyces cerevisiae was increased by nitrogen sources such as ammonium sulfate or arginine. This stimulation was mediated through increased proliferation of cells. Large quantities of proline, however, were excreted by the yeast into the medium when arginine was added as a nutrient supplement. The amount of proline excreted was proportional to the concentration of arginine supplied. Nitrogen sources such as ammonium sulfate or lysine enhanced the production of proline from arginine and its excretion into the medium. Results show that the stimulation of very high gravity fermentation by arginine is not merely through provision of a source of nitrogen but also because it serves as a precursor for the production of proline, a compound which may play a significant role in alleviating the effects of osmotic stress.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 05:04:33