Improvement of very high gravity ethanol fermentation by media supplementation using Saccharomyces cerevisiae

被引：112

作者：

Bafrncová, P ^{[1
]}

Smogrovicová, D ^{[1
]}

Sláviková, I ^{[1
]}

Pátková, J ^{[1
]}

Dömény, Z ^{[1
]}

机构：

[1] Slovak Univ Technol Bratislava, Fac Chem Technol, Dept Biochem Technol, Bratislava 81237, Slovakia

来源：

BIOTECHNOLOGY LETTERS | 1999年 / 21卷 / 04期

关键词：

ethanol; media supplementation; nitrogen source; Saccharomyces;

D O I：

10.1023/A:1005436816047

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The final ethanol concentration achieved was increased by 17% (to 103 g ethanol/l) when excess assimilable nitrogen was added to the batch very high gravity (VHG) ethanolic fermentations by Saccharomyces cerevisiae. The supplementation of the media with 12 g yeast extract l(-1), 0.3 g cell walls l(-1), 3 g glycine l(-1) and 20 g soya flour l(-1) led to halving reduction of the fermentation time to 28 h. The ethanol productivity was enhanced by more than 50% (to achieved value 3.3 g l(-1) h(-1)).

引用

页码：337 / 341

页数：5

共 11 条

[1] RAPID PRODUCTION OF ETHANOL IN HIGH-CONCENTRATION BY IMMOBILIZED CELLS OF SACCHAROMYCES-CEREVISIAE THROUGH SOYA FLOUR SUPPLEMENTATION [J].