INFLUENCE OF THE NITROGEN-SOURCE ON GROWTH AND ETHANOL-PRODUCTION BY PICHIA-STIPITIS NRRL Y-7124

被引：17

作者：

GUEBEL, DV ^{[1
]}

CORDENONS, A ^{[1
]}

CASCONE, O ^{[1
]}

GIULIETTI, AM ^{[1
]}

NUDEL, C ^{[1
]}

机构：

[1] UNIV BUENOS AIRES,FAC FARM & BIOQUIM,CATEDRA BIOTECNOL,JUNIN 956,RA-1113 BUENOS AIRES,ARGENTINA

来源：

BIOTECHNOLOGY LETTERS | 1992年 / 14卷 / 12期

关键词：

D O I：

10.1007/BF01027027

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：

Growth and ethanol production by Pichia stipitis in media containing different nitrogen sources were compared. Ammonium sulphate (plus vitamins and trace elements) increased ethanol productivity 57 % and ethanol-biomass yield 113 %, compared to yeast extract. Consumption of ammonium, amino-acids and total nitrogen was determined. Two ammonium effects, low uptake in complex media and fermentation stimulation in defined media are discussed in terms of ammonium- ammonia futile cycling and maintenance energy.

引用

页码：1193 / 1198

页数：6

共 18 条

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