Improvement of the ethanol productivity in a high gravity brewing at pilot plant scale

被引：17

作者：

Dragone, G ^{[1
]}

Silva, DP

Silva, JBDAE

Lima, UD

机构：

[1] Fac Chem Engn Lorena, Dept Biotechnol, BR-12600970 Lorena, SP, Brazil

[2] Univ Sao Paulo, Fac Pharmaceut Sci, Dept Pharmaceut Technol & Biochem, Sao Paulo, Brazil

来源：

BIOTECHNOLOGY LETTERS | 2003年 / 25卷 / 14期

基金：

巴西圣保罗研究基金会;

关键词：

ethanol; factorial design; fermentation; high gravity brewing; Saccharomyces cerevisiae;

D O I：

10.1023/A:1024590324230

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：

A 2(3) full factorial design was used to study the influence of different experimental variables, namely wort gravity, fermentation temperature and nutrient supplementation, on ethanol productivity from high gravity wort fermentation by Saccharomyces cerevisiae (lager strain), under pilot plant conditions. The highest ethanol productivity (0.69 g l(-1) h(-1)) was obtained at 20 degreesP [degreesP is the weight of extract (sugar) equivalent to the weight of sucrose in a 100 g solution at 20 degreesC], 15 degreesC, with the addition of 0.8% (w/v) yeast extract, 24 mg l(-1) ergosterol and 0.24% (v/v) Tween 80.

引用

页码：1171 / 1174

页数：4

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