FED-BATCH CULTURE FOR THE DIRECT CONVERSION OF CELLULOSIC SUBSTRATES TO ACETIC-ACID ETHANOL BY FUSARIUM-OXYSPORUM

被引：13

作者：

KUMAR, PKR ^{[1
]}

SINGH, A ^{[1
]}

SCHUGERL, K ^{[1
]}

机构：

[1] UNIV HANOVER, INST TECH CHEM, W-3000 HANNOVER 1, GERMANY

来源：

PROCESS BIOCHEMISTRY | 1991年 / 26卷 / 04期

关键词：

D O I：

10.1016/0032-9592(91)85002-6

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The production of acetic acid/ethanol and hydrolytic enzymes from potato waste (cellulosic waste from potato starch industries) by Fusarium oxysporum 841 was improved considerably by using fed-batch culture. In this, two types of feed policies were adopted consisting of different substrate concentrations and feeding times. In fed-batch culture, the enzymes tested, namely avicelase, CMCase, cellobiase and xylanase, showed significant improvements over batch fermentations with regard to enzyme titres and productivities. The maximum concentration, yield and productivity of acetic acid were 22.5 g litre-1, 0.38 g (g substrate)-1 and 0.09 g litre-1 h-1, respectively, and these values for ethanol were 5.7 g litre-1, 0.1 g (g substrate)-1 and 0.03 g litre-1 h-1, respectively.

引用

页码：209 / 216

页数：8

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