THE INFLUENCE OF INTRACELLULAR PH OF SPORES ON CITRIC-ACID PRODUCTION BY ASPERGILLUS-NIGER

被引：3
|
作者：
LEGISA, M
KIDRIC, J
机构：
来源：
JOURNAL OF BIOTECHNOLOGY | 1991年 / 20卷 / 03期
关键词：
ASPERGILLUS-NIGER; INTRACELLULAR PH; 6-PHOSPHOFRUCTOKINASE; CITRIC ACID;
D O I：
10.1016/0168-1656(91)90376-7
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 spores with different intracellular pH values were produced by cultivating Aspergillus niger on potato-dextrose agar at different pH(e) values. High citric acid production is obtained using spores with the highest initial pH values (pH(i)) around 7.5. After a drop of intracellular pH during germination of spores of about 0.7 units, the conditions for highest rate of metabolic flow through the glycolytic pathway were achieved only by the mycelium grown out of spores with the highest pH(i), since a very narrow pH optimum of 6-phosphofructokinase activity has been found around 7.5.
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页码：313 / 318
页数：6
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