Citric acid fermentation from starch and dextrose syrups by a trace metal resistant mutant of Aspergillus niger

被引：25

作者：

Lesniak, W ^{[1
]}

Pietkiewicz, J ^{[1
]}

Podgorski, W ^{[1
]}

机构：

[1] Wroclaw Univ Econ, Food Biotechnol Dept, PL-53345 Wroclaw, Poland

来源：

BIOTECHNOLOGY LETTERS | 2002年 / 24卷 / 13期

关键词：

Aspergillus niger; citric acid biosynthesis; dextrose syrups; microelements resistance; starch;

D O I：

10.1023/A:1016030513270

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：

Potato starch and both untreated and decationized dextrose syrups were used as substrates for submerged citric acid biosynthesis using a mutant of Aspergillus niger. The same yield of product (80%) was achieved with both syrups and the starch despite having different trace metals content. The obtained mutant was more sensitive than the parent to Cd2+, Mo2+, and As3+, with decreasing yields of citric acid at 10 mg of ions l(-1). Fe2+, Mn2+, V2+ below 50 mg l(-1) and Cr3+, Ni2+, Cu2+ up to 100 mg l(-1), did not significantly inhibit citric acid production.

引用

页码：1065 / 1067

页数：3

共 5 条

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