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Journal of Zhejiang University SCIENCE B 2007 Vol.8 No.5 P.371~376

10.1631/jzus.2007.B0371


Effect of cultivating conditions on a-galactosidase production by a novel Aspergillus foetidus ZU-G1 strain in solid-state fermentation


Author(s):  LIU Cai-qin, CHEN Qi-he, CHENG Qian-jun, WANG Jin-ling, HE Guo-qing

Affiliation(s):  Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310029, China

Corresponding email(s):   gqhe@zju.edu.cn

Key Words:  #x03B1, -Galactosidase, Culture condition, Aspergillus foetidus ZU-G1, Solid-state fermentation


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LIU Cai-qin, CHEN Qi-he, CHENG Qian-jun, WANG Jin-ling, HE Guo-qing. Effect of cultivating conditions on a-galactosidase production by a novel Aspergillus foetidus ZU-G1 strain in solid-state fermentation[J]. Journal of Zhejiang University Science B, 2007, 8(5): 371~376.

@article{title="Effect of cultivating conditions on a-galactosidase production by a novel Aspergillus foetidus ZU-G1 strain in solid-state fermentation",
author="LIU Cai-qin, CHEN Qi-he, CHENG Qian-jun, WANG Jin-ling, HE Guo-qing",
journal="Journal of Zhejiang University Science B",
volume="8",
number="5",
pages="371~376",
year="2007",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2007.B0371"
}

%0 Journal Article
%T Effect of cultivating conditions on a-galactosidase production by a novel Aspergillus foetidus ZU-G1 strain in solid-state fermentation
%A LIU Cai-qin
%A CHEN Qi-he
%A CHENG Qian-jun
%A WANG Jin-ling
%A HE Guo-qing
%J Journal of Zhejiang University SCIENCE B
%V 8
%N 5
%P 371~376
%@ 1673-1581
%D 2007
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2007.B0371

TY - JOUR
T1 - Effect of cultivating conditions on a-galactosidase production by a novel Aspergillus foetidus ZU-G1 strain in solid-state fermentation
A1 - LIU Cai-qin
A1 - CHEN Qi-he
A1 - CHENG Qian-jun
A1 - WANG Jin-ling
A1 - HE Guo-qing
J0 - Journal of Zhejiang University Science B
VL - 8
IS - 5
SP - 371
EP - 376
%@ 1673-1581
Y1 - 2007
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2007.B0371


Abstract: 
The work is intended to achieve optimum culture conditions of #x03B1;-Galactosidase production by a mutant strain Aspergillus foetidus ZU-G1 in solid-state fermentation (SSF). Certain fermentation parameters involving moisture content, incubation temperature, cultivation period of seed, inoculum volume, initial pH value, layers of pledget, load size of medium and period of cultivation were investigated separately. The optimal cultivating conditions of #x03B1;-Galactosidase production in SSF were 60% initial moisture of medium, 28 °C incubation temperature, 18 h cultivation period of seed, 10% inoculum volume, 5.0~6.0 initial pH of medium, 6 layers of pledget and 10 g dry matter loadage. Under the optimized cultivation conditions, the maximum #x03B1;-Galactosidase production was 2 037.51 U/g dry matter near the 144th hour of fermentation.

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