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池振明

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期刊论文

Inulinase production by the marine yeast Cryptococcus aureus G7a and inulin hydrolysis by the crude inulinase

池振明Jun Sheng Zhenming Chi Jing Li Lingmei Gao Fang Gong

J. Sheng et al. Process Biochemistry xxx (2007) xxx-xxx,-0001,():

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摘要/描述

The marine yeast strain G7a isolated from sediment of China South Sea was found to secrete a large amount of inulinase into the medium. This marine yeast strain was identified to be a strain of Cryptococcus aureus according to the results of routine yeast identification and molecular methods. The crude inulinase produced by this marine yeast showed the highest activity at pH 5.0 and 50 8C. The optimal medium for inulinase production was artificial seawater containing inulin 4.0% (w/v), K2HPO4 0.3% (w/v), yeast extract 0.5% (w/v), KCl 0.5% (w/v), CaCl2 0.12% (w/v), NaCl 4.0% (w/v) and MgCl2

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