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不同氮源发酵生产豆豉纤溶酶的紫外吸收光谱研究

齐海萍 胡文忠 姜爱丽 田密霞

食品工业科技Issue(1):175-177,3.
食品工业科技Issue(1):175-177,3.

不同氮源发酵生产豆豉纤溶酶的紫外吸收光谱研究

Study on fermentation liquid' s absorption spectra in dochi fibrinolytic enzyme fermentation with various nitrogen sources

齐海萍 1胡文忠 1姜爱丽 1田密霞1

作者信息

  • 1. 大连民族学院教育部国家民委重点实验室,辽宁大连116600
  • 折叠

摘要

Abstract

UV line detection method was utilized in this experiment, strain UγD8 with high productive fibrinolytic enzyme fermented for 56h under various nitrogen sources,the fermentation liquid was detected by UV every 4h.Conclusions showed as below:when yeast extract as nitrogen source, after fermentation for 8h, the new material began to produce, after fermentation for 44h, maximum absorbance ( 1.4002 ) appeared, fermentation end, the absorbance decreased.When soybean milk was the sole nitrogen source,the time of new material started to produce was at 4h fermented,in the 36h,absorbance value achieved maximum( 1.0557 ).Soybean dreg as nitrogen sources,when fermented for 4h,the broth generated new material,in the 48h,the absorbance value climaxed at 1.3301.

关键词

UγD8菌株/紫外吸收光谱/氮源

分类

轻工业

引用本文复制引用

齐海萍,胡文忠,姜爱丽,田密霞..不同氮源发酵生产豆豉纤溶酶的紫外吸收光谱研究[J].食品工业科技,2011,(1):175-177,3.

基金项目

辽宁省教育厅基金项目(2008135). (2008135)

食品工业科技

OA北大核心CSCDCSTPCD

1002-0306

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