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碳源和氮源对黑曲霉分泌β-葡萄糖苷酶的影响

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2008年06期
Page:
1-4
Column:
研究论文
publishdate:
2008-11-30

Article Info:/Info

Title:
Effects of carbon and nitrogen sources on β- glucosidase biosynthesis by Aspergillus niger nl -1
Article ID:
1000-2006(2008)06-0001-04
Author(s):
ZHAO Lin-guo YOU Li-jin NI Hao ZONG Ya-dong YU Shi-yuan
College of Chemical Engineering Nanjing Forestry University, Nanjing 210037, China
Keywords:
β - glucosidase Carbon source Nitrogen sources Aspergillus niger
Classification number :
TQ352
DOI:
10.3969/j.jssn.1000-2006.2008.06.001
Document Code:
A
Abstract:
Effects of carbon and nitrogen sources on the biosynthesis of β- glucosidase by Aspergillus niger nl- 1 were investigated. The results showed that bran was the best carbon source for β - glucosidase production among the studied carbon sources, and its preferable concentration was 4%. In the experimental sources of nitrogen, (NH4)2SO4 and the peptone were the best nitrogen source to produce β -glucosidase as inorganic nitrogen and organic nitrogen, respectively. Moreover, the indueing β - glucosidase ability of mixture nitrogen source was better than that of a single nitrogen source. The favorable ratio of them was 0.2% ammonium sulfate and 3. 19% peptone. In these eases, the highest activity of β - glucosidase, 4.82 U/mL, was obtained.

References

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Last Update: 2013-05-20