南京林业大学学报(自然科学版) ›› 2015, Vol. 58 ›› Issue (04): 143-148.doi: 10.3969/j.issn.1000-2006.2015.04.025

• 研究论文 • 上一篇    下一篇

碳源和氮源对固态发酵制备β-甘露聚糖酶的影响

张晓燕,李 鑫,王 静,余世袁,勇 强*   

  1. 南京林业大学化学工程学院,江苏 南京 210037
  • 出版日期:2015-07-31 发布日期:2015-07-31
  • 基金资助:
    收稿日期:2014-06-13 修回日期:2015-04-07基金项目:国家林业公益性行业科研专项项目(201404615); 江苏省六大人才高峰项目 第一作者:张晓燕,硕士生。*通信作者:勇强,教授。E-mail:swhx@njfu.com.cn。引文格式:张晓燕,李鑫,王静,等. 碳源和氮源对固态发酵制备β-甘露聚糖酶的影响[J]. 南京林业大学学报:自然科学版,2015,39(4):143-148.

Effects of carbon source and nitrogen source on solid state fermentation for the production of β-mannanase

ZHANG Xiaoyan, LI Xin, WANG Jing, YU Shiyuan, YONG Qiang*   

  1. College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
  • Online:2015-07-31 Published:2015-07-31

摘要: 采用低聚木糖生产废渣替代麸皮固态发酵制备β-甘露聚糖酶,研究了碳源种类和组成、诱导物、氮源种类和组成对黑曲霉固态发酵制备β-甘露聚糖酶的影响。结果表明:低聚木糖废渣可部分替代麸皮固态发酵制备β-甘露聚糖酶。以低聚木糖废渣和麸皮质量比4:6为复合碳源,2%的硫酸铵为氮源,黑曲霉在添加3%魔芋粉的培养基中于30 ℃条件下固态发酵5 d,制备的β-甘露聚糖酶、β-甘露糖苷酶活力分别为341.8、7.02 μmol/(min·g),可溶性蛋白含量为8.40 mg/g。

Abstract: The residues from xylo-oligosaccharides production was applied for β-mannanase preparation instead of wheat bran, and effects of different kinds and ratio of carbon sources, inducer, nitrogen sources and loading on solid state fermentation for β-mannanase preparation by Aspergillus niger were investigated in this work. Residues of xylo-oligosaccharides production could be instead of wheat bran partly for β-mannanase preparation. Solid state fermentation of residues of xylo-oligosaccharides production and bran by A. niger for five days, which the mass ratio of residues of xylo-oligosaccharides production to wheat bran was 4:6, 2% of ammonia sulfate and 3% of konjac flour loading in the medium, the β-mannanase activity and β-mannosidase activity were 341.8 and 7.02 μmol/(min·g), respectively, and soluble protein content was 8.40 mg/g.

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