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生物质化学工程 ›› 2014, Vol. 48 ›› Issue (5): 7-10.doi: 10.3969/j.issn.1673-5854.2014.05.002

• 研究报告 • 上一篇    下一篇

应用里氏木霉发酵制备纤维素酶固体曲的研究

张宁, 蒋剑春, 杨静, 卫民, 赵剑, 童娅娟   

  1. 中国林业科学研究院 林产化学工业研究所; 生物质化学利用国家工程实验室; 国家林业局 林产化学工程重点 开放性实验室; 江苏省生物质能源与材料重点实验室, 江苏 南京 210042
  • 收稿日期:2014-05-20 出版日期:2014-09-30 发布日期:2014-09-30
  • 通讯作者: 蒋剑春,男,研究员,博士,博士生导师;从事林产化学加工和生物质能源开发技术研究;E-mail:bio-energy@163.com。 E-mail:bio-energy@163.com
  • 作者简介:张宁(1978-),女,吉林白城人,副研究员,博士;主要从事生物质能源及工业微生物研究工作
  • 基金资助:
    国家林业局公益性行业专项资助项目(201004001);江苏省自然科学基金资助项目(BK2012515)

Study on the Fermentation of Cellulase Solid Koji by Using Trichoderma reesei

ZHANG Ning, JIANG Jian-chun, YANG Jing, WEI Min, ZHAO Jian, TONG Ya-juan   

  1. Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab. for Biomass Chemical Utilization; Key and Open Lab. of Forest Chemical Engineering, SFA; Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China
  • Received:2014-05-20 Online:2014-09-30 Published:2014-09-30

摘要: 应用本实验室筛选得到的纤维素酶高产菌株里氏木霉(Trichoderma reesei)150-1-1发酵制备纤维素酶固体曲,通过优化固态发酵培养基组成及发酵条件,制备得到纤维素酶活力较高的固体曲及粗酶液。实验结果表明,在原料量为10 g,麸皮与秸杆粉质量比为4:1,料液比为1:2.5,发酵时间为120 h,发酵温度为31℃,发酵起始pH值为5.5的条件下,应用里氏木霉150-1-1发酵得到的纤维素酶固体曲酶活力达到423.6 U/g。

关键词: 里氏木霉, 纤维素酶, 固体曲, 发酵

Abstract: The cellulase solid koji was fermented by using high yielding strain Trichoderma reesei 150-1-1 screened in our laboratory. Solid koji and crude enzyme with high cellulase activities were obtained by optimizing the medium components and fermentation conditions of solid fermentation. The results showed that the cellulase activities of solid koji reached 423.6 U/g under the optimal conditions where the fermentation material was 10 g, the ratio of straw powder to wheat bran was 4:1, the ratio of materials to water was 1:2.5, the fermentation reaction temperature was 31℃, the reaction time was 120 h, and the original pH was 5.5.

Key words: Trichoderma reesei, cellulase, solid koji, fermentation

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