生物技术通报 ›› 2013, Vol. 0 ›› Issue (1): 198-202.

• 研究报告 • 上一篇    下一篇

四种测定纤维素酶发酵过程生物量方法的比较

李晨1,2, 赫荣琳2 ,武改红2 ,马立娟2 ,路福平1 ,陈树林2   

  1. 1. 天津科技大学生物工程学院,天津 300457 ;2. 中国科学院天津工业生物技术研究所 天津市工业生物系统与过程工程重点实验室,天津 300308
  • 收稿日期:2012-08-06 修回日期:2013-01-31 出版日期:2013-01-30 发布日期:2013-01-30
  • 作者简介:李晨,男,硕士研究生,研究方向:木质纤维素生物炼制;E-mail : heima00111@163.com
  • 基金资助:
    国家高技术研究发展计划(“863”计划)项目(2012AA101807),国家自然科学基金青年基金项目(21106102),天津市应用基础及前言技术研究计划青年基金项目(12JCQNJC03600)

Comparison of Four Methods for Measuring the Biomass of the Cellulase Production Process

Li Chen1,2, He Ronglin2, Wu Gaihong2, Ma Lijuan2, Lu Fuping1, Chen Shulin2   

  1. 1College of Bioengineering,Tianjin University of Science & Technology, Tianjin 300457;
    2. Tianjin Key Laboratory for Industrial Biological Systems and Bioprocessing Engineering, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308
  • Received:2012-08-06 Revised:2013-01-31 Published:2013-01-30 Online:2013-01-30

摘要: 分别采用测定菌丝体蛋白的方法、测定核酸的方法、酸洗干燥法和纤维素测定仪的方法测定以不溶性纤维素为底物发酵产纤维素酶过程中的生物量。通过对发酵液取样测定比较,结果发现,采用测定核酸的方法精密度最高,其RSD 值为6.32%,该法同纤维素测定仪的方法均可用于精确测定以不溶性纤维素为底物发酵产纤维素酶过程中的生物量。酸洗干燥法的测定结果精密度较差一些,但由于操作简便,也可用于常规分析。而测定菌丝体蛋白的方法无论是在精密度上还是操作简便性上均不占优势,该方法可作为另外3 种方法的补充。为以不溶性纤维素为底物发酵产纤维素酶过程中生物量的分析检测提供了选择方法的依据。

关键词: 纤维素 , 纤维素酶 , 生物量 , 菌丝体蛋白 , 核酸 , 酸洗 , 纤维素测定仪

Abstract: Biomass of the cellulase production process with insoluble cellulose as the substrate was measured using mycelial proteindetermination, nucleic acid determination, acid washing and drying method as well as cellulose analyzer application, respectively. Measurementresults of fermentation broth samples indicated that the precision of nucleic acid determination method was the highest with RSD value at 6.32%.This method and cellulose analyzer application method could be used to determine the biomass of the cellulase production process with insolublecellulose as the substrate more accurately. The precision of acid washing and drying method was poorer, but it could be used for routine analysisof biomass due to its simple operation. The mycelial protein determination method was proved to be poorer neither in precision nor in operationsimplicity, and it could be used as the complement of the other three methods. This study provides a basis for selecting method in measuring thebiomass of the cellulase production process with insoluble cellulose as the substrate.

Key words: Cellulose , Cellulase , Biomass , Mycelial protein , Nucleic acid , Acid washing , Cellulose analyzer