您好，欢迎访问河南省农业科学院 机构知识库！
河南省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Profile of Natural Redox Mediators Production of Laccase-Producing Fungus Pleurotus ostreatus

文献类型： 外文期刊

作者： Li, Xuanzhen 1 ; La, Guixiao 2 ; Cheng, Qian 3 ; Wang, Fengji 4 ; Feng, Fajie 4 ; Zhang, Bao 4 ; Zhang, Zhongyi 1 ;

作者机构： 1.Henan Agr Univ, Coll Forest, Zhengzhou 450002, Peoples R China

2.Henan Acad Agr Sci, Ind Crop Res Inst, Zhengzhou 450002, Peoples R China

3.China Tobacco Ind Ltd Liabil Corp, Ctr Tech, Hebei Branch, Shijiazhuang 050051, Peoples R China

4.Fujian Agr & Forestry Univ, Coll Crop Sci, Fuzhou 350002, Peoples R China

关键词： Laccase;Natural redox mediators;Oxidation;Anthracene

期刊名称：BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY （ 影响因子：2.151； 五年影响因子：2.129 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Polycyclic aromatic hydrocarbons (PAHs) are highly toxic organic pollutants which are abundant and environmentally widespread. Anthracene is a simple PAH that can be oxidized by laccases, copper-containing oxidase enzymes, produced by some plants, fungi, and bacteria. In this work, the extracellular culture fluid (CF) of laccase-producing fungus Pleurotus ostreatus was separated to crude laccase (CL) and aqueous ultrafiltrate (AU) fractions. The rate of anthracene oxidation by CF was 68.7 % while oxidation by CL was only 27.8 %. The addition of AU enhanced anthracene oxidation rate by CL to 60.4 %, indicating that the natural redox-mediators were present in the CF. The laccase-catalyzed anthracene oxidation rate increased with increased AU concentration, implying that oxidation rate is positively related to the concentration of natural mediators when laccase activity is constant. The AU from fungal culture containing bran or straw enhanced laccase-catalyzed anthracene oxidation; this enhancement increased further with prolonged fungus-cultivation, implying that both bran and straw induce the natural mediators. Our findings suggest increasing natural mediator levels may be an alternative strategy to improve the biodegradability of laccase-producing fungi.

  • 相关文献

[1]Contrasting characteristics of anthracene and pyrene degradation by wood rot fungus Pycnoporus sanguineus H1. Zhang, Shimin,Ning, Yongxia,Zhang, Xiaolin,Wu, Kun,Zhao, Yong,Yang, Xitian,Li, Xuanzhen,Li, Xuanzhen,Yang, Suqin,Sun, Xiaoxue,La, Guixiao.

作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：河南省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台