期刊
BIORESOURCE TECHNOLOGY
卷 115, 期 -, 页码 35-40出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2011.07.111
关键词
Isolation; Laccase; Characterization; Bacillus licheniformis; Decolorization
资金
- National Natural Science Foundation of China [30170775, 30671702]
- National Key Technology R&D Program of China [2008BADA1B01]
- Fundamental Research Funds for the Central Universities [DL10BA09]
A new bacterial strain exhibiting laccase activity was isolated from forest soil and was identified as Bacillus licheniformis LS04. The spore laccase of B. licheniformis LS04 demonstrated a broad pH range for catalyzing substrates. It was quite stable at high temperature and alkaline pH. There was no loss of laccase activity after 10 days incubation at pH 9.0, and about 16% of the initial activity was detected after 10 h at 80 degrees C. In addition, the spore laccase was tolerant towards 1 M of NaCl and 30% of organic solvents. Reactive black 5, reactive blue 19 and indigo carmine were decolorized by the spore laccase in the absence of mediator. Meanwhile, the decolorization process was efficiently promoted when acetosyringone was present, with more than 80% of color removal in 1 h at pH 6.6 or 9.0. The unusual properties indicated a high potential in industrial applications for this novel spore laccase. (C) 2011 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据