期刊
BIORESOURCE TECHNOLOGY
卷 233, 期 -, 页码 67-73出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.01.075
关键词
Biomass degrading enzymes; Trichoderma reesei; Humicola insolens; Rice straw; Synergistic effect
资金
- Biomass Utilization Project of Ministry of Agriculture, Forestry and Fisheries (MAFF), Japan [BEC-C070]
Rice straw was evaluated as a carbon source for the fungi, Trichoderma reesei and Humicola insolens, to produce enzymes for rice straw hydrolysis. The enzyme activity of T. reesei and H. insolens cultivated in medium containing non-treated rice straw were almost equivalent to the enzyme of T. reesei cultivated in Avicel medium, a form of refined cellulose. The enzyme activity of T. reesei cultivated in medium containing NH4OH-treated rice straw was 4-fold higher than enzyme from cultures grown in Avicel medium. In contrast, H. insolens enzyme from cultures grown in NH4OH-treated rice straw had significantly lower activity compared with non-treated rice straw or Avicel. The combined use of T. reesei and H. insolens enzymes resulted in a significant synergistic enhancement in enzymatic activity. Our data suggest that rice straw is a promising low-cost carbon source for fungal enzyme production for rice straw hydrolysis. (C) 2017 The Authors. Published by Elsevier Ltd.
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