期刊
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
卷 75, 期 -, 页码 89-95出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ibiod.2012.09.003
关键词
Steam-exploded rice straw; Solid-state fermentation; Lignin removal; Phanerochaete chrysosporium
资金
- National Hitech Program of China [2008AA030705]
- Sichuan Province Science and Technology Plain Foundation [09GG1632]
- Fundamental Research Funds for the Central Universities [SWJTU11BR056, SWJTU11CX052]
Factors affecting the delignification of steam-exploded rice straw (SERS) by solid-state fermentation (SSF) with Phanerochaete chrysosporium were systematically investigated. SSF time was found to be the most important factor influencing delignification. The relationship between delignification and SSF time conformed to a sigmoidal curve. After a lag period, lignin removal efficiency sharply increased to 50.13% on the 10th day of fermentation and tended to stabilize after 12 d. Biomass weight loss increased linearly with SSF time prolonged because of the removal of lignin and hemicellulose over 10 d of fermentation, after which the degradation of cellulose gradually became the major factor affecting delignification. The samples were identified by FT-IR, SEM, and XRD. The optimum culture conditions were 1.5% spore suspension, 0.3% Tween 80, 70% moisture content, an initial pH of 5.0, and 12 d of SSF. The information presented in the current paper offers new insights into the biological progress of P. chrysosporium on SERS. (C) 2012 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