Changes of microbial population structure related to lignin degradation during lignocellulosic waste composting
Changes of microbial population structure related to lignin degradation during lignocellulosic waste composting
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木质纤维素废物堆肥过程中与木质素降解相关的微生物种群结构的变化
DOI：
10.1016/j.biortech.2009.12.145
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发表时间：
2010-06-01
影响因子：
11.4
通讯作者：
Liu, Hong-Liang
中科院分区：
文献类型：
--
作者：
Huang, Dan-Lian;Zeng, Guang-Ming;Liu, Hong-Liang
采用醌型分析法研究了木质纤维素废弃物堆肥过程中微生物数量及其与生物转化的关系。在初始堆肥材料中观察到9种醌类化合物，在堆肥50天后的堆肥中观察到15种醌类化合物。指示某些真菌的醌物种Q-9（H2）、Q-10和Q-10（H2）出现在嗜热阶段，但在冷却阶段消失。Q-10，某些真菌的指示，和MK-7，某些细菌的特性，是主要的醌类在嗜热阶段，并与木质素降解在嗜热阶段。木质素降解率最高（26%）和良好的纤维素降解被发现在冷却阶段，并与醌Q-9，MK-7和长链甲基萘醌归因于嗜温真菌，细菌和放线菌，分别。本研究结果有助于加深对堆肥过程中微生物动态及其作用的认识，为堆肥技术的发展提供有益的参考。(C)2010年由Elsevier Ltd.出版
Microbial populations and their relationship to bioconversion during lignocellulosic waste composting were studied by quinone profiling. Nine quinones were observed in the initial composting materials, and 15 quinones were found in compost after 50 days of composting. The quinone species Q-9(H2), Q-10 and Q-10(H2) which are indicative of certain fungi appeared at the thermophilic stage but disappeared at the cooling stage. Q-10, indicative of certain fungi, and MK-7, characteristic of certain bacteria, were the predominant quinones during the thermophilic stage and were correlated with lignin degradation at the thermophilic stage. The highest lignin degradation ratio (26%) and good cellulose degradation were found at the cooling stage and were correlated with quinones Q-9, MK-7 and long-chain menaquinones attributed to mesophilic fungi, bacteria and actinomycetes, respectively. The present findings will improve the understandings of microbial dynamics and roles in composting, which could provide useful references for development of composting technology. (C) 2010 Published by Elsevier Ltd.