期刊
BIORESOURCE TECHNOLOGY
卷 113, 期 -, 页码 83-88出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2011.11.040
关键词
Bioflocculant; Rice straw; Fermentation liquor; Dry fermentation; 454-Pyrosequencing
资金
- National Natural Science Funds of China [50908063]
- State Key Lab of Tsinghua University [10K08ESPCT]
- National Science Foundation of China [50821002]
In this study, fermentation liquor from rice straw was used to produce bioflocculants during a dry fermentation process. Acetic acid and butyric acid were the predominant VFAs during the process. A compound bioflocculant producing inoculum, F+ was inoculated into compound media in which fermentation liquor and conventional bioflocculants medium at different ratios. The maximum flocculation activity, 92.45% was achieved when 100-day fermentation liquor and conventional bioflocculants medium were mixed at an equal ratio. Furthermore, 454-pyrosequencing technology was used to measure bacterial diversity on the 25th day of operation, which was a period of rapid VFA accumulating. A total of 2110 sequences were obtained, and were found to be affiliated with 8 phylogenetic groups, including Actinobacteria, Acidobacteria, Bacteroidetes, Firmicutes, Proteobacteria, Chloroflexi, Spirochaetes and Synergistetes. Notably, Firmicutes (92.3%) was the dominant microbial population, followed by Actinobacteria (2.37%) and Proteobacteria (1.04%). (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