title: Effect of inoculum sources on the anaerobic digestion of rice straw.
abstract: The aim of this study was to evaluate the effect of different inoculum sources on the rice straw anaerobic digestion. Six different digestates (DM, SM, CM, MS, AGS and PS) were applied as inoculums and their effects were evaluated in batch reactors. The results indicated that digested manures were more suitable than sludge. Reactors inoculated with digested manures achieved higher, biogas production and lignocellulose degradation. The better adaptability of digested manures had relationship with its higher cellulase and xylanase activities and sufficient nutrients content. DM had the best effect among all three digested manures. Reactors inoculated with DM achieved the highest biogas production (325.3 mL/g VS) and enzymes activities. The synergism between cellulase and xylanase activities played an important role in lignocellulose degradation.
authors.affiliation: Key Laboratory of Yangtze Water Environment of Ministry of Education, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Gu
authors.affiliation: Key Laboratory of Yangtze Water Environment of Ministry of Education, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China.
authors.forename: Xiaohua
authors.initials: X
authors.lastname: Chen
authors.affiliation: Key Laboratory of Yangtze Water Environment of Ministry of Education, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China.
authors.forename: Zhanguang
authors.initials: Z
authors.lastname: Liu
authors.affiliation: Key Laboratory of Yangtze Water Environment of Ministry of Education, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China. Electronic address: zhouxuefei@tongji.edu.cn.
authors.forename: Xuefei
authors.initials: X
authors.lastname: Zhou
authors.affiliation: Key Laboratory of Yangtze Water Environment of Ministry of Education, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China. Electronic address: zhangyalei@tongji.edu.cn.
authors.forename: Yalei
authors.initials: Y
authors.lastname: Zhang
mesh_terms: D000693:Anaerobiosis; D056804:Biofuels; D019149:Bioreactors; D008031:Lignin / Q000378:metabolism; D008372:Manure; D012275:Oryza / Q000378:metabolism*
chemical_list: D056804:Biofuels; D008372:Manure; C036909:lignocellulose; D008031:Lignin
keywords: Anaerobic digestion; Biogas; Enzyme activity; Inoculum; Nutrients