title: Effect of hydrothermal pretreatment on Miscanthus anaerobic digestion.
abstract: Miscanthus is a promising source of bioenergy with high lignocellulose content. This paper studied the effect of hydrothermal pretreatment on Miscanthus biogas production. Different pretreatment temperature from 125 to 200°C was tested. After pretreatment, hemicellulose was partially removed and this led to a change in cellulose accessibility. Enzymatic hydrolysis was used to examine the digestibility of different samples. There was no obvious enhancement in low temperature (125 and 150°C) conditions. According to the results, 200°C hydrothermal pretreatment was the optimal condition saving 50% on the digestion time and increasing glucose production 13.2 times compared with the raw material. Although the cellulose crystallinity increased after the pretreatment, its effect on biogas production and enzymatic hydrolysis was limited.
authors.affiliation: Key Laboratory of Yangtze River Water Environment for Ministry of Education, School of Environmental Science and Technology, Tongji University, Shanghai 200092, China. Electronic address: zhouxuefei@tongji.edu.cn.
authors.forename: Xuefei
authors.initials: X
authors.lastname: Zhou
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Technology, Tongji University, Shanghai 200092, China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Li
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Technology, Tongji University, Shanghai 200092, China.
authors.forename: Yalei
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Technology, Tongji University, Shanghai 200092, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Gu
mesh_terms: D000693:Anaerobiosis; D056804:Biofuels; D001709:Biotechnology / Q000379:methods*; D002482:Cellulose / Q000737:chemistry / Q000378:metabolism; D005947:Glucose / Q000096:biosynthesis; D006868:Hydrolysis; D008031:Lignin / Q000737:chemistry / Q000378:metabolism; D008697:Methane / Q000096:biosynthesis; D006109:Poaceae / Q000737:chemistry* / Q000378:metabolism*; D011134:Polysaccharides / Q000737:chemistry / Q000378:metabolism
chemical_list: D056804:Biofuels; D011134:Polysaccharides; C036909:lignocellulose; C007916:hemicellulose; D002482:Cellulose; D008031:Lignin; D005947:Glucose; D008697:Methane
keywords: Anaerobic digestion; Biogas; Hydrothermal pretreatment; Miscanthus