title: Liquid hot water pretreatment of lignocellulosic biomass for bioethanol production accompanying with high valuable products.
abstract: Pretreatment is an essential prerequisite to overcome recalcitrance of biomass and enhance the ethanol conversion efficiency of polysaccharides. Compared with other pretreatment methods, liquid hot water (LHW) pretreatment not only reduces the downstream pressure by making cellulose more accessible to the enzymes but minimizes the formation of degradation products that inhibit the growth of fermentative microorganisms. Herein, this review summarized the improved LHW process for different biomass feedstocks, the decomposition behavior of biomass in the LHW process, the enzymatic hydrolysis of LHW-treated substrates, and production of high value-added products and ethanol. Moreover, a combined process producing ethanol and high value-added products was proposed basing on the works of Guangzhou Institute of Energy Conversion to make LHW pretreatment acceptable in the biorefinery of cellulosic ethanol.
authors.affiliation: Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Xinshu
authors.initials: X
authors.lastname: Zhuang
authors.affiliation: Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Wen
authors.initials: W
authors.lastname: Wang
authors.affiliation: Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Yu
authors.affiliation: Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Qi
authors.affiliation: Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; University of Chinese Academic of Sciences, Beijing 100039, China.
authors.forename: Qiong
authors.initials: Q
authors.lastname: Wang
authors.affiliation: Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Xuesong
authors.initials: X
authors.lastname: Tan
authors.affiliation: Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Guixiong
authors.initials: G
authors.lastname: Zhou
authors.affiliation: Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China. Electronic address: yuanzh@ms.giec.ac.cn.
authors.forename: Zhenhong
authors.initials: Z
authors.lastname: Yuan
mesh_terms: D056804:Biofuels / Q000032:analysis*; D018533:Biomass; D000431:Ethanol / Q000737:chemistry / Q000378:metabolism*; D006358:Hot Temperature; D008031:Lignin / Q000737:chemistry*; D014867:Water
chemical_list: D056804:Biofuels; D014867:Water; C036909:lignocellulose; D000431:Ethanol; D008031:Lignin
keywords: Cellulosic ethanol; High value products; Lignocellulosic biomass; Liquid hot water pretreatment