title: Effects of different pre-extractions combining with chemi-thermomechanical treatments on the enzymatic hydrolysis of wheat straw.
abstract: Three different pre-extraction methods (i.e., acetic acid, sulfuric acid and sodium hydroxide) were used for the pretreatment followed by chemi-thermomechanical treatments and then enzymatic hydrolysis of wheat straw to produce fermentable sugars. The performance of enzymatic hydrolysis by the synergistic effect of pre-extractions and chemi-thermomechanical treatments was remarkable. Results showed that the pre-extraction combining with the chemi-thermomechanical treatments shorten the enzymatic hydrolysis time and improved the glucose yield at the same enzyme loadings. The chemical components, swelling ability, and crystallinity, as well as the surface morphology of the substrates were changed obviously. All of these changes can affect the accessibility of enzymes to cellulose in the substrates to a certain extent.
authors.affiliation: Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science & Technology, Tianjin 300457, China.
authors.forename: Jinping
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science & Technology, Tianjin 300457, China; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China. Electronic address: wei.liu2009@hotmail.com.
authors.forename: Wei
authors.initials: W
authors.lastname: Liu
authors.affiliation: Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science & Technology, Tianjin 300457, China.
authors.forename: Qingxi
authors.initials: Q
authors.lastname: Hou
authors.affiliation: Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science & Technology, Tianjin 300457, China.
authors.forename: Junwei
authors.initials: J
authors.lastname: Chen
authors.affiliation: Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science & Technology, Tianjin 300457, China.
authors.forename: Ningpan
authors.initials: N
authors.lastname: Xu
authors.affiliation: Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science & Technology, Tianjin 300457, China.
authors.forename: Fuzeng
authors.initials: F
authors.lastname: Ji
mesh_terms: D002482:Cellulose / Q000138:chemical synthesis*; D005947:Glucose / Q000138:chemical synthesis*; D006868:Hydrolysis; D012972:Sodium Hydroxide; D013464:Sulfuric Acids; D014908:Triticum / Q000737:chemistry*
chemical_list: D013464:Sulfuric Acids; D012972:Sodium Hydroxide; D002482:Cellulose; D005947:Glucose; C033158:sulfuric acid
keywords: Chemi-thermomechanical treatment; Enzymatic hydrolysis; Pre-extractions; Wheat straw