title: Effects of a steam explosion pretreatment on sugar production by enzymatic hydrolysis and structural properties of reed straw.
abstract: Reed lignocellulose was subjected to a steam explosion pretreatment to obtain a high conversion rate of sugar after subsequent enzymatic hydrolysis using a commercial cellulase mixture. Under conditions of differing temperature (200 °C, 220 °C and 240 °C) and residence time (2, 5, and 8 min), the effect of the pretreatment on the sugar yield from enzymatic hydrolysis was studied. The highest respective reducing sugar and glucose yields were 36.14% and 15.35% after 60-h enzymatic hydrolysis of reed straw that had been pretreated with a steam explosion at 220 °C for 5 min. Fourier transform infrared spectrophotometry (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used in this study to comprehensively investigate the steam explosion-induced changes in the organizational structure and morphological properties of reed straw to analyze the reason for the increased sugar yield from enzymatic hydrolysis after the steam explosion.
authors.affiliation: Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization, Hunan Agricultural University.
authors.forename: Qiulong
authors.initials: Q
authors.lastname: Hu
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Su
authors.forename: Lin
authors.initials: L
authors.lastname: Tan
authors.forename: Xianghua
authors.initials: X
authors.lastname: Liu
authors.forename: Anjun
authors.initials: A
authors.lastname: Wu
authors.forename: Dingding
authors.initials: D
authors.lastname: Su
authors.forename: Kaizhong
authors.initials: K
authors.lastname: Tian
authors.forename: Xingyao
authors.initials: X
authors.lastname: Xiong
mesh_terms: D018533:Biomass; D002480:Cellulase / Q000737:chemistry*; D000431:Ethanol / Q000737:chemistry*; D005107:Explosions; D005947:Glucose / Q000737:chemistry*; D006358:Hot Temperature; D006868:Hydrolysis; D007700:Kinetics; D008031:Lignin / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D006109:Poaceae / Q000737:chemistry* / Q000648:ultrastructure; D017550:Spectroscopy, Fourier Transform Infrared; D013227:Steam; D014961:X-Ray Diffraction
chemical_list: D013227:Steam; C036909:lignocellulose; D000431:Ethanol; D008031:Lignin; D002480:Cellulase; D005947:Glucose