title: Analysis of particle size reduction on overall surface area and enzymatic hydrolysis yield of corn stover.
abstract: Particle size of lignocellulose materials is an important factor for enzymatic hydrolysis efficiency. In this study, corn stover was milled and sieved into different size fractions from 1.42, 0.69, 0.34, to 0.21 mm, and the corresponding enzymatic hydrolysis yields were 24.69, 23.96, 25.34, and 26.97 %, respectively. The results indicate that the hydrolysis yield is approximately constant with changing corn stover particle sizes in the experimental range. The overall surface area and the inner pore size measurement show that the overall specific surface area was less than 2 % with the half reduction of particle size due to the greater inner pore surface area. The scanning electron microscope photographs gave direct evidence of the much greater inner pore surface area of corn stover particles. This result provided a reference when a proper size reduction of lignocellulose materials is considered in biorefining operations.
authors.affiliation: State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China.
authors.forename: Hanjie
authors.initials: H
authors.lastname: Li
authors.forename: Chenlin
authors.initials: C
authors.lastname: Ye
authors.forename: Ke
authors.initials: K
authors.lastname: Liu
authors.forename: Hanqi
authors.initials: H
authors.lastname: Gu
authors.forename: Weitao
authors.initials: W
authors.lastname: Du
authors.forename: Jie
authors.initials: J
authors.lastname: Bao
mesh_terms: D002851:Chromatography, High Pressure Liquid; D004798:Enzymes / Q000378:metabolism*; D006868:Hydrolysis; D008855:Microscopy, Electron, Scanning; D010316:Particle Size; D003313:Zea mays / Q000378:metabolism*
chemical_list: D004798:Enzymes