title: Effects of cutting orientation in poplar wood biomass size reduction on enzymatic hydrolysis sugar yield.
abstract: The aim of this study was to understand how cutting orientation in poplar wood biomass size reduction affects enzymatic hydrolysis sugar yield of wood particles. A metal cutting (milling) machine was used to produce poplar wood particles from three cutting orientations. Results showed that cutting orientation significantly affected enzymatic hydrolysis sugar yield of wood particles. In this study, size reduction from the optimum cutting orientation produced 50% more sugars than the other two cutting orientations. Particles from the cutting orientation with the highest sugar yield had a large enzyme accessible area (125 mg orange dye/g biomass, as evaluated by Simons' stain procedure) and low crystallinity (50% crystallinity index, as calculated by the Segal method). Furthermore, small particle size did not necessarily lead to improvement in enzymatic digestibility.
authors.affiliation: Department of Industrial and Manufacturing Systems Engineering, Kansas State University, Manhattan, KS 66506, United States. Electronic address: meng@ksu.edu.
authors.forename: Meng
authors.initials: M
authors.lastname: Zhang
authors.affiliation: School of Chemical Engineering and Bioengineering, Washington State University, Richland, WA 99354, United States; School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki Prefecture 305-8571, Japan.
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Ju
authors.affiliation: Department of Industrial and Manufacturing Systems Engineering, Kansas State University, Manhattan, KS 66506, United States.
authors.forename: Xiaoxu
authors.initials: X
authors.lastname: Song
authors.affiliation: School of Chemical Engineering and Bioengineering, Washington State University, Richland, WA 99354, United States.
authors.forename: Xiao
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Department of Industrial and Manufacturing Systems Engineering, Kansas State University, Manhattan, KS 66506, United States.
authors.forename: Z J
authors.initials: ZJ
authors.lastname: Pei
authors.affiliation: Department of Biological and Agricultural Engineering, Kansas State University, Manhattan, KS 66506, United States.
authors.forename: Donghai
authors.initials: D
authors.lastname: Wang
mesh_terms: D018533:Biomass; D002480:Cellulase / Q000737:chemistry*; D002482:Cellulose / Q000737:chemistry*; D003460:Crystallization; D005947:Glucose / Q000737:chemistry; D006868:Hydrolysis; D010316:Particle Size; D032107:Populus; D013499:Surface Properties; D014197:Trees; D014934:Wood
chemical_list: D002482:Cellulose; D002480:Cellulase; D005947:Glucose
keywords: Crystallinity; Enzymatic hydrolysis; Orientation; Particle size; Surface area