title: Cellulose solvent- and organic solvent-based lignocellulose fractionation enabled efficient sugar release from a variety of lignocellulosic feedstocks.
abstract: Developing feedstock-independent biomass pretreatment would be vital to second generation biorefineries that would fully utilize diverse non-food lignocellulosic biomass resources, decrease transportation costs of low energy density feedstock, and conserve natural biodiversity. Cellulose solvent- and organic solvent-based lignocellulose fractionation (COSLIF) was applied to a variety of feedstocks, including Miscanthus, poplar, their mixture, bagasse, wheat straw, and rice straw. Although non-pretreated biomass samples exhibited a large variation in enzymatic digestibility, the COSLIF-pretreated biomass samples exhibited similar high enzymatic glucan digestibilities and fast hydrolysis rates. Glucan digestibilities of most pretreated feedstocks were ∼93% at five filter paper units per gram of glucan. The overall glucose and xylose yields for the Miscanthus:poplar mixture at a weight ratio of 1:2 were 93% and 85%, respectively. These results suggested that COSLIF could be regarded as a feedstock-independent pretreatment suitable for processing diverse feedstocks by adjusting pretreatment residence time only.
authors.affiliation: Biological Systems Engineering Department, 304 Seitz Hall, Virginia Tech, Blacksburg, VA 24061, USA.
authors.forename: Noppadon
authors.initials: N
authors.lastname: Sathitsuksanoh
authors.forename: Zhiguang
authors.initials: Z
authors.lastname: Zhu
authors.forename: Y-H Percival
authors.initials: YH
authors.lastname: Zhang
mesh_terms: D018533:Biomass; D002241:Carbohydrates / Q000032:analysis*; D002480:Cellulase / Q000378:metabolism; D002482:Cellulose / Q000737:chemistry; D005591:Chemical Fractionation / Q000379:methods*; D005936:Glucans / Q000378:metabolism; D006868:Hydrolysis / Q000187:drug effects; D008031:Lignin / Q000378:metabolism*; D009930:Organic Chemicals / Q000494:pharmacology*; D012275:Oryza / Q000737:chemistry; D012997:Solvents / Q000494:pharmacology*; D013499:Surface Properties / Q000187:drug effects; D014908:Triticum / Q000737:chemistry; D014866:Waste Products / Q000032:analysis; D001617:beta-Glucosidase / Q000378:metabolism
chemical_list: D002241:Carbohydrates; D005936:Glucans; D009930:Organic Chemicals; D012997:Solvents; D014866:Waste Products; C036909:lignocellulose; D002482:Cellulose; D008031:Lignin; C027433:bagasse; D001617:beta-Glucosidase; D002480:Cellulase