title: Modeling laccase-induced lignin removal in prehydrolysis liquor from kraft-based dissolving pulp production.
abstract: Laccase treatment is a promising approach to remove lignin from prehydrolysis liquor (PHL) for value added utilization of hemicellulose rich waste streams. Modeling the lignin removal process is of practical interest for prediction and control of laccase treatment of PHL. The present study focused on the lignin removal through variation of laccase charge and treatment time. Results showed that the lignin removal may be divided into two phases, i.e. a fast initial phase followed by a second slow phase. A kinetic model based on the experimental results was developed, which can be used to predict the lignin removal of PHL during the laccase treatment.
authors.affiliation: Key Lab of Pulp & Paper Science and Technology of the Ministry of Education, Qilu University of Technology, Jinan, Shandong Province 250353, PR China; State Key Laboratory of Pulp & Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province 510640, PR China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Wang
authors.affiliation: Key Lab of Pulp & Paper Science and Technology of the Ministry of Education, Qilu University of Technology, Jinan, Shandong Province 250353, PR China.
authors.forename: Shanshan
authors.initials: S
authors.lastname: Liu
authors.affiliation: Key Lab of Pulp & Paper Science and Technology of the Ministry of Education, Qilu University of Technology, Jinan, Shandong Province 250353, PR China.
authors.forename: Guihua
authors.initials: G
authors.lastname: Yang
authors.affiliation: Key Lab of Pulp & Paper Science and Technology of the Ministry of Education, Qilu University of Technology, Jinan, Shandong Province 250353, PR China.
authors.forename: Jiachuan
authors.initials: J
authors.lastname: Chen
mesh_terms: D001709:Biotechnology / Q000379:methods*; D006868:Hydrolysis; D007220:Industrial Waste; D007700:Kinetics; D042845:Laccase / Q000737:chemistry / Q000378:metabolism*; D008031:Lignin / Q000302:isolation & purification / Q000378:metabolism*; D008962:Models, Theoretical; D011134:Polysaccharides / Q000737:chemistry / Q000378:metabolism; D014866:Waste Products; D014934:Wood / Q000737:chemistry*
chemical_list: D007220:Industrial Waste; D011134:Polysaccharides; D014866:Waste Products; C007916:hemicellulose; D008031:Lignin; D042845:Laccase
keywords: Laccase; Lignin removal; Modeling; Prehydrolysis liquor