title: Powerful peracetic acid-ionic liquid pretreatment process for the efficient chemical hydrolysis of lignocellulosic biomass.
abstract: The aim of this work was to design a new method for the efficient saccharification of lignocellulosic biomass (LB) using a combination of peracetic acid (PAA) pretreatment with ionic liquid (IL)-HCl hydrolysis. The pretreatment of LBs with PAA disrupted the lignin fractions, enhanced the dissolution of LB and led to a significant increase in the initial rate of the IL-HCl hydrolysis. The pretreatment of Bagasse with PAA prior to its 1-buthyl-3-methylimidazolium chloride ([Bmim][Cl])-HCl hydrolysis, led to an improvement in the cellulose conversion from 20% to 70% in 1.5h. Interestingly, the 1-buthyl-3-methylpyridium chloride ([Bmpy][Cl])-HCl hydrolysis of Bagasse gave a cellulose conversion greater than 80%, with or without the PAA pretreatment. For LB derived from seaweed waste, the cellulose conversion reached 98% in 1h. The strong hydrolysis power of [Bmpy][Cl] was attributed to its ability to transform cellulose I to II, and lowering the degree of polymerization of cellulose.
authors.affiliation: Department of Aquatic Products Technology, Bogor Agricultural University, Jl. Lingkar Akademik Kampus IPB Darmaga, Bogor 16680, Indonesia; Surfactant and Bioenergy Research Center, Bogor Agricultural University, Jl. Pajajaran No. 1, Kampus IPB Baranangsiang, Bogor 16144, Indonesia. Electronic address: ujusadi@ipb.ac.id.
authors.lastname: Uju
authors.affiliation: Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Division of Biotechnology, Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
authors.forename: Masahiro
authors.initials: M
authors.lastname: Goto
authors.affiliation: Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Division of Biotechnology, Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
authors.forename: Noriho
authors.initials: N
authors.lastname: Kamiya
mesh_terms: D018533:Biomass; D001709:Biotechnology / Q000379:methods*; D002482:Cellulose / Q000737:chemistry; D006851:Hydrochloric Acid / Q000494:pharmacology; D006868:Hydrolysis; D007093:Imidazoles / Q000494:pharmacology; D052578:Ionic Liquids / Q000494:pharmacology*; D008031:Lignin / Q000737:chemistry*; D010463:Peracetic Acid / Q000494:pharmacology*; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D007093:Imidazoles; D052578:Ionic Liquids; C036909:lignocellulose; C502841:1-butyl-3-methylimidazolium chloride; D002482:Cellulose; D008031:Lignin; C027433:bagasse; D010463:Peracetic Acid; D006851:Hydrochloric Acid
keywords: Hydrolysis; Ionic liquid; Lignocellulosic biomass; Peracetic acid