title: Hydrodynamic cavitation as an efficient pretreatment method for lignocellulosic biomass: A parametric study.
abstract: Hydrodynamic cavitation (HC), which is a highly destructive force, was employed for pretreatment of sugarcane bagasse (SCB). The efficacy of HC was studied using response surface methodology (RSM) with determining parameters varied: inlet pressure of 1-3bar, temperature of 40-70°C, and alkaline concentration of 0.1-0.3M. At the best condition (3bar, 70°C and 0.3M NaOH), 93.05% and 94.45% of hydrolysis yield of cellulose and hemicellulose, respectively, were obtained within 30min of pretreatment time. Also, pretreatment time higher than 10min had little to do regarding to SCB composition changes using different orifice plates (16 and 27 holes, with corresponding cavitation number of 0.017 and 0.048, respectively), with higher hydrolysis yield observed at 20min of process. Therefore, HC-based approach could lead to a high yield of hydrolysis, as long as a treatment condition was right; it could be so at mild conditions and at short running time.
authors.affiliation: Department of Biotechnology, Engineering School of Lorena, University of São Paulo, CEP 12602-810, Brazil. Electronic address: teran-2017@usp.br.
authors.forename: Ruly
authors.initials: R
authors.lastname: Terán Hilares
authors.affiliation: Department of Biotechnology, Engineering School of Lorena, University of São Paulo, CEP 12602-810, Brazil.
authors.forename: Gabriela Faria
authors.initials: GF
authors.lastname: de Almeida
authors.affiliation: Department of Civil and Environmental Engineering, KAIST, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea.
authors.forename: Muhammad Ajaz
authors.initials: MA
authors.lastname: Ahmed
authors.affiliation: Department of Biotechnology, Engineering School of Lorena, University of São Paulo, CEP 12602-810, Brazil.
authors.forename: Felipe A F
authors.initials: FAF
authors.lastname: Antunes
authors.affiliation: Department of Biotechnology, Engineering School of Lorena, University of São Paulo, CEP 12602-810, Brazil.
authors.forename: Silvio Silvério
authors.initials: SS
authors.lastname: da Silva
authors.affiliation: Department of Civil and Environmental Engineering, KAIST, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea.
authors.forename: Jong-In
authors.initials: JI
authors.lastname: Han
authors.affiliation: Department of Biotechnology, Engineering School of Lorena, University of São Paulo, CEP 12602-810, Brazil.
authors.forename: Júlio César Dos
authors.initials: JCD
authors.lastname: Santos
mesh_terms: D018533:Biomass; D002482:Cellulose; D057446:Hydrodynamics; D006868:Hydrolysis; D008031:Lignin; D031786:Saccharum
chemical_list: D002482:Cellulose; D008031:Lignin
keywords: Enzymatic digestibility; Hydrodynamic cavitation; Lignocellulosic biomass; Pretreatment; Sugarcane bagasse