title: Kinetic and thermodynamic studies of sulforaphane adsorption on macroporous resin.
abstract: The adsorption equilibrium, kinetic and thermodynamic of sulforaphane (SF) adsorption onto macroporous resin in aqueous phase were studied. The SP850 resin was screened as the appropriate resin for SF purification. From the equilibrium studies, the Redlich-Peterson model was found to be the best for description of the adsorption behavior of SF onto SP850 resin, followed by the Freundlich model and the Langmuir model. Batch equilibrium experiments demonstrated that, in the examined temperature range, the equilibrium adsorption capacity of SP850 resin decreased with increasing adsorption temperature. Thermodynamics studies indicated that the adsorption of SF was a physical, exothermic, and spontaneous process. The adsorption kinetics revealed that the pseudo-second-order kinetic model was suitable to characterize the kinetics of adsorption of SF onto SP850. Finally, the intra-particle diffusion model demonstrated that SF diffused quickly into macropores, and that diffusion slowed down in the meso- and micropores.
authors.affiliation: School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China; Zhejiang Provincial Key Lab for Chem & Bio Processing Technology of Farm Produces, Hangzhou, 310023, Zhejiang, China; Zhejiang Provincial Collaborative Innovation Center of Agricultural Biological Resources Biochemical Manufacturing, Hangzhou, 310023, Zhejiang, China. Electronic address: wuyuanfeng@zju.edu.cn.
authors.forename: Wu
authors.initials: W
authors.lastname: Yuanfeng
authors.affiliation: School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China; Zhejiang Provincial Key Lab for Chem & Bio Processing Technology of Farm Produces, Hangzhou, 310023, Zhejiang, China; Zhejiang Provincial Collaborative Innovation Center of Agricultural Biological Resources Biochemical Manufacturing, Hangzhou, 310023, Zhejiang, China. Electronic address: Papaver_rhoeas@126.com.
authors.forename: Zhang
authors.initials: Z
authors.lastname: Lei
authors.affiliation: School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China; Zhejiang Provincial Key Lab for Chem & Bio Processing Technology of Farm Produces, Hangzhou, 310023, Zhejiang, China; Zhejiang Provincial Collaborative Innovation Center of Agricultural Biological Resources Biochemical Manufacturing, Hangzhou, 310023, Zhejiang, China. Electronic address: zjhzmjw@163.com.
authors.forename: Mao
authors.initials: M
authors.lastname: Jianwei
authors.affiliation: School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China; Zhejiang Provincial Key Lab for Chem & Bio Processing Technology of Farm Produces, Hangzhou, 310023, Zhejiang, China; Zhejiang Provincial Collaborative Innovation Center of Agricultural Biological Resources Biochemical Manufacturing, Hangzhou, 310023, Zhejiang, China. Electronic address: shiwangliu@163.com.
authors.forename: Liu
authors.initials: L
authors.lastname: Shiwang
authors.affiliation: School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China; Zhejiang Provincial Key Lab for Chem & Bio Processing Technology of Farm Produces, Hangzhou, 310023, Zhejiang, China; Zhejiang Provincial Collaborative Innovation Center of Agricultural Biological Resources Biochemical Manufacturing, Hangzhou, 310023, Zhejiang, China. Electronic address: hjunlzr@163.com.
authors.forename: Huang
authors.initials: H
authors.lastname: Jun
authors.affiliation: School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, Zhejiang, China; Zhejiang Provincial Key Lab for Chem & Bio Processing Technology of Farm Produces, Hangzhou, 310023, Zhejiang, China; Zhejiang Provincial Collaborative Innovation Center of Agricultural Biological Resources Biochemical Manufacturing, Hangzhou, 310023, Zhejiang, China. Electronic address: youyuru0130@163.com.
authors.forename: You
authors.initials: Y
authors.lastname: Yuru
authors.affiliation: Department of Chemical and Biochemical Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, China; Ningbo Institute of Technology, Zhejiang University, Ningbo, 315100, Zhejiang, China. Electronic address: meilh@zju.edu.cn.
authors.forename: Mei
authors.initials: M
authors.lastname: Lehe
mesh_terms: D000327:Adsorption; D016588:Anticarcinogenic Agents / Q000737:chemistry / Q000302:isolation & purification*; D001937:Brassica / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D004058:Diffusion; D017879:Isothiocyanates / Q000737:chemistry / Q000302:isolation & purification*; D007700:Kinetics; D016062:Porosity; D012117:Resins, Synthetic / Q000737:chemistry; D013454:Sulfoxides; D013816:Thermodynamics
chemical_list: D016588:Anticarcinogenic Agents; D017879:Isothiocyanates; D012117:Resins, Synthetic; D013454:Sulfoxides; C016766:sulforaphane
keywords: Adsorption; Isotherm; Kinetic; Macroporous resin; Sulforaphane; Thermodynamic