title: Magnetic molecularly imprinted polymers for spectrophotometric quantification of curcumin in food.
abstract: Herein, we present a simple and rapid method for monitoring curcumin in food samples using a magnetic molecularly imprinted technique combined with ultraviolet-visible (UV-Vis) spectrophotometry. Magnetic molecularly imprinted polymers (mag-MIPs) were first synthesized by fabricating MIPs on to the surface of Fe3O4 nanobeads using curcumin as a template and methacrylic acid as a functional monomer. The obtained mag-MIPs were evaluated in detail with different techniques (such as binding isotherm, Scatchard analysis, and selectivity) and various adsorption experiments. Finally, mag-MIPs were constructed and UV-Vis spectrophotometry was used to quantify curcumin under optimized conditions. Good recoveries between 79.37% and 88.89% were obtained with the limits of detection and quantification of 1.31 and 4.38μg/mL, respectively.
authors.affiliation: College of Food Science and Technology, Bohai University, Food Safety Key Lab of Liaoning Province, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, Liaoning 121013, China.
authors.forename: Xiuying
authors.initials: X
authors.lastname: Liu
authors.affiliation: College of Food Science and Technology, Bohai University, Food Safety Key Lab of Liaoning Province, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, Liaoning 121013, China.
authors.forename: Lijie
authors.initials: L
authors.lastname: Zhu
authors.affiliation: College of Food Science and Technology, Bohai University, Food Safety Key Lab of Liaoning Province, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, Liaoning 121013, China.
authors.forename: Xue
authors.initials: X
authors.lastname: Gao
authors.affiliation: College of Food Science and Technology, Bohai University, Food Safety Key Lab of Liaoning Province, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, Liaoning 121013, China.
authors.forename: Yuxin
authors.initials: Y
authors.lastname: Wang
authors.affiliation: College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, China.
authors.forename: Haixia
authors.initials: H
authors.lastname: Lu
authors.affiliation: College of Food Science and Technology, Bohai University, Food Safety Key Lab of Liaoning Province, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, Liaoning 121013, China. Electronic address: tangyiwei81@163.com.
authors.forename: Yiwei
authors.initials: Y
authors.lastname: Tang
authors.affiliation: College of Food Science and Technology, Bohai University, Food Safety Key Lab of Liaoning Province, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, Liaoning 121013, China. Electronic address: lijr6491@163.com.
authors.forename: Jianrong
authors.initials: J
authors.lastname: Li
mesh_terms: D000327:Adsorption; D003474:Curcumin / Q000032:analysis*; D005290:Ferric Compounds; D005504:Food Analysis; D008280:Magnetics; D054802:Molecular Imprinting / Q000379:methods*; D049329:Nanostructures / Q000737:chemistry; D011109:Polymethacrylic Acids; D013056:Spectrophotometry, Ultraviolet
chemical_list: D005290:Ferric Compounds; D011109:Polymethacrylic Acids; C000499:ferric oxide; D003474:Curcumin
keywords: Curcumin; Magnetic molecularly imprinted polymers; Solid phase extraction