Preparation and Binding Characteristics of Molecularly Imprinted Polymers for Capsaicin

摘要：

　　To isolate capsaicin effectively,molecular imprinted polymers (MIPs) with capsaicin were synthesized with methacrylicacid (MAA) as function monomers,ethyleneglycol dimethacrylate (EGDMA) as cross linker by non-covalent method.Technological parameters for the preparation of MIPs were optimized by L9(34) orthogonal test.The static equilibrium binding and recognition properties of MIPs to capsaicin were also investigated.The surface structure of the MIPs was visualized by scanning electron micrography.The results show that the optimistic composition of MIP is as following:0.25 mmol capsaicin,7.0 mL acetonitrile,3.0 mL ethylether,1.25 mmol MAA and 100 μL 80% tween-80.The adsorption isotherms indicates that the MIPs show a good imprinting effect (QMIPs=23.44 mg/g).The MIPs have the specific recognition selectivity for capsaicin in the mixture.Thus,compared with zingerone and piperine which are similar in molecular structure and property to capsaicin,the MIPs show a good selectivity and intense recognition of the template molecule.

关键词： Capsaicin Molecular imprinted polymers Adsorption selectivity

作者: Jing Sun Ning Peng Wenxiang Ao Xuesong Huang

作者单位: Department of Food Science and Engineering, Jinan University, Guangzhou 510632, China

会议类型: 国际会议

会议名称: the 2012 International Conference on Frontiers of Advanced Materials and Engineering Technology (2012年先进材料与工程技术国际会议(FAMET 2012))

会议地点: 厦门

会议语种:英文

页码: 582-585

在线出版日期: 2012-01-04（万方平台首次上网日期，不代表论文的发表时间）