Preparation and characterization of magnetic molecularly imprinted polymer for specific adsorption of wheat gliadin
文献类型： 外文期刊
作者： Zhang, Kangyi 1 ; Wang, Yufei 4 ; Wen, Qingyu 1 ; Huang, Qingrong 5 ; Li, Tianqi 6 ; Zhang, Yu 6 ; Luo, Denglin 8 ;
作者机构： 1.Henan Acad Agr Sci, Ctr Agr Prod Proc, Zhengzhou 450002, Peoples R China
2.Henan Int Joint Lab Whole Grain Wheat Prod Proc, Zhengzhou 450002, Peoples R China
3.Henan Prov Whole Grain Fresh Food Proc Engn Techno, Zhengzhou 450002, Peoples R China
4.North Univ China, Sch Chem Engn & Technol, Taiyuan 038507, Peoples R China
5.Rutgers State Univ, Dept Food Sci, New Brunswick, NJ 08901 USA
6.Henan Ankang Food Sci & Technol Res Inst, Zhengzhou 450046, Peoples R China
7.Henan Ankang Future Food Technol Co Ltd, Zhengzhou 450066, Peoples R China
8.Henan Univ Sci & Technol, Sch Food & Bioengn, Luoyang 471023, Peoples R China
关键词： Molecularly imprinted polymers; Gliadin; Superparamagnetic; Adsorption separation
期刊名称：JOURNAL OF MOLECULAR STRUCTURE （ 影响因子：3.841； 五年影响因子：3.138 ）
ISSN： 0022-2860
年卷期： 2022 年 1265 卷
页码：
收录情况： SCI
摘要： In this study, a magnetic molecularly imprinted polymers (MIPs) was successfully synthesized by surface imprinting technology for the specific recognition of wheat gliadin (GLI). MIPs showed an obvious hierarchical characteristic by investigations of micromorphology, the magnetic Fe3O4 core were wrapped with SiO2 layer (approximately 40 nm) and imprinted layer (approximately 10 nm). The results of vibrating sample magnetometer (VSM) proved the superparamagnetism of MIPs, which was contributed to the rapid magnetic separation. Furthermore, MIPs displayed excellent selective adsorption ability for GLI through adsorption kinetic model, adsorption isotherm model and adsorption selectivity experiment. The saturated adsorption capacity of MIPs to GLI was 73.55 mg/g under the optimized conditions and the imprinting factor was 3.10. The high performance liquid chromatography (HPLC) manifested that the MIPs were successfully applied to separate template GLI from gluten, reflecting the excellent adsorption specificity of MIPs. Therefore, this research provided a promising method for rapidly separation and specific adsorption of GLI.(c) 2022 Elsevier B.V. All rights reserved.
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