Highly-efficient selective recognition and rapid enrichment of chrysin by magnetic surface molecularly imprinted polymer. (30th March 2023)

• Record Type: Journal Article
• Authors: Kuang, Yi; Chen, Wei; Chen, Zhouhan; Xia, Yunlong; Rao, Qingqing; Yang, Shengxiang
• Is Part Of: Food chemistry. Volume 405:Part B(2023)
• Publication Date: 2023-03-30
• Subjects: Magnetic molecularly imprinted polymer -- Surface imprinting method -- Chrysin -- Selective adsorption -- Propolis; Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; 664
• DOI: 10.1016/j.foodchem.2022.134993
• Languages: English
• ISSNs: 0308-8146

Abstract

Graphical abstract: Highlights: A magnetic imprinted polymer was fabricated to selectively adsorb chrysin. Chrysin/SMIPs can be rapidly separated from mixture within 10 s by the magnet. Chrysin/SMIPs achieve prominent selectivity adsorption and reusability for chrysin. Chrysin/SMIPs can be applied in enrichment of chrysin from real propolis samples. Abstract: As an important natural nutrient-like substance, chrysin is highly desirable in the field of health food. Here, to achieve the specific and efficient adsorption of chrysin, a magnetic surface molecularly imprinted polymer (chrysin/SMIPs) was fabricated by free radical polymerization of methacrylic acid onto the surface of functionalized magnetic Fe3 O4 nanoparticles. The obtained chrysin/SMIPs showed favorable binding ability towards chrysin with 35.27 mg·g −1 maximum adsorption capacity in 20 min, prominent reusability with 9 cycles of adsorption–desorption and superior specific recognition with imprinting factor ( IF ) of 2.87 and selectivity coefficient ( K ) of 8.74, 5.64 and 8.64 corresponding to the interferents of genistein, daidzein and quercetin, respectively. Moreover, the chrysin/SMIPs showed high recoveries (91.13 % to 95.12 %) and precisions (RSDs from 2.51 % to 1.32 %) in the extraction of chrysin from real propolis samples. Therefore, chrysin/SMIPs is highly promising for the selective enrichment recovery of chrysin in health food.