Rosmarinic acid separation from Perilla frutescens leaf extract utilizing acid-resistant magnetic molecularly imprinted polymers with boronate affinity

文献类型： 外文期刊

第一作者： Feng, Chunte

作者： Feng, Chunte;Gao, Hongfei;Yang, Yang;Yang, Xinyu;Yang, Lei;Tian, Hao;Gu, Huiyan

作者机构：

关键词： Lysozyme; Boronate affinity; Magnetic molecularly imprinted polymers; Rosmarinic acid; Perilla frutescens leaf extract

期刊名称：INDUSTRIAL CROPS AND PRODUCTS （ 影响因子：6.2； 五年影响因子：6.2 ）

ISSN： 0926-6690

年卷期： 2024 年 222 卷

页码：

收录情况： SCI

摘要： In this study, an acid-resistant magnetic boron-modified molecularly imprinted polymer (Fe3O4@NH2@BA@Lyz- 3 O 4 @NH 2 @BA@Lyz- MIPs) was prepared by the phase transition of lysozyme and used for the selective recognition and separation of rosmarinic acid from Perilla frutescens leaf extract. The synthesized materials were characterized by thermogravimetric analysis (TG), infrared spectroscopy (FT-IR), electron microscopy (SEM), and vibrating sample magnetometry (VSM). The adsorption and desorption experiments, adsorption kinetics experiments, and adsorption thermodynamics experiments revelated that the Fe3O4@NH2@BA@Lyz-MIPs exhibited a better adsorption capacity for rosmarinic acid (6.31 mg/g). Furthermore, Fe3O4@NH2@BA@Lyz-MIPs still exhibit a good adsorption performance after 8 adsorption-desorption cycles. The adsorption capacity decreased by 8.12 %, and the desorption performance decreased to 78.84 %. Stability experiments showed that the prepared imprinted layer was not destroyed by the eluent and could protect the internal magnetic core of the material. In summary, the prepared molecularly imprinted polymer Fe3O4@NH2@BA@Lyz-MIPs has good selective adsorption and high acid stability and can be swiftly retrieved from solution with the aid of an applied magnetic field, which provides a rapid and environmentally friendly strategy for the separation of rosmarinic acid from a complicated matrix.

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