Preparation of novel curcumin‐imprinted polymers based on magnetic multi‐walled carbon nanotubes for the rapid extraction of curcumin from ginger powder and kiwi fruit root |
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| Authors: | Zhaohui Zhang Xing Chen Wei Rao Fang Long Liang Yan Yuli Yin |
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| Affiliation: | 1. College of Chemistry and Chemical Engineering, Jishou University, Jishou, China;2. State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, China |
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| Abstract: | A novel molecularly imprinted polymer based on magnetic phenyl‐modified multi‐walled carbon nanotubes was synthesized using curcumin as the template molecule, methacrylic acid as the functional monomer and ethylene glycol dimethacrylate as the cross‐linker. The phenyl groups contained in the magnetic imprinted polymers acted as the assisting functional monomer. The magnetic imprinted polymers were characterized by scanning electron microscopy, Fourier‐transform infrared spectroscopy and vibrating sample magnetometry. Adsorption studies demonstrated that the magnetic imprinted polymers possessed excellent selectivity toward curcumin with a maximum capacity of 16.80 mg/g. Combining magnetic extraction and high‐performance liquid chromatography technology, the magnetic imprinted polymer based on magnetic phenyl‐modified multi‐walled carbon nanotubes was applied for the rapid separation and enrichment of curcumin from ginger powder and kiwi fruit root successfully. |
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| Keywords: | Curcumin Magnetic materials Molecularly imprinted polymers Multi‐walled carbon nanotubes Solid‐phase extraction |
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