Studies on α-lipoic acid molecularly imprinted membrane and its antioxidant properties

Authors

YANG Bowen, School of Liquor and Food Engineering, Guizhou University, Guiyang, Guizhou 550025, China
CHEN Yuqin, School of Liquor and Food Engineering, Guizhou University, Guiyang, Guizhou 550025, China
ZHU Qiujin, School of Liquor and Food Engineering, Guizhou University, Guiyang, Guizhou 550025, China; Key Laboratory of Agricultural & Animal Products Store and Processing of Guizhou Province, Guiyang, Guizhou 550025, China

Abstract

Thermo-sensitive α-lipoic acid molecularly imprinted polymers (ALA-MIPs) were synthesized through pre-polymerization using α-lipoic acid as a functional monomer and N-vinylcaprolactam (NVCL) as both thermo-sensitive monomer and functional monomer. Poly(acrylonitrile) (PAN) and Poly(vinylidene fluoride) (PVDF) were used as the main raw material to synthesis molecularly imprinted membranes through the heterogeneous particle-filling method by adding ALA-MIPs. The morphology of the molecularly imprinted membrane(MIM) was investigated by scanning electron microscopy. The mechanical properties, hydrophilic properties, water absorption abilities, and ALA release properties of the membrane were also investigated. The results show that the PVDF membrane has better mechanical properties and hydrophobic properties when adding PVDF for 12 g/100 g, whereas the PAN membrane has better release abilities of ALA at 20 ℃. By measuring the POV value of rapeseed oils, the PAN-MIM was found to has better antioxidant effects.

Publication Date

8-28-2018

First Page

94

Last Page

100

DOI

10.13652/j.issn.1003-5788.2018.08.019

Recommended Citation

Bowen, YANG; Yuqin, CHEN; and Qiujin, ZHU (2018) "Studies on α-lipoic acid molecularly imprinted membrane and its antioxidant properties," Food and Machinery: Vol. 34: Iss. 8, Article 19.
DOI: 10.13652/j.issn.1003-5788.2018.08.019
Available at: https://www.ifoodmm.cn/journal/vol34/iss8/19

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