A porous cellulose-based molecular imprinted polymer for specific recognition and enrichment of resveratrol

Carbohydr Polym. 2021 Jan 1:251:117026. doi: 10.1016/j.carbpol.2020.117026. Epub 2020 Sep 15.

Abstract

A novel resveratrol molecularly imprinted polymer (p-CM@MPS@MIP-Res) was prepared on the surface of silanized porous cellulose microspheres (p-CM@MPS) for the first time, and was successfully applied for the efficient enrichment of targeted resveratrol in Polygonum cuspidatum. The adsorption kinetics and adsorption equilibrium of p-CM@MPS@MIP-Res were also studied in detail. Compared with non-molecularly imprinted polymer (p-CM@MPS@NIP), the prepared p-CM@MPS@MIP-Res showed high adsorption capacity for resveratrol, the adsorption capacity of the p-CM@MPS@MIP-Res could reach to 11.56 mg/g. Furthermore, the stability of the p-CM@MPS@MIP-Res was evaluated and the result showed that the p-CM@MPS@MIP-Res could be reused for 5 runs. Finally, the p-CM@MPS@MIP-Res was applied to enrich the resveratrol in Polygonum cuspidatum sample, the content of resveratrol in the extraction solution could be increased greatly from 4.23 % to 23.74 %, indicating the p-CM@MPS@MIP-Res was a promising adsorbent for efficiently separation and enrichment of resveratrol in Polygonum cuspidatum.

Keywords: Molecular imprinted polymer; Porous cellulose microsphere; Resveratrol; Specific recognition; Structural modification.

MeSH terms

  • Adsorption
  • Cellulose / chemistry*
  • Chemical Fractionation
  • Chromatography, High Pressure Liquid / methods
  • Fallopia japonica / chemistry
  • Kinetics
  • Microspheres*
  • Molecular Imprinting
  • Molecularly Imprinted Polymers / chemistry*
  • Polymers / chemistry
  • Porosity
  • Resveratrol / analysis
  • Resveratrol / isolation & purification*

Substances

  • Molecularly Imprinted Polymers
  • Polymers
  • Cellulose
  • Resveratrol