Inventors: Ma DXC
Patent Title: Resveratrol imprinted polymer preparation and extraction method for resveratrol
Publication date: 2007
Publication number: CN1978473

Abstract: This invention relates to resveratrol imprinted polymers and the method for the extraction of resveratrol. Imprinted polymer preparation include: take trans-resveratrol as a template elements, and functional monomers: 4-vinyl pyridine, crosslinker: glycol dimethacrylate, initiator: azobisisobutyronitrile all dissolved in acetone, water bath polymerization; Polymer crushing, screening, using acetic acid-methanol to cleared out the template molecule and un-reacted reagents, to product resveratrol imprinted polymer particles. Extracting resveratrol from include: giant knotweed rhizome extracted with methanol, concentration and add in molecular imprinting column, take methanol-water as the mobile phase to separate; collect outflow component, get resveratrol (80% purity) and emodin (90% purity).; The invention of the molecular imprinting stationary phase with high selectivity, and can separate resveratrol cis-isomer, can also separate other structural analogues (including the glycoside of giant knotweed rhizome etc.).
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