Process for enriching and purifying capsaicin with macroporous adsorption resin

Abstract

The present invention relates to the process of extracting capasaicin from chili fruit or peel and preparing natural capsaicin crystal. Capsaicin is obtained through organic solvent extraction of thespicy component from chili fruit or peel, depressing concentration and separation and purification with macroporous adsorption resin. Liquid chromatographic test shows that the extract has total content of capsaicin and dihydrocapsaicin up to 33%. Re-crystallizing the macroporous adsorption resin purified extract may obtain natural capsaicin crystal with capsaicin, dihydrocapsaicin and nordihydrocapsaicin in the total content up to 97%.

Description

technical field

[0001] The invention relates to a method for extracting capsaicin-containing extract from capsicum fruit or pericarp by a macroporous adsorption resin method, and separating and purifying the extract to prepare natural capsaicin crystals. Background technique

[0002] Macroporous adsorption resin is a kind of cross-linked polymer without ion-exchange groups. It has stable physical and chemical properties and is insoluble in acids, alkalis and organic solvents. It can concentrate and separate organic matter and is not affected by inorganic salts, strong ions and low Interference of molecular compounds. Macroporous adsorption resin selectively adsorbs organic substances through physical adsorption to achieve the purpose of separation and purification. According to the surface properties of the resin, it can be divided into three categories: non-polar, medium polar and polar.

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