Oligomeric proanthocyanidins and method for extracting same

An oligomeric proanthocyanidin, extraction technology, applied in chemical instruments and methods, pharmaceutical formulations, antidote, etc., can solve problems such as large differences in product purity
CN102086185BActive Publication Date: 2013-05-08INSITUTE OF BIOPHYSICS CHINESE ACADEMY OF SCIENCES +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INSITUTE OF BIOPHYSICS CHINESE ACADEMY OF SCIENCES
Publication Date
2013-05-08

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Abstract

The invention provides a method for extracting oligomeric proanthocyanidins (OPC) from OPC-containing plant sources. The method is characterized in that: in the extracting process, conditions of no oxygen or low oxygen and low temperature are kept and a lightproof environment is used. The invention also provides the oligomeric proanthocyanidins extracted by the method; and the oligomeric proanthocyanidins is characterized by being rich in proanthocyanidins oligomers, and the extract can be auto-oxidized under the natural condition. The invention also provides application of proanthocyanidins products prepared by the method in removing superoxide anion radicals O2- and hydroxyl radicals HO.
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Description

technical field

[0001] The present invention relates to a kind of oligomeric proanthocyanidin and its extraction method, especially to the method of high activity proanthocyanidin obtained by solvent extraction and column chromatography and the oligomeric proanthocyanidin obtained by the method under the conditions of avoiding light, deoxidation and low temperature. Proanthocyanidin products. Background technique

[0002] 1. The function of proanthocyanidins

[0003] Proanthocyanidins are a kind of flavanol polyphenolic compounds abundantly present in lingonberries, grape seeds and other fruits. It is also the most important functional component in lingonberry. The main coloring substances are delphinidin (De), cyanidin (Cy), petunidin (Pet), peonidin (Peo) and malvidin (malvidin). ; Mal) composed of numerous anthocyanins and acetylated anthocyanins derived from five pigments, and the types and contents of anthocyanins vary depending on the lingonberry variety. Bilberry ...

Claims

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