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    Polygonum multiflorum

    Polygonum multiflorum is used in traditional Chinese medicine as a tonic and an anti-aging remedy. There is insufficient scientific evidence to determine its effectiveness for any treatment. Characterzation of polyphenolic compounds in the stems of P. multiflorum was conducted using HPLC, high resolution LC-MS and LC-MSn. Proanthocyanidins in particular were isolated in 4.8% yield using solvent extraction followed by Sephadex LH-20 fractionation. HPLC analysis using a diol column revealed oligomers (from dimer to nonamer) as minor components, with (epi)catechin monomeric units predominating, and oligomers with higher degree of polymerization being dominant. Thiolysis treatment of the proanthocyanidins using mercaptoacetic acid produced thioether derivatives of (epi)catechin as the major product and a mean value of the degree of polymerization of 32.6 was estimated from the ratio of terminal and extension units of the (epi)catechin. The isolated proanthocyanidins were shown to strongly inhibit α-amylase with an acarbose equivalence (AE) value of 1,954.7 µmol AE/g.

    Polygonum multiflorum
    Research products of Polygonum multiflorum
    Catalog Product Name CAS Number Manual
    CFN98834Emodin518-82-1  PDF
    CFN98751Chrysophanol481-74-3  PDF
    CFN98749Aloeemodin481-72-1  PDF
    CFN98848Physcion521-61-9  PDF
    CFN99157Rhein478-43-3  PDF
    CFN98791Resveratrol501-36-0  PDF
    CFN999952,3,5,4'-Tetrahydroxyl diphenylethylene-2-O-glucoside82373-94-2  PDF
    CFN98995Pinostilbenoside58762-96-2  PDF
    CFN99624Gallic acid149-91-7  PDF
    CFN99646Catechin154-23-4  PDF
    CFN99569(-)-Epigallocatechin gallate989-51-5  PDF
    CFN98781Epicatechin490-46-0  PDF
    CFN97549(-)-Epigallocatechin(EGC)970-74-1  PDF
    CFN99571(-)-Gallocatechin gallate4233-96-9  PDF
    CFN99572Emodin-8-beta-D-glucoside23313-21-5  PDF
    CFN98841Tricin520-32-1  PDF
    CFN98713Daucosterol474-58-8  PDF
    CFN977615,7-Dihydroxychromone31721-94-5  PDF
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