Condensed tannins in extracts from European medicinal plants and herbal products

Ropiak, H. M., Ramsay, A. and Mueller-Harvey, I. (2016) Condensed tannins in extracts from European medicinal plants and herbal products. Journal of Pharmaceutical and Biomedical Analysis, 121. pp. 225-231. ISSN 0731-7085 doi: 10.1016/j.jpba.2015.12.034

Abstract/Summary

Medicinal plant materials are not usually analysed for condensed tannins (CT). Thirty commercially available European medicinal plants and herbal products were screened for CT and fourteen CT samples were analysed in detail. This is also the first comprehensive CT analysis of pine buds, walnut leaves, heather flowers and great water dock roots. Acetone/water extracts contained between 3.2 and 25.9 g CT/100 g of extract, had CT with mean degrees of polymerisation of 2.9 to 13.3, procyanidin/prodelphinidin ratios of 1.6/98.4 to 100/0 and cis/trans flavan-3-ol ratios of 17.7/82.3 to 97.3/2.7. The majority of samples contained procyanidins, four contained A-type linkages (blackthorn flowers, heather flowers, bilberry leaves and cowberry leaves) and one sample also had galloylated procyanidins (great water dock roots).

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/49645
Identification Number/DOI	10.1016/j.jpba.2015.12.034
Refereed	Yes
Divisions	Life Sciences > School of Agriculture, Policy and Development > Department of Animal Sciences > Animal, Dairy and Food Chain Sciences (ADFCS)- DO NOT USE
Publisher	Elsevier
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