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Chemical composition of propolis from Canada, its antiradical activity and plant origin.

Identifieur interne : 004086 ( Main/Exploration ); précédent : 004085; suivant : 004087

Chemical composition of propolis from Canada, its antiradical activity and plant origin.

Auteurs : Roumen Christov [Canada] ; Boryana Trusheva ; Milena Popova ; Vassya Bankova ; Michel Bertrand

Source :

RBID : pubmed:16076637

Descripteurs français

English descriptors

Abstract

The chemical composition of propolis from two regions in Canada was studied: Boreal forest and the Pacific coastal forest that lie outside the area of distribution of Aigeiros poplars, the usual propolis source plants. In the sample from Victoria, p-hydroxyacetophenone, benzyl hydroxybenzoate and cinnamic acid were the major components, accompanied by significant amounts of dihydrochalcones, which allowed the identification of its plant source: Populus trichocarpa of section Tacamahaca. Three dihydrochalcones were new for propolis. The sample from Richmond was characterized by large amounts of p-coumaric and cinnamic acid, typical for poplars of section Leuce, subsection Trepidae, its plant source was identified as P. tremuloides. Both samples showed a good radical scavenging activity against DPPH. Obviously, the Northern type propolis is a promising potential source of biologically active substances and deserves further investigation.

DOI: 10.1080/14786410512331328159
PubMed: 16076637


Affiliations:


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Le document en format XML

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