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Evid Based Complement Alternat Med. 2006 Jun;3(2):249-54. Epub 2006 May 3.

Bioactive constituents of brazilian red propolis.

Abstract

In a new propolis type, red Brazilian propolis, 14 compounds were identified (six of them new for propolis), among them simple phenolics, triterepenoids, isoflavonoids, prenylated benzophenones and a naphthoquinone epoxide (isolated for the first time from a natural source). Three of the major components demonstrated significant antimicrobial activity, and two (obtained as inseparable mixture) possessed radical scavenging activity against 1,1-diphenyl-2-picrylhydrazyl (DPPH).

PMID:
16786055
[PubMed]
PMCID:
PMC1475931
Free PMC Article

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