Insigths in the phenolic composition of portuguese própolis
Artigo de Conferência
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resumo
The chemical composition of propolis is highly variable, depending strongly on thc
plant sources available to the bees at different locations, the geographic and climatic
characteristics of these locations, I n the temperate zone, propol is originates mostly Ii'om
bud exudates of poplar trees (Populus spp .. section Aigciros), For this reason, European
propolis contains the typical 'poplar bud' phenolics: flavonoid aglicones (flavones and
flavanones), phenolic acids and their esters.
