Insigths in the phenolic composition of portuguese própolis
Conference Paper
Overview
Overview
abstract
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.