Correlation between Phenolic Composition and Biological Properties of Propolis and Heavy Metal Contents
Öz
The presence of heavy metals in propolis is
associated with the environmental pollution of anthropic origin around the apiaries
via various sources such as air, water, plants and soil. Although the presence
of these compounds could affect the biological properties of the propolis, the
correlation between them has not been previously studied. Then, the aim of this
work was to stablish the correlations between the levels of some heavy metals
such as lead, chromium, nickel, copper or zinc and phenolic composition and
biological properties such as antioxidant or antibacterial activities. For this
work, 44 propolis samples of different geographic locations were analyzed:
Chile (Biobio region n=10) and Spain (Galicia n=12 and Castilla y León n=22).
The mineral composition analysis was performed using ICP-MS (Inductively
Coupled Plasma Mass Spectrometry). Antioxidant activity was measured using
ABTS, DPPH and inhibiting activity of the linoleic acid/-caroten radical
assays. Phenolic acids and their derivatives were determined by HPLC and
biocide properties using the Five-Plate test. Pearson correlations were
calculated with SPSS statistic package.
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