标题：Antifungal Activity of Propolis Samples Collected from Different Geographical Regions of Turkey against Two Food-Related Molds, Aspergillus versicolor and Penicillium aurantiogriseum
摘要：The aim of this study was to investigate antifungal activities of 10 propolis samples collected from various geographical regions of Turkey against 2 important food-related mycotoxin producer molds, Aspergillus versicolor and Penicillium aurantiogriseum. Chemical compositions of ethyl alcohol extracts of the propolis (EEP) samples were determined by gas chromatography coupled to mass spectrometry. Antifungal activities of EEP samples were tested at 3 different concentrations of 1%, 5% and 10% (v/v) by determination percentage of mycelial growth inhibition of the mold strains on Potato Dextrose Agar. Main organic components of EEP samples were flavonoids, aromatic alcohols, aromatic acid esters, aliphatic acid esters, aromatic acids, alcohols and aromatic hydrocarbons. All EEP samples at 10% concentration showed 100% inhibition on mycelial growth of both mold strains. Antifungal activities of EEP samples against the mold strains were variable at 1% and 5% concentrations. The results indicated that a higher EEP concentration was necessary for the inhibitory effect on mycelial growth of P. auantiogriseum comparing with A. versicolor. Percentage of flavonoids in the effective propolis samples was considerably higher than the others. These results indicated that propolis samples had a marked antifungal action against both mold strains depending on EEP concentration and chemical composition.
关键词：Propolis; antifungal activity; food related molds; Aspergillus versicolor; Penicillium aurantiogriseum
