Naslov
The Components Responsible for the Antimicrobial Activity of Propolis from Continental and Mediterranean Regions in Croatia

Autori
Tlak Gajger, Ivana ; Pavlović, Iva ; Bojić, Mirza ; Kosalec, Ivan ; Srečec, Siniša ; Vlainić, Toni ; Vlainić, Josipa

Izvornik
Czech journal of food sciences (1212-1800) 35 (2017), 5; 376-385

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
propolis ; antimicrobial effects ; phenols ; flavonoids ; DPPH ; FRAP ; HPLC analyses ; correlations

Sažetak
Propolis is a popular subject of research worldwide due to its therapeutic potential. The antimicrobial activity of propolis appears to be promising but depends on many variables related to its origin such as the content of phenolics and flavonoids. To address this issue with Croatian propolis, which has two major origins Mediterranean and continental), we exposed bacteria (Escherichia coli and Staphylococcus aureus) and yeasts (Candida albicans and Aspergillus niger) to different propolis concentrations (two-fold microdilution method with TCC/formazan endpoint). Total phenolic and flavonoid content and chromatographic profile along with antioxidant activity were assessed. The majority of the 24 propolis samples tested exhibited potent antimicrobial activity against S. aureus bacteria and the yeast C. albicans. Most propolis samples also exhibited robust antioxidative capacity which correlated polyphenol and flavonoid content. To the best of our knowledge this is the first study in which the antimicrobial activity of Croatian propolis is correlated with its constituents.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Biologija, Farmacija

POVEZANOST RADA