THE EVALUATION OF ANTIOXIDANT CAPACITY OF PROPOLIS ORIGINATING FROM WESTERN ROMANIA
ADRIANA DĂRĂBAN 1, NELI K. OLAH 1,2, RAMONA F. BURTESCU 2, FLAVIA PRIPON FURTUNĂ 2, DANIELA HANGANU 3, IOAN SIMON 3, MARIUS BOJIŢĂ 3, CODRUŢA SIMONA HEGHEŞ 3*, LORENA FILIP 3
1."Vasile Goldis" Western University of Arad, Faculty of Pharmacy, 86 Rebreanu Street, Arad, Romania
2.SC PlantExtrakt SRL, 407059 Rădaia. Cluj, Romania
3.Iuliu Haţieganu University of Medicine and Pharmacy, Faculty of Pharmacy, Cluj-Napoca, Romania
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The propolis, a resinous material produced by bees, was used from ancient times as a general panacea. The main active compounds known in propolis are the phenolic acids and flavonoids from the main class of polyphenols. This paper presents the flavonoid and phenolic acids contents evaluation by spectral (UV-Vis) methods of some propolis samples originating from two region located in the West (4 samples) and Northwest (3 samples) of Romania. The total flavonoid content expressed in chrysin ranges from 2.06 to 6.88 % respectively the total phenolic acids content expressed in caffeic acid from 0.30 to 0.72 %. It was evaluated the antioxidant capacity by DPPH, TEAC, FRAP, CUPRAC and silver nanoparticle (SNPAC) methods. All studied samples have shown important antioxidant capacity, an effect that could not be directly correlated with the polyphenols content, but exist a similar correlation trend at the studied samples.