VALIDATED METHOD FOR ESTIMATION OF TOTAL FLAVONOIDS IN ROMANIAN PROPOLIS

LIVIU AL. MARGHITAS, DANIEL DEZMIREAN, LAURA LASLO, ADELA MOISE, OLIMPIA POPESCU, O. MAGHEAR

Abstract


In this article there are two methods presented for determination of 2 groups of flavonoids: flavone/flavonols (FF) - AlCl3, and flavanones/dihydroflavonols (FD) - 2,4-dinitrophenylhidrazine. Together they sum up the total flavonoids (FvT) in propolis. Romanian propolis taken into analysis had an amount of 4% flavone/flavonols, 6% flavanones/dihydroflavonols and about 10% total flavonoids typical for propolis derived from Populus sp. Statistical correlation between data (FF, FD, FvT) obtained by sonication and by maceration present no significance difference between results.

Keywords


propolis; flavonoids

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DOI: http://dx.doi.org/10.15835/buasvmcn-asb:64:1-2:2220




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