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Quantitative determination of the bacteriostatic activity against Staphylococcus aureus of certain flavonoids, phenolic acids and esters occurring in propolis

100%

Maciejewicz W., Meresta T.

Bulletin of the Veterinary Institute in Puławy

1999

tom 43

nr 1

Bacteriostatic activity against Staphylococcus aureus of eleven single flavonoids, pinostrobin chalcone, cinnamic acid and four of its derivatives, hydrocinnamic acid, benzoic acid and six of its derivatives and vanillin occurring in propolis has been determined quantitatively by the method of serial dilutions. Moreover, the determination of bacteriostatic activity has been performed using ethanolic extract of propolis as well as that of three fractions obtained separately from propolis and identified earlier by GC-MS method. These were the following fractions: 1) the water fraction, 2) the fraction volatile with water vapour, 3) the flavonoids fraction. Bacteriostatic activities were also established for four flavonoids and eight organic acids using BIO method and the results of the used methods are compared and discussed. The highest bacteriostatic activity against Staphylococcus aureus displayed the following flavonoids: kaempferid, galangin, apigenin, quercetin, rhamnetin, pinocembrin and kaempherol.

Ograniczanie wyników

1 Bulletin of the Veterinary Institute in Puławy

1 Maciejewicz W.

1 Meresta T.

1 1999

Wyniki wyszukiwania

Quantitative determination of the bacteriostatic activity against Staphylococcus aureus of certain flavonoids, phenolic acids and esters occurring in propolis