Antimicrobial Properties Extracts From Fruits and Leafs Of Blueberry, Cranberry and Aronia

Abstract

The aim of this paper is to promote antimicrobial activity of berry fruits to rationalize the use of antibiotics considering unwanted consequences and increase of bacteria resistance towards them. In this research we have examined the antimicrobial effects of fruit and leaf extracts of blueberry, cranberry and aronia. During the research we used the Kirby Bauer disc diffusion method. The most prominent antimicrobial effects were achieved by the blueberry fruit extract and cranberry leaf extracts. The aronia extracts have shown the weakest antimicrobial activity. It has been proved that berries posses more antimicrobial effectiveness towards Gramm positive bacteria than the Gramm negative ones.

Obzirom na nepoželjne posljedice primjene sintetskih antibiotika, kao i porast bakterijske rezistencije prema njima svrha ovog rada je promocija antimikrobne učinkovitosti bobičastih vrsta sa ciljem racionalizacije upotrebe antibiotika. U ovom istraživanju smo ispitivali antimikrobni učinak ekstrakata iz plodova i listova borovnice, brusnice i aronije. Korišten je disk difuzijski metod po Kirby Baueru. Najizraženiji antimikrobni učinak od ispitivanih plodova posjeduje plod borovnice, a od listova list brusnice. Ekstrakti iz aronije iskazuju slabu antimikrobnu aktivnost. Bobičaste vrste su antimikrobno djelotvornije prema Gramm pozitivnim bakterijama u odnosu na Gramm negativne.