Antimicrobial Activity of Vitis vinifera L. Pomace Extract

Abstract

Grape pomace is a winery industry residue of skins, seeds and stems of grapes used in agriculture for animal feed and production of food with biological activity. The aim of this study was to evaluate antimicrobial activity of Vitis vinifera L. pomace extract on growth of microscopic fungi and bacteria. The four strains of bacteria (two Gram-positive bacteria Staphylococcus aureus CCM 2461, Bacillus cereus CCM 2010; two Gram-negative bacteria Escherichia coli CCM 3988, Pseudomonas aeruginosa CCM 1959) and four yeasts strains (Candida albicans CCM 8186, Candida glabrata CCM 8270, Candida krusei CCM 8271 and Candida tropicalis CCM 8223) were studies. For detection of antimicrobial activity, the grape pomace extracts of white variety Pálava and red variety Dornfelder were used. Pálava pomace extracts were less efficient against the microorganisms tested and Dornfelder extracts were more active against Gram-positive bacteria and yeasts.

Keywords

• antimicrobial activity
• gram negative bacteria
• gram positive bacteria
• yeasts
• vitis vinifera l.