Prebiotic potential of ‘juice grape’ varieties and some hybrids

Abstract

This study presents prebiotic potential of 9 grape varieties [4 marketed ‘juice’ grapes (G1, G2, G3, and G9) and 5 hybrids (G4, G5, G8, G10 and G12)] using 4 individual probiotics and a consortium. Marketed fructooligosaccharide (FOS) was used as a standard prebiotic. G10 showed higher growth response to <i>Lactobacillus acidophilus </i>and<i> L. delbrueckii</i> and reduced <i>Escherichia coli</i> counts with zone of inhibition against <i>E. coli</i>. Inhibititory activity of α−amylase as IC₅₀was lowest for G1 and G10. All grape varieties and hybrids showed prebiotic activity (21.2-72.5% of FOS) with G1 and G10 being promising types.