Influence of galactooligosaccharides on the growth and antimicrobial activity of lactobacillus fermentum i-5

Abstract

Oligosaccharides may alter the antimicrobial activity of lactobacilli strains cultivated in whey media. The utilization of galactooligosaccharides in whey media by Lactobacillus fermentum I-5 was performed. The quantity of the used galactooligosaccharides had a pronounced effect on the growth rate. It was found that concentrations of 15% galactooligosaccharides and 2% of whey proteins contribute to higher growth rate. The obtained results revealed again that the higher percent of oligosaccharides stimulate higher antimicrobial activity. © 2010 Taylor and Francis Group, LLC.