摘要：In this study, in vitro effects of six commercial prebiotics on growth and acidifying activity of two strains of Lactobacillus acidophilus and two strains of Bifidobacterium spp. were investigated. Fructo-oligosaccharide, inulin, galacto-oligosaccharide, soybean oligosaccharide, xylo-oligosaccharide and lactulose were used as prebiotics. The prebiotics were tested at three different concentrations. Growth and acidifying activity of the probiotic bacteria were variable depending on the type and concentration of the prebiotics. In general, as the concentration of the prebiotics increases, the growth and acidifying activity performance of the probiotic strains increases. The difference in the strains of L. acidophilus was not significant in terms of both growth performance and acidifying activity. However, the differencein the species of Bifidobacterium was found to be significant ( P<0.05). The results of this study indicated that an appropriate prebiotic substance should be selected for each probiotic bacterial strain for its good growth and acidifying performance.
