Prebiotic evaluation of a novel galactooligosaccharide mixture produced by the enzymatic activity of Bifidobacterium bifidum NCIMB 41171 , in healthy humans : a randomized , double-blind , crossover , placebo-controlled intervention study 1 – 3

Background: Galactooligosaccharides are selectively fermented by the beneficial member of the colonic microflora contributing to the