“…Amongst these, convincing scientific evidence for their suitability for use as prebiotics exist for inulin/oligofructose and for galactooligosaccharides (GOS) (Gibson et al, 2004). There is a multiplicity of beneficial health effects attributed to the ingestion of GOS (Sako, Matsumoto, & Tanaka, 1999;Moro et al 2002;Playne, Bennett, & 2003;van den Broek, Ton, Verdoes, van Laere, Voragen, & Beldman, 1999) or by reverse reaction of a-galactosidases on lactose hydrolyzates (Hashimoto, Katayama, Goto, Okinaga, & Kitahata, 1995). The main products reported, were a(1-6) linked tri-and tetra-saccharides, in the case of donor substrates, and similarly linked disaccharides on the reverse reaction on lactose hydrolyzates.…”