Purification of galactooligosaccharides and their fermentability by bacteria

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Peroutková J, K. G. B. I. P. M. P. J. P. A. (2016). Purification of galactooligosaccharides and their fermentability by bacteria. Academy of Agriculture Journal, 1(02). https://doi.org/10.15520/aaj.v1i2.10
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Abstract

A commercial preparation, Oligomate 55NP, was used as a source of galactooligosaccharides for fermentation experiments. The reaction residues of glucose and lactose were removed from it by a fermentation method. This pre-purified preparation was fermented by selected strains of lactobacilli, bifidobacteria and entrerococci for 24 hours. The total amount of galactooligosaccharides, optical density and pH in the media were determined at the beginning and at the end of fermentation.  It was possible to conclude from the results achieved that galactooligosaccharides were fermented by all used strains of microorganisms, but with varying intensity. The degree of their utilization correlated well with the increase of microbial counts characterized by the elevated optical density of the substrate at the end of fermentation.

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