PREPARATION METHOD OF GALACTOOLIGOSACCHARIDE CONCENTRATES (VERSIONS) Russian patent published in 2010 - IPC A23C21/00 A23L1/30 

FIELD: food industry.

SUBSTANCE: invention relates to technology of the functional food products and can be used to produce galactooligosaccharide concentrate on the basis of lactose solution and lactoserum permeate. Production method of galactooligosaccharide concentrate out of lactose solution involves preparing water with pH 6.5 ± 0.5 by means of electric activation, dissolving lactose in the water, adding yeast or bacterial β-galactosidase into the lactose solution, fermenting, condensing, inactivating the ferment and cooling the obtained concentrate. The dry solids weight ratio in the mother solution is 22 ± 2%, fermentation temperature is 41 ± 2.5°C and the fermentation duration is 2.5 ± 0.5 hours. Alternatively, galactooligosaccharide concentrate is obtained out of lactoserum permeate. The fermentation temperature is 50 ± 2°C and the duration is 1.5 ± 0.5 hours. Invention enables to produce food products with high galactooligosaccharide content.

EFFECT: reduced cost of the product as well as environmentally safe production.

2 cl, 4 ex