Prebiotic Concentrate Based on Dairy Molasses

Dairy molasses is the main by-product of high-quality lactose production. It is rich in lactose, minerals, and non-protein nitrogenous substances. Advanced dairy molasses processing includes the production of concentrate powders fortified with lactulose, e.g., lactose prebiotics. Dairy molasses can be a raw material for prebiotic concentrates in foods and feeds. The article introduces a new technology that relies on the alkaline isomerization of lactose into lactulose. It provides kinetic patterns of lactose-to-lactulose isomerization in refined molasses. The carbohydrate composition of isomerized dairy molasses was studied by the method of high-performance liquid chromatography and resulted in a block diagram for the production of prebiotic concentrate from refined dairy molasses. The research confirmed the expediency of dairy molasses as a source of prebiotic concentrate powders to be used in functional foods and feed products.