Abstract: It is provided a process for producing lactosucrose from a source of lactose such as whey permeate and a source of sucrose as well as a source of both lactose/sucrose such as chocolate milk to enzymatically generating in situ lactosucrose, and fructosylate phenolic compounds contained therein, the process comprising contacting the dairy starting material (containing sucrose) with a levansucrase (LS), which can be immobilized on a solid support, selected from Bacillus amyloliquefaciens (ATCC 23350), Gluconobacter oxydans (strain 621H) (LS1), Vibrio natriegens NBRC 15636 (LS2), Novosphingobium aromaticivorans (LS3), and Burkholderia graminis C4D1M (LS4), or a combination thereof.

Abstract: There is provided a method of treating obesity and/or hypertension in a subject in need thereof by administering a therapeutically effective amount of a low molecular weight levan or a pharmaceutical composition comprising the low molecular weight levan and a pharmaceutically acceptable excipient.