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Purification of Sirups from Hydroiyzed Lactose in Sweet Whey Permeate

Eastern Regional Research Center¹, Philadelphia, PA 19118

ABSTRACT

Sirups were prepared from whey permeates containing 90% hydroiyzed lactose by use of bentonite to remove protein and by cation and anion exchange resins to remove salts and nonprotein nitrogen, and then they were concentrated to 60 to 66% total solids. The resulting clear colorless sirups contained 98.7 to 98.4% carbohydrate, 1.18 to 1.40% protein equivalent (nitrogen X 6.38), and .13 to .23% chloride ash, dry weight. The sweetness and stability of these sirups were equal or more than sirups made by hydrolysis of purified lactose.

¹ Federal Research, Science and Education Administration, U.S. Department of Agriculture.