The bone more decreasing factor and foodstuffs and beverages contain the same factor

摘要

An osteoblast growth promoting and bone reinforcing factor comprising either a precipitate prepared by adjusting the pH of whey or an aqueous solution of whey proteins to 2 to 6 and the concentration of ethanol to 10 % or above, or a water-soluble component prepared by dissolving the precipitate in water and having a molecular weight of 5,000-28,000 Da. The above factor having a molecular weight of 5,000-28,000 Da and an isoelectric point of 4 to 9 and obtained from a supernatant of heated whey or aqueous solution of whey proteins, a precipitate formed by treating the same with sodium chloride or a permeate formed by the ultrafiltration thereof. Food, medicine and feed containing the above factor and useful for preventing and treating osteoarthropathy.