Phosphatidylserine enriched milk fractons for the formulation of functional foods

摘要

Provided is a process for the preparation of a phosphatidylserine (PS) source derived from bovine milk, containing at least 0.2% phosphatidylserine calculated on the weight of total lipids, by performing the steps of: centrifuging cream for butter oil production to a cream containing about 80 % of fat; breaking the resulting emulsion by high shearing to obtain a butter milk together with a butter oil; collecting the butter milk; separating fat from the butter milk to give butter milk containing about 70-80% phospholipids in the total lipids in the butter milk; treating the fat-separated butter milk by ultrafiltration to provide a concentrate; and spray-drying the resulting concentrate. Further provided are products produced by the process.