| abstract |
A secretory component-containing composition which is obtainable by contacting a milk or a whey with a cation exchange resin to allow the resin to adsorb a secretory component contained in the milk or the whey and then eluting the secretory component and which has the following properties:n (a) contains a seretory component with the purity of at least 20% by weight, (b) contains, besides the secretory component, at least an immunoglobulin and/or a serum albumin, and (c) has anti-infectious effects. |