Process for selectively isolating IGY antibodies from egg yolk of an anseriform bird by adsorption chromatography and salting each method separately or combination of

摘要

A process for selectively isolating IgY antibodies from egg yolk of an anseriform bird, characterised by: a) absorbing yolk antibodies in a water-miscible fraction obtained from the egg yolk of an anseriform bird with a water insoluble non-charged absorbent selected from the group consisting of silicate, silicon compounds, carbonate, sulphate, phosphate, carbon, cellulose and synthetic fiber, ceramics, and metal oxide, and wherein the water insoluble no-charged absorbent is at an amount effective for separating the yolk antibodies from the water-miscible fraction; and b) flowing the water insoluble non-charge absorbent with a buffer to obtain an aqueous fraction containing the yolk antibodies. Also covered are IgY antibodies obtained by said process.