PROCESS FOR SELECTIVELY ISOLATING IGY ANTIBODIES FROM EGG YOLK OF AN ANSERIFORM BIRD AND IGY ANTIBODIES OBTAINED THEREBY

摘要

The present invention mainly relates to a process for isolation and purification of yolk antibodies from egg yolk of an anseriform bird by an adsorption chromatographic procedure using a water insoluble non-charged absorbent to accomplish a desired separation of yolk antibodies, and by a salting-out procedure that differentially precipitates the IgY antibodies. The present invention also relates to the yolk antibodies produced thereby and various uses of such yolk antibodies.