Patent ID: 8173783
Filing Date: 2012-05-08
Classification: C07K

Abstract:
1. A process for selectively isolating IgY antibodies from egg yolk of an anseriform bird, comprising: (a) adsorbing IgY antibodies in a water-miscible fraction obtained from the egg yolk of an anseriform bird with a porous water insoluble non-charged adsorbent selected from the group consisting of silicate, silicon compounds, carbonate, sulfate, phosphate, carbon, cellulose, synthetic fiber, ceramics, and metal oxide, and wherein the porous water insoluble non-charged adsorbent is at an amount effective for separating the IgY antibodies from the water-miscible fraction; and (b) flowing the porous water insoluble non-charged adsorbent with a buffer to obtain an aqueous fraction containing the IgY antibodies, wherein the IgY antibodies comprise antibodies with Fc regions and antibodies that lack Fc regions.