| 摘要 |
This invention relates to a method for selectively isolating IgY(DeltaFc) avian antibodies from IgY avian antibodies. For example, the method includes: (a) providing an aqueous fraction from yolk of an egg of an anseriform bird; (b) precipitation IgY antibodies using a first precipitant salt; and (c) precipitating the IgY(DeltaFc) antibodies from a supernatant using a second precipitant salt to provide an isolated preparation enriched for IgY(DeltaFc) antibodies.
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