A process is provided for making (-)-epigallocatechin gallate (EGCG) by subjecting a green tea extract to chromatography on a macroporous polar resin, eluting EGCG from the resin with a polar elution solvent, optionally concentrating the eluate, optionally regenerating the resin by desorbing the remaining catechins, and optionally concentrating the desorbed catechins.

 
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> Use of a polypeptide for treatment of pruritis in animals

> Use of colostrinin, constituent peptides thereof, and analogs thereof, as oxidative stress regulators
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