Method for removing antigenicity from peptide
AssigneeNippi, Incorporated
InventorsKazumasa Ohtsuka, Michihiko Takahashi, Masako Araki, Zen Mitsui
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Abstract
A method for removing antigenicity from peptide derived from a collagen-containing material or gelatin by hydrolyzing it with aid of an inorganic acid is disclosed. The method is carried out by passing the peptide through a mixture of a cation-exchange resin and an anion-exchange resin. The thus treated peptide may be further passed through a membrane for ultrafiltration to remove pyrogenous substances completely. The peptide obtained is useful as an additive, diluent or carrier for cosmetic articles or drugs.
Claims5
A method for removing antigenicity from peptide derived from collagen-containing materials or gelatin by hydrolyzing the material or gelatin with aid of an inorganic acid, which comprises passing the peptide through a mixture of a cation-exchange resin and anion-exchange resin.
Dependencies are inferred from the claim text.