Peptide mixtures derived from collagenous material or gelatin
AssigneeNippi, Incorporated
InventorsKazumasa Ohtsuka, Zen Mitsui, Hajime Wada
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Abstract
Peptide mixtures having relatively narrow average molecular weights and characteristic amino acid compositions and a process for preparing the same from a collagenous material or gelatin are disclosed. The peptide mixtures have unique properties and are useful as a water- or moisture-retaining agent for cosmetic articles or foods, a foaming agent for foods, a bitterness-blocking agent for medicines or a nutritional component for soft drinks.
Claims12
A peptide mixture prepared by hydrolyzing a collagen-containing material or gelatin which has a number average molecular weight of from 300-500 and contains 40-60 hydroxylysine plus lysine residues, 55-70 arginine residues, 360-390 glycine residues 50-70 proline residues and 60-80 hydroxyproline residues per 1,000 amino acid residues;
- pouring the hydrolysate into a column filled with a cation-exchange resin;
- eluting the peptide absorbed on the resin with an alkaline solution;
- and collecting and condensing the eluate.
Dependencies are inferred from the claim text.