申请人:Meiji Seika Kaisha Ltd.
公开号:EP2088157A1
公开(公告)日:2009-08-12
An object of the present invention is to elucidate a collagen peptide composed of oligopeptides having ability to enter the blood higher than that of conventional collagen peptides and thus to provide a food or beverage mixed with the collagen peptide. The present invention provides a collagen peptide composition obtainable by digesting a collagen or gelatin with protease, which comprises 70% to 100% by weight of peptides with a molecular weight 500 or more to 3000 or less, less than 10% by weight of peptides with a molecular weight of less than 500, and less than 20% by weight of peptides with a molecular weight of more than 3000, based on the total weight of the composition, wherein the ratio of N-terminal glycine residues to total of the N-terminal amino acid residues of the peptides in the composition is 33 mol% or more to 65 mol% or less.
本发明的目的是阐明一种由低聚肽组成的胶原蛋白肽,其进入血液的能力高于传统的胶原蛋白肽,从而提供一种混合了该胶原蛋白肽的食品或饮料。本发明提供了一种可通过用蛋白酶消化胶原蛋白或明胶而获得的胶原蛋白肽组合物,按重量计,该组合物包括 70% 至 100% 的分子量为 500 或以上至 3000 或以下的肽,按重量计,分子量小于 500 的肽小于 10%,按重量计,分子量小于 3000 的肽小于 20%、以组合物的总重量为基准,分子量大于 3000 的肽的重量比小于 20%,其中 N 端甘氨酸残基与组合物中肽的 N 端氨基酸残基总数的比例为 33 摩尔%或以上至 65 摩尔%或以下。