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Peptide mixtures derived from collagenous material or gelatin

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TLDR
In this article, 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 and a bitterness-blocking agent for medicines or a nutritional component for soft drinks.
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.

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Art of manufacturing gelatin

TL;DR: The rabbit skins, especially in the form known as coney shred is well known as a potential stock from which to manufacture gelatin, and in the past methods have been proposed for utilizing it in the... as discussed by the authors.