Method for preparing peptide products, and resulting products

Details Method for preparing peptide products, and resulting products Method for preparing peptide products, and resulting products

C - Chemistry, Metallurgy

12

P

C12P 21/06 (2006.01) C07K 2/00 (2006.01) C07K 14/47 (2006.01)

Patent

CA 2179738

A method in which an esterification reaction is carried out on at least one esterifiable grouping of a protein or peptide contained in an animal or vegetable substrate, and said protein or peptide is exposed to a proteolytic enzyme. The esterification reaction is preferably carried out on at least one carboxylic grouping of the protein or peptide, advantageously by means of an aliphatic alcohol having 1-5 carbon atoms, or an activated derivative thereof. The method may be used to prepare novel peptide populations for use as ingredients or additives in food compositions, pharmaceuticals or cosmetics.

Le procédé selon l'invention consiste à réaliser une réaction d'estérification sur au moins un groupement estérifiable d'une protéine ou d'un peptide contenu dans un substrat d'origine animale ou végétale, puis à soumettre ladite protéine ou ledit peptide à l'action d'une enzyme protéolydque. La réaction d'estérification est de préférence réalisée sur au moins un groupement carboxylique de la protéine ou du peptide; elle est avantageusement conduite par un alcool aliphatique possédant entre 1 et 5 atomes de carbone, ou un de ses dérivés activés. Ce procédé permet d'obtenir de nouvelles populations peptidiques susceptibles d'être utilisées à titre d'ingrédients ou d'additifs dans des préparations alimentaires, pharmaceutiques ou cosmétologiques.

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