Expression of ocean fish antifreeze peptide in a food grade...

C - Chemistry – Metallurgy – 12 – N

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C12N 5/10 (2006.01) A01H 5/00 (2006.01) A21D 2/26 (2006.01) A21D 15/02 (2006.01) A23G 9/00 (2006.01) A23L 1/03 (2006.01) A23L 3/3526 (2006.01) A23L 3/3571 (2006.01) A23L 3/36 (2006.01) C07K 14/46 (2006.01) C12N 1/19 (2006.01) C12N 15/09 (2006.01) C12P 21/02 (2006.01)

Patent

CA 2226101

Use of a polypeptide or protein with amino acid sequence corresponding substantially to AFP-type III HPLC 12 as additive in a product for improvement of said product, said improvement residing in improved properties of modification of ice crystal growth processes influencing size and shape characteristics of ice in particular in regrowth thereby e.g. minimising potential freezing damage e.g. by preventing or inhibiting ice recrystallisation of the product upon freezing, said use occurring in a manner known per se for antifreeze peptides to obtain higher specific modification activity in particular antifreeze activity than obtainable with the same amount of Winter Flounder AFP.

Utilisation d'un polypeptide ou d'une protéine qui comporte une séquence d'acides aminés correspondant sensiblement au type AFP III HPLC 12 comme additif dans un produit en vue d'améliorer ledit produit. Cette amélioration consiste en une modification des processus de croissance des cristaux de glace influençant les caractéristiques de taille et de forme de la glace; elle permet notamment, en cas de reformation des cristaux, de minimaliser les éventuelles dégradations dues à la congélation, par exemple en empêchant la recristallisation de la glace dans le produit lors de la congélation. Cette technique, comparable à la technique connue en soi pour les peptides antigel, permet d'obtenir une activité de modification spécifique, en particulier une activité antigel, plus élevée que celle qui peut être obtenue avec la même quantité d'AFP de plie rouge.

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