Method for the production of gelatin of marine origin and...

Details Method for the production of gelatin of marine origin and... Method for the production of gelatin of marine origin and...

C - Chemistry, Metallurgy

09

H

C09H 3/00 (2006.01) A23J 1/04 (2006.01) A23J 3/06 (2006.01) A23L 1/0562 (2006.01) C08L 89/04 (2006.01)

Patent

CA 2385925

The invention relates to the production of gelatins from the skins of marine animals and residues of connective tissues from fasciae and muscles by means of several production stages. After washing the skins and/or connective tissue several times by strongly shaking them in a cold sodium chloride solution, they are treated with a diluted alkali and then neutralized and washed with water. Treatment with organic acid is of fundamental importance. The use of acetic or lactic acid may be of interest to obtain high rheological properties and yields. After washing, the gelatin is extracted in water by means of heat treatment. Subsequent drying is performed by means of heat, spraying or lyophilization. Several compounds are added to this proteic material to form the final product or gelatin.

L'invention concerne un procédé de fabrication de gélatine à partir de peaux d'animaux marins et de restes de tissu connectif provenant des fascias et des muscles, comprenant diverses étapes d'élaboration. Le procédé consiste d'abord à soumettre les peaux et/ou le tissu connectif à divers lavages, à les agiter fortement dans une solution de chlorure de sodium à froid, puis à les traiter avec un alcali dilué, à les neutraliser et à les laver avec de l'eau. Le traitement à l'acide organique est fondamental, l'application d'acide acétique ou lactique permettant d'obtenir des propriétés rhéologiques et un rendement élevés. Suite à un lavage, on procède à l'extraction de la gélatine dans de l'eau par traitement thermique. Le séchage ultérieur s'effectue à la chaleur, par atomisation ou par lyophylisation. On incorpore ensuite à cette matière protéique divers composés afin d'obtenir le produit final ou gélatine.

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