A - Human Necessities – 23 – L
Patent
A - Human Necessities
23
L
A23L 1/056 (2006.01) A23L 1/0562 (2006.01) A23L 3/3571 (2006.01)
Patent
CA 2560268
One aspect of the disclosure herein contemplates a composite film comprising lysozyme incorporated within a chitosan polymer matrix. In another aspect, there is disclosed a film that includes chitosan, and about 10 to about 200 weight percent lysozyme, based on the weight of the chitosan. Also disclosed is a method for making a film that includes dissolving or dispersing chitosan and lysozyme in an aqueous medium resulting in a film-forming solution or dispersion; applying the film-forming solution or dispersion to a substrate surface; and converting the film-forming solution or dispersion into a film. In a particularly useful application, the film is an antimicrobial protectant for a food article.
Selon un aspect, l'invention concerne un film composite à lysozyme incorporé dans une matrice de polymère chitosane. Selon un autre aspect, l'invention concerne un film à chitosane, avec une proportion de lysozyme comprise entre environ 10 et environ 200, en pourcentage de poids, par rapport au poids de chitosane. L'invention concerne en outre un procédé d'élaboration de film consistant à dissoudre ou à disperser le chitosane et le lysozyme dans un milieu aqueux, pour donner une solution ou une dispersion filmogène, à appliquer la solution/dispersion sur une surface de substrat, et à convertir la solution/dispersion en film. Selon une application particulièrement utile, le film apporte une protection antimicrobienne pour un produit alimentaire.
Daeschel Mark A.
Park Su-Il
Zhao Yanyun
Oyen Wiggs Green & Mutala Llp
State Of Oregon Acting By And Through The State Board Of Higher
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