Preservation of liquid foods

Abstract

Anti-spoilage inserts and methods are provided for inhibiting the spoilage of liquid foods.

1 . An anti-spoilage insert, wherein the anti-spoilage insert inhibits spoilage of a substantially liquid food, the anti-spoilage insert comprising:
 a substrate; and   silver, wherein silver is deposited on the substrate.   
     
     
         2 . The anti-spoilage insert of  claim 1 , wherein
 the weight of silver is at least 0.05% by weight of the substrate; and   the substrate weight of the substrate is at least 1 mg per mL of the volume of the substantially liquid food.   
     
     
         3 . The anti-spoilage insert of  claim 1 , wherein the substrate comprises fiberglass, plastic, paper, wood, wood-pulp, cellulose, silica, alumina, gelatin, agar, clay, carbon or any combination thereof. 
     
     
         4 . The anti-spoilage insert of  claim 1 , wherein deposited silver comprises nanoparticles. 
     
     
         5 . The anti-spoilage insert of  claim 1 , wherein the substantially liquid food comprises milk, dairy products or colostrum. 
     
     
         6 . The anti-spoilage insert of  claim 1 , further comprising an attachment element for attaching the anti-spoilage insert to the container. 
     
     
         7 . The anti-spoilage insert of  claim 1 , wherein the substrate is in the form of a packaging material.