| 摘要 |
A food casing disclosed that is treated, preferably impregnated, with an effective amount of a quaternary ammonium compound solution to remove or inhibit the growth of Listeria on food to be stuffed into the casing. The quaternary ammonium compound is preferably an alkylpyridinium salt, is more preferably selected from the group consisting of cetylpyridinium chloride and cetylpyridinium bromide, and is most preferably cetylpyridinium chloride. The solution is preferably impregnated in the food casing in a weight percent that is not greater than approximately 1 %. The quaternary ammonium compound is present in the solution in a weight percent that is preferably substantially within a range of from approximately 1 % to approximately 30 %, that is more preferably substantially within a range of from approximately 5 % to approximately 25 %, and that is most preferably substantially within a range of from approximately 10 % to approximately 20 %. A solubility enhancing agent, such as propylene glycol, may be present in the solution, preferably in a weight percent that is substantially within a range of from approximately 50 % to approximately 60 %. The food casing may be tubular or web shaped comprised of any conventional food casing material such as cellulose, collagen, plastic, or animal intestine. To prepare a frankfurter, a food casing is immersed in a quaternary ammonium compound to impregnate the food casing, the food casing may be shirred, and the food casing is then filled with food. After filling, the food is heated and cooled, and the casing is peeled from the cooled food. |
