Method for preparing tuna preservative film

Abstract

The invention discloses a method for preparing a tuna preservative film. The method is characterized by comprising the following steps: (1) heating 1.5g of sodium alginate, 2g of gelatin and 100mL of2% chitosan in a water bath of 90 DEG C for 10 minutes so as to prepare a solution A, and naturally cooling; and (2) adding the cooled solution into 0.1-0.2mL of glycerin and 2mL of maillard peptide,continuously stirring during addition, and magnetically stirring for 30-60 minutes. The method has the characteristics that tuna fillets are coated with the preservative film, so that the shelf life can be prolonged from the original 2 days to 8 days under the storage condition of 4 DEG C, and the like.

Description

Technical field: [0001] The invention relates to a preparation method of tuna fresh-keeping film, which belongs to the technical field of edible fresh-keeping film production. Background technique [0002] Preservative film is a commonly used household kitchen utensil. As the name suggests, it is to keep food fresh. However, the preservative film currently on the market is made of ethylene as the masterbatch through polymerization. This kind of preservative film is difficult to degrade and easy to cause environmental pollution. After heating, it will decompose harmful substances to the human body, which will accumulate in the body after human consumption, causing safety hazards to health; when food is frozen and kept fresh, the plastic wrap often sticks to the food and cannot be removed, and accidental ingestion may occur if you are not careful The situation seriously damages the health of consumers. [0003] Tuna is a common deep-sea fish. It is delicious and delicious, an...

AI Technical Summary

Problems solved by technology

[0002] Preservative film is a commonly used household kitchen utensil. As the name suggests, it is to keep food fresh. However, the preservative film currently on the market is made of ethylene as the masterbatch through polymerization. This kind of preservative film is difficult to degrade and easy to cause environmental pollution. After heating, it will decompose harmful substances to the human body, which will accumulate in the body after human consumption, causing safety hazards to health; when food is frozen and kept fresh, the plastic wrap often sticks to the food and cannot be removed, and accidental ingestion may occur if you are not careful serious damage to the health of consumers

[0003] Tuna is a common deep-sea fish. It is delicious and delicious, and it is loved by the public. However, the preservation of tuna is a big problem. Because ordinary plastic wrap uses ethylene as a raw material, it will affect the quality of tuna meat, resulting in fish flesh. not fresh