How does modified atmosphere packaging film become a preservation master of customized gas microenvironment?
Publish Time: 2024-12-18
Modified atmosphere packaging film is a packaging technology that extends the shelf life of food and maintains its freshness by adjusting the gas composition in the package. This packaging method can be regarded as a "preservation master of customized gas microenvironment" because it can create an optimal gas environment for the packaged food, thereby inhibiting bacterial growth, slowing down the oxidation process, and maintaining the color, taste and nutritional value of the food.
Modified atmosphere packaging film changes the respiration rate of food and the growth conditions of microorganisms by controlling the concentration of oxygen (O2), carbon dioxide (CO2) and other gases in the package. Generally speaking, MAP reduces the oxygen content in the package while increasing the proportion of carbon dioxide to achieve the following purposes:
Inhibit the growth of aerobic bacteria and mold: Low oxygen environments are not conducive to the reproduction of these microorganisms.
Slow down the respiration of fresh fruits and vegetables: Lowering oxygen levels can slow down the ripening and aging process of fruits and vegetables.
Prevent fat oxidation and color change: Low oxygen environments can reduce oxidation reactions and maintain the color and flavor of food.
Advantages and Applications
Extend Shelf Life: By controlling the gas composition, the shelf life of food can be significantly extended and waste can be reduced.
Maintain Food Quality: Maintain the taste, color and nutritional content of food to improve consumer satisfaction.
No Additives Required: In many cases, the use of chemical preservatives can be reduced or avoided.
Environmental Protection: Due to the extended shelf life of food, the amount of food discarded due to expiration is reduced, thereby reducing resource waste.
Fresh Fruits and Vegetables: Such as apples, strawberries, green leafy vegetables, etc., to maintain their bright colors and freshness.
Meat Products: Such as beef, pork and poultry, to inhibit bacterial growth and prevent oxidation.
Seafood: Such as fish and shellfish, to maintain their freshness and extend shelf life.
Baked Goods: Such as bread and pastries, to delay starch aging and maintain softness.
Dairy Products: Such as cheese and yogurt, to slow down microbial growth and maintain taste.
With the advancement of materials science and the increasing demand for food preservation, modified atmosphere packaging film will develop in a more efficient, environmentally friendly and cost-effective direction. For example, the development of smart packaging films that can monitor the gas composition inside the package in real time and automatically adjust it will bring revolutionary changes to food preservation.
