Plastic is currently used in a wide range of food packaging materials, it is a high molecular polymer, composed of polymer resin added a variety of additives, has the advantages of convenient transportation, light weight, easy processing, good food protection, etc. 60% of food packaging uses plastic as packaging material. This article will introduce you to Shandong smart packaging material manufacturer.
The effect of packaging materials on the weight loss rate of winter jujube during low temperature storage. The use of packaging materials significantly reduces the weight loss rate of winter jujube. During the storage period of winter jujube, the change trend of weight loss rate is the same. After the use of the packaging materials, the weight loss rate of the winter jujube is lower than that of the bare jujube fruit, which reduces the transpiration of the water, and obviously causes the weight loss rate of the fruit to decrease.
The metal materials used in current food packaging include iron, aluminum, stainless steel, and the like. The packaging material can use metal. Because the metal has better ductility, it is more convenient to process. The outer packaging formed by metal has better protection for the food inside, and the metal is easy to be packaged and thus can be promoted.
Due to the complexity of the composition of the packaging material, the precipitation of substances in the food packaging material occurs in the food, possibly due to the migration of these substances to the food, or in the food due to accidental extraction. This causes chemical migration of food packaging to have a negative impact on food.
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