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What Are The Characteristics Of The Iron Box

Time: 2021-11-11 12:00:18

In addition to the deteriorating reaction of food, light can also cause changes in protein and amino acids.

Opacity

In addition to the deteriorating reaction of food, light can also cause changes in protein and amino acids. Vitamin C is more likely to interact with other food ingredients when exposed to light, resulting in a large amount of loss. According to research and analysis, the loss of vitamin C in clear glass bottled milk is 14 times higher than that of dark bottled milk. Light will also cause milk to produce oxidative odor, as well as nuclides, methionine, etc., which will lose nutritional value. The opacity of tinplate makes the preservation rate of vitamin C the highest.

Good tightness

The barrier properties of packaging containers to air and other volatile gases are very important for the preservation of nutrients and sensory quality. Comparison of various juice packaging containers proves that the oxygen transmission rate of the container directly affects the browning of juice and the preservation of vitamin C; metal cans, glass bottles, aluminum foil laminates, and cartons with low oxygen transmission rate can preserve vitamin C It is better, and among them, the iron can is the best.

Tin reduction

The tin on the inner wall of the tinplate interacts with the oxygen remaining in the container during filling, reducing the chance of food ingredients being oxidized. The reduction effect of tin has a good preservation effect on the flavor and color of light-colored fruits and juices. Therefore, juice cans packed in unpainted iron cans have better nutrition preservation than juice cans packed with other packaging materials, and the browning changes are slight. The flavour quality is better accepted, and the shelf life is thus prolonged. 






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What Are The Characteristics Of The Iron Box
In addition to the deteriorating reaction of food, light can also cause changes in protein and amino acids.
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