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New Material Co.,ltd.
The Advantages of Tinplate Packaging for Preserving Nutrients
Sep 19, 2023
In the world of food preservation and packaging, the choice of packaging material plays a crucial role in maintaining the quality and nutritional value of products. Tinplate, often overlooked in favor of other materials, offers several distinct advantages when it comes to preserving nutrients. In this blog post, we'll explore three key benefits of tinplate packaging.
Opaqueness: Protecting Vitamin C and More
One of the most significant advantages of tinplate packaging is its opaqueness. Why does this matter? Well, light can be detrimental to the quality of various food products. Not only does it lead to the deterioration of food, but it can also cause changes in proteins and amino acids. Vitamin C, in particular, is highly sensitive to light exposure, leading to significant losses in its content.
Research and analysis have shown that milk stored in transparent glass bottles can experience a 14-fold higher loss of vitamin C compared to milk stored in dark bottles. Light exposure can also result in oxidative odor in milk and the degradation of essential compounds like radionuclides and methionine, leading to a loss of nutritional value.
Tinplate's opaqueness allows it to provide the highest retention rate of vitamin C, making it an excellent choice for preserving the nutritional integrity of various products.
Excellent Sealing Properties: Keeping Oxygen at Bay
Effective sealing is critical for preserving the nutrients and sensory quality of packaged food items. The barrier properties of packaging containers determine their ability to prevent the ingress of air and volatile gases, which can lead to degradation. When it comes to packaging juice and other oxygen-sensitive products, the oxygen transmission rate of the container is of paramount importance.
Comparative studies on various packaging containers have consistently shown that metal cans, glass bottles, aluminum foil, and cartons with low oxygen transmission rates are superior at preserving vitamin C and preventing juice browning. Among these options, tin cans emerge as the best choice. They provide an excellent barrier against oxygen, ensuring that the products inside remain fresh and nutrient-rich.
Tin Reduction: Enhancing Flavor and Shelf Life
Tinplate's unique attribute is the presence of tin on its inner wall. During the filling process, this tin interacts with any remaining oxygen in the container, reducing the likelihood of food ingredients undergoing oxidation. This reduction effect of tin is particularly beneficial for preserving the flavor and color of light-colored fruits and juices.
Juice cans packaged with unpainted iron cans, a type of tinplate, outperform those packed with alternative materials. The improved preservation of flavor quality and color retention translates to extended shelf life. Consumers can enjoy products with superior taste and visual appeal for longer periods, making tinplate an ideal choice for food packaging.
In conclusion, tinplate packaging offers several advantages for preserving the nutritional value and quality of food products. Its opaqueness protects sensitive nutrients like vitamin C, its excellent sealing properties guard against oxygen ingress, and its tin reduction effect enhances flavor and shelf life. When considering packaging materials, don't overlook the benefits of tinplate—it may be the key to keeping your products fresh and nutritious.
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