In the impression of many people, the recovery milk is "fake milk" and "serious loss of nutrients", and drinking it is not good for the body.
So, is the restorative milk really fake milk? Is there any nutrition? Little S gives you the answer!
What is a restorative milk?
Restored milk, also known as "reducing milk" or "reducing milk", is to concentrate and dry milk into concentrated milk or milk powder, and then add an appropriate amount of water, diluted into a solution equivalent to the proportion of water and solid substances in the original milk. In layman's terms, restorative milk is milk made by blending and reducing milk powder.
Therefore, reconstituted milk is also a kind of dairy products, which can not only be used for direct drinking, but also as an ingredient for other dairy products.
Then someone asked, why not use fresh milk directly?
On the one hand, it is because many areas of our country lack fresh milk sources and can only be compensated by restored milk.
On the other hand, compared to fresh milk, milk powder does not require cold chain storage and transportation, which can reduce production costs. If you look closely, you will also find that the "restored milk yogurt" in the supermarket is generally cheaper than the "raw milk yogurt".
Restorative milk is not nutritious?
The reason why people are worried that the restorative milk is "not nutritious" is because the restorative milk needs high temperature sterilization in the stage of turning milk into milk powder, and the process of adding water to reduce it to milk also requires high temperature sterilization. Therefore, people inevitably wonder whether repeated high temperature sterilization will greatly reduce the nutrition of the restored milk compared with other dairy products.
The truth is...
1. The traditional nutrients in the restored milk have not changed much
In fact, the content of the six traditional nutrient elements in the restored milk, such as fat, protein, carbohydrates, fat-soluble vitamins, minerals and water, does not change much compared with UHT sterilized milk. UsDA compared the traditional nutrients in raw milk, pasteurized milk, UHT sterilized milk and restored milk, and the results showed that there was no significant difference in the total protein, calcium, vitamin A, and vitamin D content of the four products.
2. There is a loss of biologically active substances in the restored milk
Biologically active substances such as immune proteins, growth factors, active enzymes and active peptides contained in milk play a very important role in the growth and development of the human body, improving immunity and antibacterial, but these biologically active substances are more sensitive to heat.
For example, the β- lactoglobulin, which exists in large quantities in milk, when the heat treatment temperature exceeds 65 ° C, its structure will change, thus affecting its function. β in the restorative milk - the function of lactoglobulin has been completely lost, and the immune protein is no longer detectable in the restorative milk. Therefore, the bioactive substances in the restorative milk are lost.
However, the main nutrients that the human body obtains from dairy products are protein and calcium, and from these two substances, the nutrition of restored milk is not worse than that of other dairy products.
Therefore, the restorative milk is not without nutrition, and it is not fake milk. As long as it is purchased through formal channels, the restored milk that meets the national food safety standards can be eaten with confidence.
How to identify restorative milk?
According to the provisions of the national standard for dairy safety, pasteurized milk is not allowed to use restored milk, and other liquid milk that uses restored milk needs to be clearly marked on the label.
In other words, the fresh milk in the supermarket freezer cannot be used as a raw material for reconstituted milk; while other ambient milk, yogurt and various modulated milk can be used as raw materials for reconstituted milk.
At the same time, the standard also stipulates that all products made of restored milk should be marked with the words "reconstituted milk" or "reconstituted milk" on the label, and dairy products produced by adding partially reconstituted milk to raw milk should be marked with "containing ××% reconstituted milk" or "containing ××% reconstituted milk" in the vicinity of the product name.
Therefore, when you buy dairy products, you must remember to check the product label and its ingredient list to choose the dairy products that suit you.
In addition, when choosing dairy products, you also need to pay attention to:
Be sure to choose products produced by regular dairy enterprises;
Pay attention to the production date and shelf life, and give priority to the product with the nearest production date;
Check the storage conditions and store the dairy products according to the storage conditions indicated on the label.
bibliography
NY/T 939-2016 Identification of reconstituted milk in pasteurized milk and UHT sterilized milk
GB 19301-2010 National Standard for Food Safety Raw Milk
GB 19302-2010 National Standard for Food Safety Fermented Milk
GB 25190-2010 National Standard for Food Safety Sterilized Milk Agricultural Products Market Weekly Correct understanding of restored milk
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