Are vegetables suitable for storage in the refrigerator in summer? Will you lose nutrition?

The nutrients of freshly picked vegetables are different from those of a day or two, and the nutrients will definitely be lost. After washing, put it in the refrigerator, too. Low temperature will be slower than nutrient loss. After washing, the natural protective film of vegetables is destroyed and the storage time is shorter. After cleaning, as long as the vegetables are fresh and there is no invasion and infection of some bacteria, the nutrients in the refrigerator will rarely be lost.

The vegetables in the refrigerator have a certain amount of moisture and look fresh. Reduced nutrients, no washing; But before taking it out for use, it still needs to be washed again, otherwise there will be nitrite on it. But it should be stored in a fresh-keeping box or bag. Vegetables are usually put in the refrigerator for two days a day, which won't last long. Otherwise, there will still be less nutrition. In the case of cold storage, these substances will not be denatured, so the nutrients will not be affected, which you can rest assured. Only some vegetables will destroy some vitamins during heating, which will affect the nutritional value of vegetables.

The food is good, but the nutrition has been lost.

Kan Quanjian, deputy dean of the College of Food Science of Southwest University, told reporters that at present, the most common way for citizens to preserve food is refrigeration, which can really extend the preservation time of food. He said that meat, for example, may be eaten after a year and a half, and it is not "bad", but the taste will definitely change, because ice will also destroy cells and tissues.

Han Ping, a professor of nutrition at Zhengzhou University School of Public Health and director of China Nutrition Society, told this reporter that even in the freezer, some microorganisms can survive and reproduce, but at a slower speed. He said that bacteria have different preferences for temperature. Some bacteria belong to "psychrophilic bacteria" and can move at MINUS 40℃, but the lower the temperature, the less frequent the activity. The common Shigella causing diarrhea belongs to psychrophilic bacteria.

"Wrapping meat with plastic wrap or plastic bag for freezing, isolating air and reducing oxidation can reduce fatty acid corruption." Han Ping, a professor of nutrition at Zhengzhou University School of Public Health, said that using food bags for independent packaging not only avoids secondary freezing, but also is hygienic. "I think buying fresh vegetables and meat every day is the best choice. If you have to hoard food, make sure that the food stays in the refrigerator for no more than a week. "