Tremella soup is women's favorite beauty and beauty soup. It is rich in collagen, which has a good moisturizing effect. At the same time, it also has the effects of Nourishing Yin, moistening dryness, sleeping, nourishing spleen, and strengthening stomach. Many times, the soup can't be finished at one time, while the saying that the soup can't be drunk overnight is circulating on the Internet. So, can't the soup be drunk overnight?
There is a saying on the Internet that "tremella soup can't stay overnight". After the night, it is believed that the nitrate contained in tremella soup will be reduced to nitrite under the decomposition of bacteria, which will damage the hematopoietic function of human beings and is one of the common carcinogens.
Can you drink the tremella soup overnight
Can we eat the tremella overnight, can we eat the tremella soup overnight? Is there any poison in the tremella for the night?
Looking at these accounts as like as two peas of white fungus, they found that almost all of the descriptions were quoted in the same place, because the lines and wording were the same and they were very suspicious.
There are three doubtful points:
First of all, is there much nitrate in Tremella? Will it increase after foaming?
Second, how much more nitrite would it increase if it were stored in room temperature and refrigerator for 24 hours (overnight)?
Third, how much do they eat? Is nitrite intake dangerous?
Answer these three questions:
Ingredients of Tremella
The main component of Tremella is polysaccharide. It does contain more nitrogen, including nitrate, but that is the content of dry products. After hair soaking, a jin of Auricularia can be changed into 9-10 Jin, in which the nitrate content has become one tenth. The nitrate content of fresh agaric is only about 120mg / kg, which is far lower than that of many leafy vegetables (FAO standard: the nitrate content of primary fresh vegetables is 432mg / kg). The content of nitrite is about 2.5mg/kg, which is much lower than the standard of fresh vegetables (the standard of pollution-free vegetables is lower than 40mg / kg). In addition, nitrate and nitrite are highly soluble substances. In the process of hair foaming and cleaning, they also need to be re dissolved in the soaking water, so the content of more washing will further decrease.
Will nitrite increase after Tremella is placed overnight?
Take the experimental data of Auricularia auricula as an example. The content of fresh Auricularia auricula after 24 hours storage at room temperature and refrigerated room was determined. It was found that the change was very small at any temperature. The effect of cooking on the nitrite content of Auricularia auricula was also measured. After 24 hours storage at room temperature, the nitrite content increased from 2.19mg/kg to 2.59mg/kg, and the effect of such a small change on human health can be ignored. Although there is no data for Tremella fuciformis, theoretically, the law of its change should be similar to that of Auricularia auricula.
The last important question is how many Auricularia and Tremella can people eat every day?
Generally, the consumption is no more than 5g of dry products, that is, about 50g of fresh products. If you use Tremella to make soup, the quantity is less, and the quantity you eat every day is only one or two. Even more, the daily intake of nitrite is no more than 0.3mg when the fresh weight is 100g (about two bowls). The dose of nitrite poisoning is more than 200 mg, hundreds of times less. In contrast, when people eat pickles, fresh vegetables and pink meat, ham, sausage, delicacy meat, soy sauce meat, etc., the amount of nitrite will be dozens or even hundreds of times higher than this amount.
Therefore, the so-called overnight consumption of Tremella will cause poisoning, is alarmist. At present, there are no reports of poisoning caused by eating Tremella or Auricularia auricula overnight. Unless someone intentionally adds nitrite or nitrate to tremella, it is possible.
According to the above analysis, it is safe to refrigerate the tremella soup overnight. Of course, as with all foods, the cold storage time should not be too long. In addition, it should be fully heated before eating to prevent microbial infection. This is a general rule applicable to all frozen foods. Some people find experts to prove that tremella soup does not produce nitrite. If you boil the tremella soup more than once, divide it into small parts and put it in the refrigerator, you can keep it for 1-2 days without worrying. If the tremella bubble hair more than once, also only need to put in the refrigerator, to avoid odor, the next day can continue to cook and eat.
Whether the tremella soup can be drunk overnight or not, the above answers for you. In fact, under the cold storage condition, the tremella soup can be drunk for a day or two, and there will be no poisoning.