First, the relationship between the preservation of chicken soup with auricularia auricula and microbial contamination
In nature, there are many kinds of creatures, such as visible large creatures, such as us humans, animals and plants, and invisible creatures, such as bacteria and yeast. They are organisms that can affect the time when we store food-bacteria, yeast, various molds and actinomycetes.
Under normal circumstances, it is no problem to store the leftover food at natural temperature for two days in winter, but it is obviously impossible in summer, because the temperature in summer is relatively high, the microbial community is active and the growth and reproduction ability is strong, which will cause serious pollution to the leftover food. Generally, it only takes 12 hours to make the leftover food deteriorate and produce odor, resulting in the loss of re-consumption.
Second, the black fungus stew chicken soup can be stored in the refrigerator, which can obtain a lower pollution probability.
Microorganisms are very sensitive to temperature perception. Generally, in the natural environment, as long as the temperature is above 5 degrees to 42 degrees, they will gradually accelerate their growth with the increase of temperature, and 35 degrees is the best growth temperature, that is, in the environment of 35 degrees, the activity of microorganisms is the highest. Under such environmental conditions, the time for microorganisms to produce biotoxins in cooked food is only 4 hours, which takes about 6 hours.
However, microorganisms are almost dormant under the environmental conditions of 4 degrees, and the spores of these organisms cannot germinate under the environmental conditions of 4 degrees. Spores will be dormant, and germinated cells will grow very slowly because of low temperature, so their ability to destroy food is quite limited.
So the refrigerator uses this principle to keep food fresh. By using the refrigerator, microorganisms can be kept in a low growth state, thus delaying the process of pollution.
Storing the chicken soup with auricularia auricula in the refrigerator can obtain a low temperature environment, so that microorganisms can not grow and reproduce in these ingredients, thus achieving the purpose of preservation. So it's a good idea to keep cooked food in the refrigerator.
Third, the conclusion
Black fungus soup is completely edible when stored in the refrigerator for two days, unless the refrigerator has lost the ability of constant temperature. In addition, it is worth noting that because the refrigerator has not been cleaned for many years, some low-temperature tolerant flora multiply in the refrigerator and gain a high degree of low-temperature tolerance through mutation, so even in the refrigerator, food may be contaminated and corrupted.
Therefore, after the food is taken out of the refrigerator, it is still necessary to judge whether the food is edible by smelling whether it has changed, which will better ensure the food safety and be beneficial to health care.