The weather was cold and dry. Grandma Confused inadvertently discovered a strange phenomenon: the same in the refrigerator, the apples bought from the supermarket are still so rosy and watery, while the apples picked from the suburbs have become green and not so bright in color. What's going on? Could it be that they are of different varieties?
Smart Grandpa reminds: The surface of the fruit is coated with a film agent, which can not only inhibit the evaporation of water, but also prevent the invasion of microorganisms, and also form a modified atmosphere layer to extend the shelf life of the fruit.
Smart Grandpa reminds: The coating agent is a kind of food additive, which plays a role on the surface of food, just like in order to protect the skin in winter, people need to apply a thin layer of skin care cream.
Smart Grandpa reminds: Food coating agent has the effect of preserving quality, preserving freshness, glazing, preventing food sticking, and maintaining the stable quality of candy.
Smart Grandpa reminds: mineral oil in the human intestine can not be digested and absorbed, and hinder the absorption of water, a large amount of intake can lead to diarrhea, and hinder the absorption of fat-soluble vitamins and calcium and phosphorus, so it is only allowed as eggs, gel candy coating agent; fruit wax is used for fruit preservation, only for smearing, can not eat.
Source/China Medical News