Onion is warm and pungent, and has the effects of dispelling cold, invigorating stomach, eliminating phlegm and sterilizing. Onion contains a lot of special trace element selenium;
It has the function of preventing human cells from aging, and the malic acid and phosphate sugar contained in it can excite the nervous system, stimulate blood circulation, promote sweating and enhance the secretion of digestive juice; A variety of minerals and vitamins contained in onion can promote fetal development, which is beneficial to the health of mother and fetus.
Extended data:
Winter storage
Frozen storage method: the green onions are harvested and dried, and the leaves wilt, then bundled into bundles, placed in an open shed or an empty house in a shady, dry place with little temperature change, and buried with yellow soil for storage.
This method is not only anti-freezing and warm, but also well ventilated, and it is not easy to rot and deteriorate. However, it has less storage and serious dehydration, and the onion meat on the outer layer of scallion is easy to dry up, and the cortical thickening loss is large.
Shelving method: In order to ensure the quality of shelf-stored scallions, before storage, large bundles of scallions should be opened, and the injured, sick and wet stems should be removed, and then bundled into small bundles weighing about 7- 10 kg, which should be stacked on the storage rack in turn and placed horizontally or vertically;
Leave a bundle of onion in the middle as a ventilation gap. If it is stored in the open air, you should prepare the necessary cover, pay attention to climate change during storage, and do a good job of rain protection and warmth in time.
References:
Baidu Encyclopedia-Onion