Onions are warm and pungent, and have the effects of dispelling cold, invigorating stomach, resolving 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 and benefit the health of mother and fetus.
Extended data:
winter storage
Freezing storage method: the green onions are harvested and dried, and the leaves wilt, then bundled and placed in an open shed or an empty house in a cool and dry place with little temperature change, and buried with yellow mud for storage.
This method is not only anti-freezing and warm, but also well ventilated and not easy to rot and deteriorate. However, its storage capacity is small, dehydration is serious, the onion meat on the outer layer of onion is easy to dry up, and the cortex is thickened and lost.
Shelving method: In order to ensure the quality of shelf-stored scallion, large bundles of scallion should be opened before storage, and the injured, diseased 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 onions in the middle as a ventilation gap. If it is stored in the open air, it is necessary to 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