1, ordinary onion

Many varieties, good quality, large cultivation area. According to the length of the white onion, there are long white onion and short white onion. Long white onion white spicy flavor, famous varieties of Liaoning Gai Ping onion, Beijing high foot white, Shaanxi Hua Xian valley onion, etc.; short white onion white onion white short thick and fat, famous varieties of Shandong Zhangqiu thigh onion, Hebei's leaf onion, etc..

2, divided onion

Leaf color is thick, white onion white is pure white, spicy flavor is light, good quality.

3, building onions

white and sweet flavor, onion leaves short, poor quality.

4, Hu onion

Mostly cultivated in the south, the texture is soft and light flavor, to eat onion leaves.

Expanded Information:

Effects of green onions:

Green onions contain protein, carbohydrates and other vitamins and minerals, which are very beneficial to the human body.

1, antipyretic, expectorant. The volatile oil and other active ingredients of green onions have the effect of stimulating the sweat glands of the body to sweat and dissipate heat.

2, promote digestion and absorption. Onion also stimulate the body's digestive secretion, can strengthen the spleen and stomach, improve appetite.

3, antibacterial, antiviral. Allicin contained in the green onion, with obvious resistance to bacteria, viruses, especially dysentery bacilli and skin fungi inhibitory effect is stronger.

4, anti-cancer. Pectin contained in onions, can significantly reduce the occurrence of colon cancer, anti-cancer effect, onions within the allicin can also inhibit the growth of cancer cells.

5, scallions also have the effect of lowering blood lipids, blood pressure, blood sugar: if eaten with mushrooms can play a role in promoting blood circulation

Baidu Encyclopedia - Scallions