Onion alias onion, onion, native to Central Asia. Onions are an ancient vegetable in Egypt and have been consumed for more than 5,000 years. In Europe and America, onions are known as the queen of vegetables. Its palatability is good, especially with outstanding health care functions. Onion contains plant broad-spectrum fungicide, and contains volatile sulfurized propylene, a bactericidal antibacterial effect, repellent to pests, and thus very few pests and diseases, is a relatively clean green food.
There are three kinds of onions produced in China: one is red onion, which has a large planting area and the strongest spicy taste; the second is yellow onion, which is sweet, light and spicy, and is welcomed by the international market; third, the white onion and the skin are white and green. Good quality and lighter taste.
How to buy onion
Generally, it is better for the onion to have a spherical body, a smooth and dry epidermis, a tight meat, and a heavy feeling in the hands. At the same time should pay attention to whether the onion onion sprouts, and germination means that the onion is not fresh.
Onion nutrients
In addition to being free from fat, onions have many nutrients such as protein, sugar, crude fiber, and selenium, thiamine, and riboflavin. In addition, onions also contain prostaglandin A and amino acids. It was determined that each 100g of onion contained 40mg of calcium, 50mg of phosphorus, 1.8mg of iron, and 8mg of vitamin C, and also contained carotene, vitamin B1, and niacin.
Onion medicinal efficacy
(1). Onion, warm, spicy, with cold, stomach, sweating, scrofula, sterilization effect.
(2). Since both vitamin C and carotene are antioxidants, onions have inhibitory effects on carcinogenic nitrates.
(3). Onions have a strong bactericidal effect, can kill Staphylococcus aureus, diphtheria bacilli, can help prevent influenza. The famous Japanese medical professor believes that regular onion can stabilize blood pressure for a long time and reduce vascular fragility, and it has a good protective effect on human arterial blood vessels.
(4). Epidemiologists have observed that people who regularly eat onions, although they are fat and fat, have no over-expressed cholesterol and are physically strong.
Onion edible method
Onion can be eaten raw and cooked, can be eaten as vegetable or seasoning, fresh or dried or dried. Onions are often placed in soups, salads, breads, stews, souffles, cakes, and other foods. They can also be used to bake, fry, smoke, steam, or eat raw. The French onion soup slowly boiled with slow fire has become a famous soup in many countries, including the United States. French fried ring-shaped onions are even comparable to French-fried potatoes. Eating mutton with onion and fried in winter can nourish the vital energy and relax the skin. It has a good therapeutic effect on physical weakness and blood stasis and qi stagnation.
Onion food taboo
Table sweats do not eat, eye patients should not eat onions. In addition, people with digestive system ulcers and people who have a tendency to have gas in their stomachs should not eat too many onions. Raw onions cannot be eaten with honey.
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