39.00 kcal | 9.00g | 0.20g | 1.10g |
Calories | Carbohydrates | Fat | Protein |
Detailed introduction:
Onion is a biennial or perennial plant of the Liliaceae family. It is a very common and cheap home-cooked dish. Originating from western Asia, it is cultivated throughout China and available in all seasons. The edible part of the onion is the fat underground bulb (i.e. the onion). According to its skin color, it can be divided into white skin, yellow skin and red skin.Three types:
- White-skinned species: small bulbs, white or slightly green appearance, tender meat, juicy and spicy leaves, good quality, suitable for raw food.
- Yellow-skinned species: medium-sized bulbs, thin scales, yellow outer skin, white meat with yellow inside, tender and soft meat, less water, sweet and slightly spicy taste, excellent quality.
- Red-skinned species: The bulbs are large, the outer skin is purple-red or dark pink, the flesh is white with red inside, the tissue is dense, and the texture is crispy. The meat is not as tender as the yellow-skinned species, has more water, is spicy, and is of poorer quality. But resistant to storage.
Chinese people are often afraid of its unique spicy aroma, but abroad it is known as the "Queen of Dishes" and has high nutritional value.
Quality requirements for onions: The onions should be plump, with shiny skin, not rotten, without mechanical damage or dirt, fresh onions without leaves; after storage, they should not be soft or bolting, have tight scales, low water content, and be pungent and sweet. is better. Food review:
It has a higher carbohydrate content among vegetables, but because it is spicy, it should not be eaten during MC.
Nutritional value:
1. Onions can dissipate wind and cold because onion bulbs and leaves contain a greasy volatile called propylene sulfide, which has a spicy taste and can resist cold. Resist influenza viruses and have a strong bactericidal effect;
- Onions are rich in nutrients and have a spicy smell. It can stimulate the secretion of the stomach, intestines and digestive glands, increase appetite, and promote digestion. Onions do not contain fat. Its essential oil contains a mixture of sulfur-containing compounds that can lower cholesterol. It can be used to treat indigestion, loss of appetite, and indigestion. ;
- Onions are the only ones known to contain prostaglandin A. Prostaglandin A can dilate blood vessels and reduce blood viscosity, thereby lowering blood pressure, reducing peripheral blood vessels and increasing coronary blood flow, and preventing thrombosis. It counteracts the effects of catecholamines and other blood pressure-boosting substances in the human body, and promotes the excretion of sodium salts, thereby lowering blood pressure. Regular consumption has a health care effect on patients with hypertension, hyperlipidemia, and cardiovascular and cerebrovascular diseases;
- Onions have a certain refreshing effect. It can help cells better utilize glucose, while lowering blood sugar and supplying heat energy to brain cells. It is a good dietary vegetable for patients with diabetes and mental illness;
- Onions contain a substance called quercetin 9, which is one of the most effective natural anti-cancer substances currently known. It can prevent the variation of the biochemical mechanism in the body and control the growth of cancer cells. It has anti-cancer and anti-cancer effects;
- The trace element selenium contained in onions is a strong antioxidant.It can eliminate free radicals in the body, enhance cell vitality and metabolic capacity, and has anti-cancer and anti-aging effects;
- Onions also contain a certain amount of calcium. In recent years, Swiss scientists have discovered that eating onions regularly can increase bone density and help prevent and treat osteoporosis;
- Onions contain phytoncides such as allicin, which have strong bactericidal capabilities. Chewing raw onions can prevent colds.
Nutrition Encyclopedia:
Nutrition | Content (per 100g) | Nutrition | Content (per 100g) |
Calories (kcal) | 39.00 | Carbohydrates (grams) | 9.00 |
Fat (grams) | 0.20 | Protein (grams) | 1.10 |
Cellulose (grams) | 0.90 | Vitamin A (micrograms) | 3.00 |
Vitamin C (mg) | 8.00 | Vitamin E (mg) | 0.14 |
Carotene (microgram) | 20.00 | Thiamine (mg) | 0.03 |
Riboflavin (mg) | 0.03 | Niacin (mg) | 0.30 |
Cholesterol (mg) | 一 | Magnesium (mg) | 15.00 |
Calcium (mg) | 24.00 | Iron (mg) | 0.60 |
Zinc (mg) | 0.23 | Copper (mg) | 0.05 |
Manganese (mg) | 0.14 | Potassium (mg) | 147.00 |
Phosphorus (mg) | 39.00 | Sodium (mg) | 4.40 |
Selenium (micrograms) | 0.92 |