Citrus fruit is huge, bright in color, easy to peel, crisp and tender in meat, and rich in juice and residue; The taste is fragrant and sweet, and there is a sweet honey feeling after eating. It has a unique flavor and enjoys a high reputation at home and abroad. The edible part of citrus fruit can reach 68%-75%, and the soluble solid content is 12%- 15%. Every 100 ml of fruit juice contains11-3 g of sugar and 0.5- 1.0 g of acid. 100g The edible part of citrus fruit contains 17 1.66 joules, 88.6g of water, 0.7g of protein, 0.3g of fat, 9.6g of sugar, 0.4g of fiber, 0.4g of ash, 25mg of calcium, 19mg of phosphorus, 0.2mg of iron and. A large number of vitamins and minerals can improve human health and are indispensable substances in human tissues; Pectin can lower cholesterol in the blood; In addition, regular consumption of citrus fruits can decompose fat and discharge harmful heavy metals and radioactive elements accumulated in the body.

Second, oranges

Oranges are common fruits in people's lives. They are not only excellent edible fruits, but also beneficial to human health. Oranges are rich in vitamin C and nicotinic acid, which can reduce blood lipid and cholesterol in human body. Therefore, for people with coronary heart disease and hyperlipidemia, eating more oranges is very beneficial.

A survey of 6045 people by Japan Fruit Research Institute found that people who love oranges have a relatively low probability of suffering from coronary heart disease, hypertension, diabetes and gout. They also found that hesperidin contained in the peel of oranges and other citrus fruits has the effect of inhibiting cancer of liver, esophagus, large intestine and skin.

Professor Inamori Tamura, president of the Japanese Chinese Medicine Dietotherapy Research Association, believes that vitamin C and citric acid are the most abundant in terms of the nutritional value of oranges. The former has the function of beauty, while the latter has the function of eliminating fatigue. If you eat the thin skin of oranges together, you can also eat dietary fiber (pectin) in addition to vitamin C, which can promote defecation and lower cholesterol. It is worth noting that hesperidin can strengthen the hardness of capillaries, lower blood pressure and dilate the coronary artery of the heart. Therefore, it can be said that oranges are food to prevent coronary heart disease and arteriosclerosis.

There are also exquisite ways to eat oranges. The best way to eat oranges is baking. The specific method is to wash oranges (1 ~ 2) and soak them in boiling water at 40℃ ~ 50℃/min, then dry them with a cloth and put them on an iron net, and barbecue them with medium fire until they are slightly burnt. In this way, the ingredients in the orange peel can penetrate into the orange, and after such treatment, the orange peel can also be eaten together. Eating 1 orange every morning, noon and evening has certain curative effect on arteriosclerosis, hypertension, cough, asthma, anorexia, dyspepsia, gastritis, hyperacidity and constipation, and has the effect of skin care and beauty.

Orange beauty

Squeeze orange juice and apply it directly on your face, which can make your skin refreshing and not greasy immediately. Because oranges contain fruit acid, vitamin C and vitamin A. Wiping your face with orange juice can enhance skin resistance, thus reducing skin dryness and achieving the effect of skin care and beauty.

It is worth noting that some ingredients in the diet, such as citric acid, can increase the absorption of aluminum. Citrus fruits and orange juice drinks are rich in citric acid, so when taking aluminum-containing antacids, you can't eat citrus or orange juice at the same time, and the interval between them should be at least 2 ~ 3 hours. Otherwise it will increase the aluminum content in the body.

Everyone likes to eat oranges, but they can't eat more than three a day. Eating too much is harmful to the mouth and teeth. Also be careful not to drink milk within 1 hour before and after eating oranges, because the protein of milk will solidify when it meets the fruit acid of oranges. Affect digestion and absorption; Oranges should not be eaten before meals or on an empty stomach, because the organic acids in orange juice will stimulate the gastric mucosa. If you eat too many oranges at a time, you will often have blisters on your lips, dry mouth, sore throat, dry stool and other symptoms, commonly known as "getting angry." The reason is that oranges are rich in nutrition, and every 1000 grams of oranges can produce 5820 kilojoules (1390 kilocalories). After eating a lot of oranges, the heat generated can not be completely converted into fat storage, nor can it be consumed in time, so it will get angry when accumulated.