Nutritional value: Citrus is a kind of fruit, in fact it is a Chinese medicine that "the whole body is a treasure". The peel, core, collaterals, and tang of oranges can all be used as medicine.
China is one of the important origins of citrus, rich in citrus resources, a wide range of fine varieties, and a cultivation history of more than 4,000 years. After long-term cultivation and selection, citrus has become a precious fruit for mankind. More than 30 kinds of human health substances contained in citrus have been separated, among which are: flavonoids, monoterpenes, coumarins, carotenoids, propanols, acridinones, glyceroglycolipids, etc.
Since ancient times, orange collaterals, citrus aurantium, citrus aurantium, green peel, and tangerine peel have been traditional Chinese medicinal materials and have been widely used clinically in Chinese medicine. Modern pharmacological research believes that the carotene, vitamin C and vitamin P in orange peel are higher than the pulp.
Citrus has the effects of appetizing and regulating qi, moistening the lungs and quenching thirst, preventing cancer, promoting digestion, moistening the intestines and laxative, preventing hypertension and cerebral hemorrhage. Indications of gas in the thoracic septum, vomiting, lack of food, insufficient stomach yin, thirst in the mouth, lung heat, cough and excessive drinking.
Cooking method:Citrus is rich in nutrients and has high medicinal value, but we still have to pay attention to methods when eating. Don't lose tangerines when eating citrus: When many people eat tangerines, they like to remove the white veins on the outside of the tangerines. In fact, this way of eating is unscientific. The white network of muscles and collaterals on the outside of the orange flesh is the "Orange collateral". It has the functions of dredging the collaterals, resolving phlegm, smoothing the qi and promoting blood circulation. Pain in the chest and flanks also has auxiliary treatment effects.
Special matters: "After eating oranges, people often use orange peels to soak in water, and use fresh orange peels as tangerine peels for drying dampness and reducing phlegm. They think that drinking fresh orange peel water is good for autumn health care and disease prevention. Yes, this is actually a misunderstanding in understanding. Tangerine peel has the effect of regulating the atmosphere, drying dampness and reducing phlegm, but it is not fresh orange peel. It is made by drying or drying mature orange peel. It is generally put into After the next year, when the content of volatile oil is greatly reduced and the content of flavonoids increases, the medicinal value of tangerine peel can be reflected, and the longer it is, the better. Fresh orange peel refers to the peeled peel when eating oranges. Fresh orange peel contains a lot of volatile oil and does not have the medicinal effects of tangerine peel. Soaking fresh orange peel in water will not only fail to exert the medicinal value of tangerine peel. Because the volatile oil has a strong odor and irritation, it will also stimulate the stomach and cause health effects. Adverse effects. Therefore, do not take fresh orange peels soaked in water at will.
Tangerine peel is better to be used, so it is also called tangerine peel. Chinese medicine believes that tangerine peel is pungent, bitter, and warm in nature, and has the functions of regulating qi and strengthening the stomach, removing dampness and reducing phlegm. Li Shizhen, a master of medicine in the Ming Dynasty, pointed out: "Orange peel can relieve dryness, pungent and can disperse, and it is mild and mild. It cures all diseases and always takes its power to regulate qi and dry dampness." The ancient famous doctor Li Dongyuan once said: "Madam uses spleen and stomach The first is to regulate the qi in the treatment of diseases. For those who want to regulate the qi and invigorate the spleen, orange peel is the first.” Therefore, tangerine peel is widely used in the clinical conditioning of the spleen and stomach in Chinese medicine or in the preparation of proprietary Chinese medicines.
Cantonese Dietary Recipe: 
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