Tangerine and tangerine is no difference, is the same kind of fruit, in different regions of people say or write differently. In the north of China, people used to write tangerine as "orange", while in the south of the region will mostly use "orange" to call. Meanwhile, tangerine and orange are both standardized characters in modern Chinese.

Tangerine fruit shape variety, usually oblate to subglobose, the peel is very thin and smooth, or thick and rough, yellowish, vermilion or dark red, very easy or slightly easy to peel, orange complex is very much or less, reticulate, easy to separate, usually tender, the center column is large and often empty. Sparsely filled, floating sacs 7-14-valved, sparsely more numerous. Sac wall thin or slightly thick, tender or rather tough, pulp sour or sweet, or with another peculiar odor, seeds more or less numerous. Seeds more or less numerous. Usually ovate, narrowly pointed apically, rounded basally, cotyledons dark green, light green or interspersed with nearly milky white, polyembryonic, rarely monoembryonic. Fl. April-May, fr. Oct-Dec.

Tangerine is one of the most common fruits in daily life, for the Rutaceae plant Fukuo orange or vermilion orange and other kinds of orange plant mature fruit, often with citrus is collectively referred to as citrus, bright color, sweet and sour, for the body's metabolism, enhance the cardiorespiratory function are helpful.

The bad side of eating too many oranges:

1, the skin is easy to become yellow: eating too many oranges will really make the skin yellow, this is because oranges are rich in yellow pigmented β-carotene, if you eat too many oranges, the concentration of β-carotene in the blood increases, which may result in the pigmentation of the palms of the hands and the soles of the feet, the appearance of the skin yellowish symptoms of cellulite.

2, causing urinary calculi: orange eat more easy to cause urinary calculi, according to research, eat 3 oranges a day to meet a person a day on the amount of vitamin C needs, if consumed too much, excessive intake of vitamin C metabolism of oxalic acid in the body will increase, easy to cause urinary calculi, kidney stones. In addition to eat more harmful to the mouth and teeth.

3, easy to eat fire: from Chinese medicine, orange taste sweet, warm, into the lungs, stomach, with appetizer, cough and lung effect. But tangerine temperature, easy to eat fire, there will be mouth sores, dry mouth, dry throat, constipation and other symptoms, so tangerine is delicious, but also in moderation.

4, eat more abdominal pain: before meals or fasting should not eat oranges, because oranges in the organic acid will stimulate the mucous membrane of the stomach wall, the stomach is not good. Moreover, the stomach and intestines, kidneys, lungs function of the cold elderly can not eat more, so as not to induce abdominal pain, waist and knee weakness and other symptoms. Oranges can eat 1 to 3 per day, do not eat greed.

Eat oranges have the benefits:

1, promote laxative: orange dietary fiber content is quite high, eat more can promote defecation.

2, lower cholesterol: oranges rich in dietary fiber is not only conducive to gastrointestinal motility, but also reduces the incidence of cholesterol.

3, eliminate fatigue: citric acid in the orange content is very high, and citric acid not only has the effect of appetizing, but also eliminate the role of fatigue.

4, beauty effects: orange vitamin C content is the highest, eat more not only to keep the skin tender, but also help to inhibit the formation of melanin.

5, cardiovascular protection: orange peel glycosides in oranges can strengthen the toughness of capillaries, lowering blood pressure, expanding the coronary arteries of the heart, for the prevention of coronary heart disease and atherosclerosis of the food.

6, anti-cancer: fresh citrus juice has a strong anti-cancer activity of the substance "Nomirin", can make the decomposition of cancer-causing chemicals, inhibit and block the growth of cancer cells.

7, the treatment of disease: orange can also assist in the treatment of a variety of diseases, such as breast lumps and swelling, meridian pain, gastrointestinal discomfort.