1, benefiting qi and enriching blood, enhancing memory: longan is rich in glucose, sucrose and protein, and its iron content is also high, which can improve heat energy, supplement nutrition and promote hemoglobin regeneration and enriching blood. Experimental research shows that longan meat is beneficial to the whole body, especially to brain cells, which can enhance memory and eliminate fatigue.

2, soothe the nerves: longan contains a lot of elements such as iron and potassium, which can promote the regeneration of hemoglobin to treat palpitations, palpitations, insomnia and forgetfulness caused by anemia. Longan contains nicotinic acid as high as 2.5 mg (100g), which can be used to treat dermatitis, diarrhea, dementia and even mental disorders caused by nicotinic acid deficiency.

3, nourishing blood and preventing miscarriage: longan contains more iron and vitamins, which can reduce contractions and sagging, which is beneficial to pregnant women and fetuses to accelerate the development of metabolism and has the effect of preventing miscarriage.

4. Antibacterial and cancer cell inhibition: Animal experiments show that longan can inhibit JTC-26 tumor by more than 90%, and has a certain inhibitory effect on cancer cells. Oral longan extract can improve symptoms by 90% and prolong life by about 80% for cancer patients. In addition, longan water extract (1∶2) has inhibitory effect on Microsporum longan cultured in vitro.

5, lowering blood fat to protect the heart and delay aging: Longan meat can lower blood fat and increase coronary blood flow. It has a strong inhibitory effect on flavoprotein-brain monoamine oxidase B (MAO-B) closely related to the aging process.

6. Improve immunity: protein is the most important nutrient to maintain immune function and the main component of white blood cells and antibodies.

7. Eliminating food stagnation and strengthening the spleen: it is suitable for abdominal distension, loose stool, loss of appetite, weakness of limbs and mental fatigue caused by weak temper and poor transport.

Taboo of dried longan

1, people with phlegm-fire in the spleen and stomach, dampness stagnation, indigestion, nausea and vomiting can't eat dried longan.

2, eating more longan is easy to get angry, so it is not appropriate to eat more longan meat.

3. Longan has a high content of dry glucose, so diabetic patients should not take more.

Extended data

The dried longan is graded according to its size, usually before it turns yellow, and it is graded according to the size of the hole screen with a special grading screen. Traditionally, Quanzhou bubble circle is divided into four grades: big bubble, medium bubble, small bubble and bottom bubble. Xinghua (Putian) longan stems are divided into three, four, five and middle circles, and small fruits below the middle circle are equal fruits.

The quality of dried longan varies greatly. High-quality dried longan has round appearance, beautiful color, sunken shell, hard and brittle. There is no "ringing" phenomenon in shaking, and the skin of the stone is separated from the seed kernel, so the shaking can move slightly, which is called "inner ring", which is a good performance of dryness.

People's Network-Check the nine effects of dried longan, and recommend dried longan for healthy diet.