First, the basic introduction of bananas
Banana is the fruit of banana, which belongs to Musaceae. Originated in southeast Asia, it is cultivated in all parts of southern China, especially in Taiwan Province and Guangdong. Harvest the fruit when it is ripe in autumn, and wash it for fresh use after being treated to remove astringency. There are two varieties of banana and powder banana cultivated in China. Banana fruit is short and slightly round, while banana fruit is small and slightly curved. Its flesh is sweet, and it can be used not only for raw food, but also for making a variety of processed products.
Banana is one of people's favorite fruits. Europeans call it "happy fruit" because it can relieve depression, and banana is also a favorite fruit for girls to lose weight. Bananas are also called "fruits of wisdom". Legend has it that Buddha Sakyamuni gained wisdom by eating bananas. Bananas are high in nutrition and low in calories. They contain phosphorus called "salt of wisdom", and are rich in protein, sugar, potassium, vitamins A and C. At the same time, they are also rich in dietary fiber, so they are quite good nutritious foods.
Second, the efficacy and role of bananas
Sweet and cold; Lung meridian and spleen meridian. Clear away heat, moisten intestines and detoxify. Treat fever, polydipsia, constipation and hemorrhoid.
1. Replenish energy
Athletes like to eat bananas before playing, which helps them to perform on the spot. From the point of view of nutrition, banana sugar can be quickly converted into glucose, which is immediately absorbed by the human body and is a rapid energy source.
2. Protect gastric mucosa
Bananas can alleviate the stimulation of gastric acid and protect gastric mucosa.
Step 3 lower blood pressure
Potassium has an inhibitory effect on sodium in human body. Eating more bananas can lower blood pressure and prevent hypertension and cardiovascular diseases. Studies have shown that eating two bananas a day can effectively reduce 10% blood pressure.
Step 4 moisten the intestines
Bananas are rich in soluble fiber, namely pectin, which can help digestion and adjust gastrointestinal function.
Step 5 help you sleep
Bananas are also effective for people who suffer from insomnia or emotional stress, because protein contained in bananas contains amino acids, which have the effect of calming nerves. Therefore, eating bananas before going to bed can play some calming effects.
Third, the nutritional value of bananas
1. Banana has a high water content of about 70%, and is rich in carbohydrates, protein, dietary fiber, phosphorus, potassium, vitamin A and vitamin C.
2. Banana contains three natural sugars: sucrose, fructose and glucose; Plus cellulose.
Fourth, the purchase of bananas
The peel of high-quality banana is bright yellow or bluish yellow, and the comb handle is complete, without defects and shedding. A single banana has a curved body, plump and fat fruit, fresh and bright color, smooth fruit surface, no disease spots, insect scars, mold and trauma, and the fruit is easy to peel off and the flesh is slightly hard.
When buying bananas, people often like to pick fruits with bright yellow color and no spots on the skin. In fact, the inside of this banana has not been completely de-astringent and cooked, and the pulp is hard and astringent, and the aroma cannot be fully emitted.
V. Storage of bananas
Bananas are tropical fruits, and the suitable storage temperature is118 degrees. Generally, the longest storage time is 13 days, so try not to store them in the refrigerator.
Bananas are easy to turn black when stored in the refrigerator. You should put them in a plastic bag, put an apple in it, then try to exhaust the air from the bag, tie the mouth of the bag tightly, and then put them in a place near the heating at home, so that bananas can be kept for about a week.
Six, how to eat bananas
You can also mash bananas to make banana puree, or fry banana slices. Treat hemorrhoids, bloody stool and stew with skin.