Banana is one of the four fruits in tropical and subtropical regions. It's also the favorite of many slimming girls, but if you buy a large number of bananas at one time, it's easy to turn black if you put them for a long time. Can you still eat the blackened banana skin? Is the pulp bad inside the blackened banana skin?
Can you still eat the black banana skin?
Banana peel accounts for about 30% of banana fruit mass. As soon as the banana skin turns black, it is often thrown away by some people. In fact, this is a very unwise behavior. Research shows that the number of white blood cells produced by a banana with black skin is five times that produced by a newly bought banana after 10 days' storage. Therefore, the skin of the black banana can play a more anticancer role.
Studies have found that eating bananas with blackened skin can better detoxify toxic substances in the human body and help the human body fight cancer. Eating a banana with a blackened skin can better detoxify the body and help the body fight cancer. Banana contains chemical substances that can excrete toxic substances such as active oxides in human body and improve immunity. When people ingest banana, the white blood cells in the body will be stimulated, thus increasing the number of white blood cells and speeding up their activities.
However, bananas with black skin and thin meat can not be eaten. In addition, the GI of ripe banana is higher than that of raw banana, so patients with high blood sugar or diabetes should eat less.
How to store bananas, banana skin will not become black?
1. Hang up the bananas
When the banana is laid flat, the whole weight is pressed on the contact surface, so the skin cells are easy to be compressed, so it's better to hang the bought banana to maintain its' appearance '.
If conditions do not allow, it is also best to let the banana convex side up.
2. Clean before storage
Immediately wash the bananas with clean water for several times (there is a ripening agent sprayed on the outside). After washing, wipe the water with a clean rag. The skin should be dry without water. Put the bananas in a plastic bag, and then put an apple. Try to exhaust the air in the bag, tie the mouth of the bag tightly, and then put them at home away from the heating. In this way, bananas can be stored for 5-7 days without changing color.
3. With immature apples
The immature banana and apple are stored together. Soon, the color of banana will turn yellow and become mature and delicious.
4. Cryopreservation
In addition, there is a delicious preservation method for bananas: after peeling off the skin of mature bananas, wrap them in plastic wrap and freeze them. When you want to eat, you can eat them directly without thawing. They taste like ice cream and feel more delicious!
5. Pay attention to the storage temperature
Bananas are most suitable to be stored at 8-23 degrees centigrade. High temperature is easy to over mature and discolor. If the temperature is too low, frostbite is easy to occur. Therefore, it is necessary to keep bananas in a cool and ventilated place in hot weather, and wrap them in newspapers and other articles in cold weather. Banana ripening speed is very fast, should be placed in indoor cool, dry, ventilated place, hanging effect will be better. When stored in winter, the ambient temperature should not be lower than 11 ℃, otherwise, it is prone to frostbite and blackening. Pay attention to never put the banana in the refrigerator, otherwise the flesh will turn dark brown and taste bad. When banana 8 is mature, it is better to store it at 11-13 degrees; when banana is fully mature, it is not suitable to store and should be eaten.
Scientists have found that banana has a certain anti-cancer function, the more mature its anti-cancer efficacy is higher. Banana can increase white blood cells, improve the function of the immune system, and produce 'TNF', which attacks abnormal cells.
It is very beneficial for diabetic patients to eat bananas to alleviate the disease. In addition, it has a good preventive effect on gastric ulcer. Banana is the preferred fruit for patients with hypertension. If taken for a long time, it will play an auxiliary role in the treatment.