Can you still eat banana with long black spots
The appearance of black spots on the banana skin is a sign that the banana is "ripe". There are a few black spots, which are edible. It has nothing to do with safety. And at this time of banana, sweetness is very high, taste better, eat as soon as possible on the line.
However, if there are too many black spots on the banana skin, the banana is too ripe, and the black spots will enter the flesh from the skin. Peel off the banana skin, the pulp inside also appears black, so the banana belongs to serious decay, can't eat.
In addition, some people call a banana with black spots on its skin 'sesame Banana'. Strictly speaking, there is no such banana name. The banana varieties that people often buy in the market will have black spots on their skin after they are ripe.
Because banana belongs to tropical fruit, it's better to put it in a cool, dry and ventilated place, and the temperature should be slightly higher. Don't put bananas in the refrigerator, or they will be damaged and the flesh will turn dark brown.
Taboo of eating banana:
1. Undercooked bananas are prone to constipation
As we all know, when the banana is immature, the skin is green, peeling off the skin, astringent can not swallow. Ripe banana, astringent and clean, soft waxy sweet, loved by children and the elderly. Bananas are tropical and subtropical fruits. In order to preserve and transport them easily, you can't wait for them to ripen when you pick them. Instead, you have to pick them when they are green.
The bananas we eat in the north are ripened after ripening. The astringency of raw banana comes from the large amount of tannin contained in banana. After banana ripens, although it can't taste astringency, tannin still exists. Tannic acid has a very strong astringent effect, which can form feces into dry and hard feces, resulting in constipation. The most typical is the elderly, children eat bananas, not only can not help defecate, but can have obvious constipation.
2. Excessive banana consumption can cause imbalance of trace elements
Banana is a delicious fruit, so some people eat a lot of bananas at a time. As everyone knows, this is very harmful to health. Banana contains more magnesium, potassium and other elements. Although these mineral elements are necessary for human health, if you take too much in a short time, it will cause a sharp increase in the content of magnesium and potassium in the blood, resulting in the imbalance of potassium, sodium, calcium, magnesium and other elements in the body, which is harmful to health. In addition, eating more bananas can also cause gastrointestinal dysfunction and emotional fluctuations due to the reduction of gastric acid secretion. Therefore, banana should not be eaten too much.
3. Bananas should not be refrigerated in the refrigerator
As we all know, bananas are picked when they grow to be mature. Because they mature very quickly, if they are picked when they are mature, they will not taste good and look fresh. Then, after the banana is picked, the temperature requirement for storage is also higher, generally 11-13 degrees Celsius, while the storage temperature of fruits and vegetables in the refrigerator is generally about 4 degrees Celsius, up to 8 degrees Celsius. If banana is placed in this environment, it is easy to be damaged by freezing. After one day, it will become black, soft and rotten, taste bad, and even plaque or rot.
4. Avoid eating bananas on an empty stomach
We say bananas can be used as food, but we can't eat them in large quantities on an empty stomach. Because banana contains a lot of potassium, phosphorus, magnesium, for normal people, large intake of potassium and magnesium can make the body's sodium, calcium out of balance, adverse to health. So don't eat too many bananas on an empty stomach.