The core of a fresh banana turns black

Bananas are a fruit that many people like, but because they are tropical fruits, the bananas we usually buy are ripened, and there are great skills in storing them, otherwise they will easily deteriorate. Some people buy fresh bananas and find that the core of the bananas is black when they go home to eat them. Whether the black core of the fresh banana can be cured becomes the most concerned issue, and this situation needs to be analyzed specifically.

If you peel a banana and find that the flesh in the middle is black, it is best not to eat it. The black part is mainly caused by local mold or bacterial infection due to long storage time, which can easily cause acute gastroenteritis after eating.

If there is only a very thin black core, it is edible. This is normal. The earliest bananas in the world not only have seeds, but also many and large ones, with very little flesh (the seeds of wild bananas are very large and hard, which makes it inconvenient for people to eat them). Although bananas are generally eaten as fruit in my country, in countries such as Central and South America and Africa, bananas are eaten in a variety of ways and are even regarded as food and vegetables. So people paid attention to the cultivation of banana varieties. During long-term artificial cultivation, bananas with fewer fruits and more seeds were eliminated, leaving only those with fewer seeds and more fruits.

After further improvement and cultivation, it became the banana we have today: the flesh has become more abundant, the seeds have degenerated, and it has become sweeter and more fragrant. The bananas produced have no seeds, and the few remaining seeds have degenerated into rows of small brown dots attached to the center of the flesh, forming the black core in the banana flesh.

In addition, it is not recommended to eat unripe bananas, because raw bananas contain a large amount of tannic acid, which has a very strong astringent effect and can turn feces into dry and hard feces, thus causing constipation. The most typical case is that after eating bananas, the elderly and children not only fail to help with bowel movements, but may instead suffer from obvious constipation.

How to keep bananas fresh: 1. Seal the bag with an apple. Put the bananas in a plastic bag and then put an apple in it. Then try to expel the air from the bag, tie the bag tightly, and place it in a place at home away from the heater. It can be kept for a week. 2. Bananas are best stored at room temperature between 8-23℃. High temperatures can cause them to overripen and change color, while low temperatures can easily cause frostbite.