Why is the heart of a banana black

I believe everyone is familiar with the fruit banana. It can moisturize the intestines and promote bowel movements, and is very good for regulating gastrointestinal digestion. However, when eating bananas, we must pay attention to the color, because some bananas have a black heart. This is because the banana has been oxidized by air. It is best not to eat this kind of banana, as it will affect human health. It is recommended that everyone pay attention to it.

Can I still eat a banana if it's black inside?

That is the "browning" reaction of bananas, which is produced by the oxidation of polyphenol oxidase in bananas by oxygen in the air. This kind of banana is edible, but it is best not to eat it.

The black area is quinone-like substances formed by polyphenol oxidase and substances in the banana. They are derivatives of benzene and are harmful to the human body.

Can I eat a banana with a black core?

This is a normal phenomenon. According to the popular science of the Agricultural Science and Technology Association, the earliest bananas in the world not only had 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.

How to store bananas for a long time

We probably won't be able to eat all the bananas we bought in a short time, so many people will put the bananas in the refrigerator. This will cause the banana flesh to turn dark brown and affect the taste. The correct way is to rinse the whole bunch of bananas with clean water several times to reduce the corrosion of the ripening agent. Under the same external conditions, the rinsed bananas can extend the storage time by 5 to 7 days without deterioration.