Ms. Wu, a 27-year-old young expectant mother, is now six months pregnant and is giving birth to a new baby at home. On this day, she suddenly craved bananas, so she opened the refrigerator to enjoy the deliciousness. At this moment, the mother-in-law came over and quickly took the banana from her hand. The mother-in-law said with full concern and advice: "Child, I heard that bananas are the most radioactive of all fruits, and you are now pregnant with a baby, we have to be very careful, this fruit can't be eaten casually." ”
Miss Wu was a little puzzled when she heard this, how could bananas be the most radioactive fruit? This made her wonder, can bananas still be eaten?
"Is the radiation dose of eating 200 bananas really the same as having a chest X-ray?"
Bananas do contain trace amounts of radiation, which is mainly related to the potassium in them. Did you know that the potassium content of bananas is well-known in the fruit world, especially the potassium-40 content, which also makes bananas "awarded" the "title" of the most radioactive fruit?
But don't worry, radioactivity doesn't mean it's a threat to our health. Whenever they hear the word "radiation", many people will feel nervous, but in fact, it is not necessary. Because, only talking about toxicity and not talking about dosage is a hooligan. Did you know that the additional dose of ionizing radiation from eating one banana is only about 0.078 μSv, which means that you have to eat about 80,000 bananas in a row to achieve the radiation dose for a chest x-ray. Therefore, the saying that "eating 200 bananas is equivalent to taking a chest X-ray" is really just a rumor.
To reach a dose of radiation that is really harmful to health? Hey, you have to eat at least 25 million bananas at once, which is obviously impossible, right? So, take it easy and enjoy the delicious bananas!
"Isn't it impossible to eat bananas with black spots, will they be poisonous?"
You may have heard the rumor that bananas with dark spots are poisonous and should not be eaten. But in fact, there are two main reasons for the formation of dark spots on bananas.
First of all, sometimes bananas will have dark spots on the skin due to infection with Ichrospora spinosa. It sounds a little scary, but don't worry, the germ has no effect on humans, and even if it enters the human body, it poses no health risk.
Another reason may be that the skin of the banana has been bumped during transportation or storage, or that the membrane of the epidermal cells has been damaged at low temperatures, and then oxidized with oxygen, resulting in the formation of dark spots.
There are also some black spots that may be a manifestation of disease, such as banana anthracnose, scab, etc. But it is important that these microbial diseases are only "interested" in bananas and are safe for humans.
So, as long as the flesh of the banana is still good, eat it boldly!
Banana preservation tips to keep dark spots away from it!
(1) Eat and buy, fresh and continuous
Buy things in moderation, especially bananas and other delicious fruits. If you buy too much and can't eat it all, the freshness will be greatly reduced. So, it's best to eat as much as you want, and enjoy it within two days so that you can taste the freshest banana deliciousness!
(2) Wrap the rhizome and ethylene does not escape
Did you know that the little villain that blackens bananas is ethylene. The riper a banana is, the more ethylene it releases. If you want to keep a banana beautiful, you need to control the ethylene around it. Most of the ethylene comes from the rhizome of bananas, so gently wrapping the rhizome will allow the banana to ripen slowly and stay fresh for longer.
(3) Store at room temperature, refuse refrigerator
Bananas are fussy creatures, and their favorite temperature is around 13°C. So, instead of leaving it alone in the fridge, let it be comfortable at room temperature. In this way, the banana will be able to maintain its own rhythm and ripen slowly and not easily turn black!
(4) Hang the banana for better ventilation
In the supermarket, you may find bananas hanging high. It's not for the sake of pretty! Hanging bananas will better ventilate and allow the little villain to slip away quickly. In this way, the bananas will stay young and ripen more slowly!
Bananas are such a delicious and nutritious fruit, they are rich in vitamin C, thiamine, riboflavin, and other good things. But be careful, bananas are not low in calories and have a high potassium content. Therefore, friends with renal insufficiency and nephritis should eat less. In addition, ripe bananas are relatively high in sugar, so diabetic friends should also enjoy them in moderation!