Everywhere, wide knots "taste" edge, there is such a species, soft and delicious, attractive appearance, suitable for all ages, this thing is called "banana". Whenever I don't know what fruit to eat, I buy a few bananas, which can be used as dessert after meals, and can also be on the top when it is too late to eat breakfast in the morning; How can an excellent fruit not be favored; Especially when some people are depressed and unhappy, they will take a banana to relieve their troubles, what is the principle of this? There's a lot you don't know about bananas; Summer banana, restore comfort.
Eating a banana, driving away fatigue, regulating emotions, there is indeed a thing:
Bananas, which belong to the "high potassium fruit", contain 286-428 mg of potassium per 100 grams, and the mineral potassium itself can maintain normal blood pressure and heartbeat, which can help the body prevent blood pressure rise and muscle spasms; In addition, the magnesium content in bananas is also remarkable (14.60-40.70 mg/100 grams), and magnesium has the effect of eliminating fatigue.
In addition, the tryptophan contained in bananas can be converted into serotonin itself, and serotonin is an inhibitory neurotransmitter, which will make the body quiet after ingestion, promote calm mood, reduce pessimism, and help happiness.
It is worth noting that bananas themselves are rich in sugar substances, which can be quickly converted into glucose and absorbed by the human body after entering the body, which is a "rapid energy source", so eating a banana when the body is tired and depressed can quickly replenish physical strength and relieve emotions.
Banana is a delicious and nourishing fruit, in addition to the basic energy supply nutrients, bananas are also rich in riboflavin, thiamine, niacin, and vitamin C and other nutrients; To its credit, each 100 grams of banana contains 60 mcg of carotene.
Long-spotted bananas are poisonous and inedible?
Consumers will always find that "there are many bananas with black spots" in the process of buying bananas, and it is rumored that "such bananas cannot be eaten, and they will be poisoned when eaten".
Explaining this matter from the principle, for bananas, the long spots on the banana peel or the blackening of the banana skin are mainly related to two reasons.
One is the "natural oxidation of banana peel", the "carbon cooprotechnics" in the banana epidermal cells after being bumped by the outside world or in a low temperature environment (frozen) will cause the outer layer of cell membrane damage, and then the carbon oxide will inevitably come into contact with oxygen, after oxidation reaction it will become black, and the small spots on the outer skin will also be generated.
Second, bananas are also prone to the occurrence of black spot problems after "illness" (anthrax), which is caused by banana infection with "Banana Spiny Spore", which is basically a "fungal disease". But don't worry, this germ is insulated from humans, does not infect the human body and affect health.
In other words, even if the banana has black spots, do not panic, do not think, the above two factors will not be harmful to the human body. From a practical point of view, if your banana has a local banana peel blackening (or small black spots), as long as the internal pulp does not appear to spoil and other issues, you can be assured to taste.
Eating bananas will cause radiation to the body! Hurt a lot?
"Bananas have radiation, and it is very bad to eat." Although it is a statement, it is also a rumor without scientific principles.
The so-called radiation actually comes from the "mineral potassium" contained in bananas, bananas are a potassium-rich fruit, and a small part of this "potassium" is radioactive "potassium-40"; But contains not a lot, this dose is minimal, eating will not cause harm to the human body.
For example, the average radiation dose to adults due to air radiation sources is 2.3 msv/year; As for how much 2.3 msv is, in contrast, in general, the radiation dose of a chest X-ray taken during the physical examination is about 0.02 msv; from another point of view, the radiation dose of eating 200 bananas in one breath is equivalent to the amount of radiation received by taking a chest X-ray. Therefore, the "amount" of radiation by eating bananas is not worth mentioning at all, please rest assured. As an example, since the radiation dose caused to adults by air radiation sources is on average 2.3 msv/year; As for how much 2.3 msv is, in contrast, in general, the radiation dose of a chest X-ray taken during the physical examination is about 0.02 msv; from another point of view, the radiation dose of eating 200 bananas in one breath is equivalent to the amount of radiation received by taking a chest X-ray. Therefore, the "amount" of radiation by eating bananas is not worth mentioning at all, please rest assured.
Bananas turn black from being put in the refrigerator, can I still eat them?
Let's start with the answer – yes!
Banana black spots are a common phenomenon, but this situation has nothing to do with banana deterioration, nor does it mean that there is a "huge loss of nutrients". Speaking of roots, banana black spots are caused by oxidation of polyphenolic compounds in the banana peel.
Similar to tomatoes, mangoes and other fruits and vegetables, bananas themselves are also a "post-ripening fruit", which is picked in the "green" state, and the intermediate process will be stored in an environment where temperature and gas are controlled, and will be taken out before sale to use ethylene for ripening, and finally sold on the market. In principle, bananas themselves will produce ethylene during the ripening process, and the starch in the bananas during storage will be converted into sugar, so the bananas will become sweeter and sweeter; The reason why the bananas are softer and softer is due to the pectin decomposition of bananas during storage.
In other words, the statements you see such as "bananas will go bad in the refrigerator" and "poisonous" are actually fabricated. For the preservation of bananas, it is fundamentally not recommended that you refrigerate, but refrigeration will not be harmful to the body, for the fruit represented by bananas, it is recommended that you eat and buy now, if leftover, it is best to save at room temperature, too much can also be frozen (after peeling).
In this way, bananas are not easy to grow spots and are not easy to turn black:
Fundamental Principles – Buy Now:
Fresh food is safer and more nutritious, and the same is true for bananas; To buy bananas, it is recommended to buy a small amount at a time, it is best to eat them within two days, and it is better to eat them now.
More suitable for room temperature preservation:
Relevant experiments have proved that a temperature of about 13 degrees Celsius is the optimal storage temperature for bananas; Compared with refrigerator storage and room temperature storage, bananas will ripen more slowly, and they will not turn black, which is more reliable.
The rhizome wrapped in the banana when storing:
Since ethylene is the fundamental substance that causes the skin of bananas to turn black, as bananas ripen, they will release more and more ethylene, controlling the ethylene around them, which can undoubtedly delay the ripening rate of bananas. Most of the ethylene comes from the rhizome of the banana, and the rhizome of each banana is wrapped tightly with plastic wrap to delay its ripening process, which can extend the freshness time for about a week.
If possible, bananas can be hung up for storage:
Bananas are hung for storage to enhance their ventilation so that ethylene can disappear faster with the wind and delay the aging of the fruit.
People take food as the sky, not only to eat nutritious and healthy, but also to eat happily, and bananas are the best in the "happy food"; Although the blackened bananas don't look so cute anymore, such bananas can be eaten anymore; Although bananas produce radiation, the loss of radiation does not threaten the health of the body. A banana, a delicacy, a little care, a health, I hope you all laugh.
Note: Wang Silu's original content, I hope to help you; The image comes from the Internet, if there is infringement, please contact to delete.