I mean, the benefits of bananas are too many to count. As we all know, old people, children and people with bad teeth can eat it. Constipation, eat it to relieve constipation. If you are hungry, you can eat it quickly. Another thing you may not know is that bananas have a name - happy fruit! Eating bananas can bring happiness to people.
Although bananas have so many advantages, you certainly don't know after eating them for decades. Bananas actually have radiation! Can you rest assured of eating bananas?
Will eating bananas make you happy
Banana, originally a "high potassium fruit", contains 286-428 mg of potassium per 100g. The mineral potassium itself can maintain normal blood pressure and heartbeat, which can help the body prevent rising blood pressure and muscle spasm;
In addition, the magnesium content in bananas is also commendable (14.60-40.70 mg /100g), and magnesium has the effect of eliminating fatigue.
In addition, tryptophan contained in bananas can be converted into 5-hydroxytryptamine, which is an inhibitory neurotransmitter. After ingestion, it will make the body quiet, promote calm mood and reduce pessimism.
Moreover, bananas are rich in sugars, which can be quickly converted into glucose and absorbed by the human body after entering the body. This is a "fast energy source", so eating a banana when the body is tired and depressed can quickly supplement physical strength and relieve mood.
Banana is a delicious and nutritious fruit. In addition to the basic energy supply nutrients, bananas are also rich in riboflavin, thiamine, niacin, vitamin C and other nutrients. Each 100g banana contains 60 micrograms of carotene.
Bananas with long spots are poisonous. Can't you eat them
When you buy bananas, you may find that "many bananas have black spots", and there is a rumor that "such bananas can't be eaten. Eating them will cause poisoning".
In fact, there are two main reasons for the long spots on the banana skin or the blackening of the banana skin.
The first is "natural oxidation of banana skin". Banana epidermal cells will damage their outer cell membrane after being knocked by the outside world or in a low-temperature environment (freezing). Then oxidized carbon will inevitably contact with oxygen. After oxidation reaction, it will turn black, and small spots on the outer skin will also be generated.
Second, bananas are also prone to the occurrence of black spots after "getting sick" (anthrax). This problem is caused by banana infection with "Chaetoceros banana", which is fundamentally a "fungal disease". But don't worry, this kind of bacteria is isolated from human beings, and will not infect the human body and affect health.
In other words, even if the banana has black spots, don't panic. Neither of the above mentioned factors will do harm to the human body.
If the banana skin turns black (or has small black spots) locally, you can eat it safely as long as the internal pulp does not deteriorate
Eating bananas has radiation
Bananas do produce radiation.
The so-called radiation actually comes from the "mineral potassium" contained in bananas. Bananas are a fruit rich in potassium, and a small part of this "potassium" is radioactive "potassium-40"
However, it does not represent a lot. This dose is very small and will not cause harm to human body
The amount of radiation is related to the "dose". Therefore, relying on the "yidududui" dose in bananas will not do any harm to the body. Therefore, bananas can be eaten at ease.
How on earth do bananas keep from turning black
- Basic principle: eat now and buy now
Fresh food is safer and more nutritious; To buy bananas, it is recommended to buy a small amount of bananas at a time. It is best to eat them within two days.
- Room temperature storage is more appropriate
Relevant experiments showed that the best storage temperature of banana was about 13 ℃; Compared with those stored in the refrigerator, bananas stored at room temperature ripen more slowly and do not darken easily.
If possible, bananas can be hung up for storage to enhance ventilation. In this way, ethylene can disappear faster with the wind and delay fruit aging.
- Wrap the root of banana during storage
As ethylene is the basic substance that causes the banana epidermis to darken, more and more ethylene will be released as the banana matures. Controlling the ethylene around the banana can delay its ripening speed.
Most of the ethylene comes from the root and stem of banana. Wrapping the root and stem tightly with fresh-keeping film can prolong the fresh-keeping time of about one week.