When some self-media on the Internet reported on cherries, they mentioned that cherries contain cyanide. Cyanide has been described in some TV series as a poison that "dies in the mouth".
So, does cherries really contain this cyanide?
Well, there really is.
Cherries are the drupes of the Rosaceae family, and in the nucleus of most of the drupes of the Rosaceae family, they contain a substance called "cyanosides." Not only large cherries, peaches, apricots, plums and other core fruits contain cyanosides, cyanosides themselves are non-toxic, but when the plant cell structure is destroyed, the β-glucosidase in cyanosine-containing plants can hydrolyze cyanosides to produce a substance called "hydrocyanic acid". Hydrocyanic acid is toxic and can cause poisoning when people eat it.
There is no doubt that cherries contain cyanidine.
However, containing cyanidine does not equal containing excess cyanide. In a cherry, the amount of cyanogenin is extremely low, extremely low, very low, and there is no way to describe the low. According to official statistics, 1 kilogram of cherries contains up to 11.5 mg of cyanogenin. The 11.5 mg cyanidine is non-toxic, and to produce toxic hydrocyanic acid, cyanosides must also be hydrolyzed. In the conversion, the conversion of cyanosides to hydrocyanic acid is 6%. 11.5 mg of cyanoside produces 0.69 mg of cyanide.
In this way, 1 kilogram of cherries contains up to 0.69 mg of cyanide.
And an adult to achieve hydrocyanic acid poisoning, at least in a very short period of time, at once, eat more than 29 mg of hydrocyanic acid, converted into cherries, at least 43 pounds of cherries are needed to produce so much hydrocyanic acid.
So the question is, if I eat 43 pounds of cherries a day, will I be poisoned?
Nor will it!
Because cyanosides are contained in the cores of large cherries, not in the pulp, it is not enough to eat only 43 pounds of cherries, but also to chew the cores of large cherries and swallow them into the stomach, so as to ensure that cyanogen glycosides are effectively converted into toxic hydrocyanic acid. The weight of a cherries is calculated at 8g, and the 43 pounds of cherries is about 2600.
If you want to achieve the goal of cherries poisoning, you must eat at least 2600 cherry cores in succession.
In history, the only person who can do this may be Qiu Qianshi of the Song Dynasty.
Suppose, I traveled to the Song Dynasty, studied qiu Qianshi, learned the kung fu of "jujube core nails", and then crossed back, eating 43 pounds of cored cherries a day, would I be poisoned by hydrocyanic acid?
Nor will it! Because before being poisoned by hydrocyanic acid, I would most likely fall into a coma because of "high blood sugar". Cherry contains high fructose, a lot of sugar will make the blood glucose concentration rise in a short period of time, it is likely that the amount of hydrocyanic acid poisoning has not been eaten enough, it will be because the blood sugar is too high directly fainted in place.
Some people say that high sugar content also has a risk of "poisoning"? High sugar content generally has no risk of poisoning, and eating too much sugar will definitely be "poisoned". There is a saying that is very correct, "leaving the dose to talk about toxicity is to play hooligans", if the amount is large, even if it is drinking boiled water, it can also be "water poisoning".
Although the odds of hydrocyanic acid poisoning from too much cherries are lower than the odds of winning the lottery, we still recommend that children do not eat large cherries as meals!
Some parents give seven- or eight-year-olds three or four pounds of big cherries a day. This kind of does not care whether there is cyanide at all, so it is definitely not good to eat.
The first is that the sugar content is too high, and the second is that the fruit cannot be eaten as rice, eating so many large cherries, other things can not be eaten, nutrition must be lacking. The third is that when children eat small stone fruits, they will be easier to swallow the core, more susceptible to the influence of cyanide, although not poisoned, but eating the core affects the intestine.
Therefore, we have always suggested that adults love to eat and eat, as long as you have money, you can eat casually. But it is a basic common sense for children not to eat cherries as rice. Not only cherries, but other fruits with a relatively high sugar content cannot be used as meals by children.
This will develop a bad eating habit.
At present, the market price of Chilean cherries is 30 yuan / kg, a pound of cherries contains 0.69 mg of hydrocyanic acid, so calculated down, 1 g of hydrocyanic acid is more than 40,000 yuan.
Haha, this is much more expensive than gold.