According to a recent news, a 1-year-old baby in Chongqing drank half a bowl of freshly squeezed apple juice. As a result, he soon started vomiting. The parents rushed to take the child to the hospital. The doctor said that it may be caused by cyanide poisoning in the apple core. Why do apples that have been considered "healthy fruits" actually contain "toxic cyanide" and can cause poisoning?
When it comes to cyanide, many people think of celebrities and spyware hidden in their teeth for use in suicide cyanide capsules. Actually, cyanide is on our side, not so mysterious. The seeds of many Rosaceae plants contain cyanogenic glycosides such as peach, cherry, sand, apricot, pear, plum, and wolfberry. The apple is also a member of the Rosaceae. Therefore, apple seeds also contain cyanogenic glycosides. Of course, these fruits have fruit in their flesh. Contains no cyanide.
At present, there are about 50 kinds of cyanogenic glucosides that have been found in the world. The most famous one is amygdalin. The content of bitter almonds is about 2-4%. In the news, it is incorrect to say that the core contains hydrogen cyanide. Actually, the cyanogenic glucoside itself is not toxic, but it can hydrolyze highly toxic hydrocyanic acid (HCN) under the action of biological enzymes. The poisoning of animals, "The Ruan Biography" An Anxie finally suffered from bitter almond suicide because hydrogen cyanide was hydrolyzed by cyanide.
It seems that many people know that bitter almonds are poisonous, but the cyanide poisoning caused by apple seeds in the news has hardly been heard. In fact, the cyanogenic content of bitter almonds in the Rosaceae plant is relatively high, and when converted into hydrocyanic acid, it can contain several milligrams per gram, while the cyanogenic glycosides in the seeds of other Rosaceae fruits are much lower, such as per gram of apple. The cyanogenic glycosides in the seeds are only a few hundred micrograms after conversion to hydrocyanic acid, which is a few tenths of that of bitter almonds. In addition, people generally do not intend to eat apple seeds, so the situation of poisoning has never been seen before.
The toxic dose of hydrocyanic acid causes about 2 milligrams per kilogram of body weight (approximately 10 kilograms per year for a one-year-old infant). In the news, the apple juice was consumed by an infant with one apple but only a few grams of an apple was converted. Hydrocyanic acid is only a few milligrams at most. In addition, apple seeds are mainly left in the residue after juicing. Therefore, even cyanogenic glucosides in apple juice are rare, and the cyanogenic glycosides taken in may not be completely converted to release hydrocyanic acid.
Although the baby's body is relatively fragile and sensitive, the symptoms reported by the media show that the child recovered quickly after spitting out juice. I think the greater possibility is the discomfort caused by gastrointestinal irritation, rather than cyanogen directly leading to baby poisoning. . What's more, the reason for the infant's vomiting is more than it can be. If you drink too much, you can also vomit it. In addition, the news itself is also suspected of being "posed" (I will speak at the end).
In addition to Rosaceae fruits, common cyanogenic foods include fresh bamboo shoots, cassava, ginkgo nuts (ginkgo), and some beans (such as lima beans). The seedlings or vines of many crops such as sorghum, corn, potatoes, and squash have cyanogenic glycosides, which often leads to poisoning of animals that eat food. So cyanide is not really a strange thing, but because of limited content or not much food, people are not particularly concerned.
Because cyanogenic glycosides are unstable to heat, thorough heating is the most effective way to remove cyanogenic glycosides. Some foreign food safety agencies also advise the public not to eat these cyanodine-containing foods. In addition, cyanogenic glycosides can be metabolized and cleared in vivo, and there is no accumulation. The poisoning will immediately be poisoned, and no poisoning will not have to worry about “long-term and large-scale†poisoning. For the consumer, the fruit's core should not be eaten, and if it needs juice, it should also go first. As long as it is not deliberately chewing seeds in fruit nucleus, the possibility of cyanogenic acid poisoning is almost nonexistent.
There were rumors before that the fried beans couldn't cover the lid because there was cyanide in it and it was poisoned if it was covered with a lid. First beans may contain very small amounts of cyanogenic glycosides, but this amount is not inherently at risk. Second, hydrocyanic acid hydrolyzed by cyanide is easily volatilized and easily destroyed by heating, so capping it is beneficial to “detoxificationâ€. Third, the main cause of bean poisoning is the saponin and lectin, which can be destroyed as long as cooked and cooked.
In addition, parents who need to tell the children in the news to take the trouble to drink juice to children is a mistake. There are still many beneficial nutrients in the fruit residue after the juice, such as dietary fiber, vitamins, etc., according to the different fruits, should be taken directly to the children by scraping mud, slicing, peeling the pulp and other means. It is also wrong for some parents to drink fruit juice as water and drink it to their children. They should help children develop the habit of drinking white water when they are thirsty.
Finally, I talked about this newspaper's "shooting" suspect. Randomly searched on the Internet, in 2010 when there was "Apple nuclear toxic" news reports. Interestingly, this news did not happen in recent days. It was already reported in the Chongqing Times on July 24, when the child was 11 months old and the Chongqing Evening News recently reported that the child became 1 year old. 1 month. From July to September, when the children grow up, the news also keeps pace with the times. Can it be a bad idea for a girl to become a boy?
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