Coming soon, a large number of potatoes will be launched
For Cantonese people
This traditional dessert is simply a childhood memory
But
There are risks associated with improper handling of cassava
Recently, some netizens said
After consuming homemade tapioca syrup
Symptoms such as dizziness, nausea, vomiting, and stomach bloating appeared
Experts remind
But untreated or improperly processed fresh cassava
There are risks
Tapioca syrup is popular
Some netizens said that they felt unwell after eating
Recently, "tapioca sugar water" has become popular all over the Internet, and its pale yellow and soft glutinous appearance after boiling looks very appetizing, and many netizens are vying to try it first and teach themselves to boil it.
On a social platform, some netizens posted their experience of suspected poisoning by eating tapioca sugar water. Among them, a netizen in Chengdu said, "I bought cassava online, boiled a pot, and put the remaining bowl in the refrigerator to eat the next day." After eating, I was allergic and went to the hospital for an infusion. ”
Some netizens said that when making tapioca syrup, the heart in the middle of the cassava was not removed, and after eating, there were stomach bloating, dizziness, nausea and other discomforts.
▲Netizens said that they felt unwell after eating tapioca sugar water
It is reported that October to December is the season for cassava to be marketed in large quantities. Searching for "cassava" on a shopping platform, the monthly sales volume of the hot-selling stores is more than 10,000 orders, and the sales volume is mostly in southern cities. Will eating cassava be poisoned? The customer service of the shopping platform said, "If it is not cooked, it will be poisoned." If you eat a large amount, there is also a danger. ”
In 2019, there was a food poisoning incident caused by eating cassava in Heng County, Nanning, Guangxi, due to the consumption of improperly processed cassava, which finally led to the poisoning of 3 people, including 1 child who unfortunately died of poisoning.
Expert: Cassava cannot be eaten raw
Be sure to choose edibles
According to Shen Zhangyou, a post scientist in the national cassava industry technology system, cassava is divided into three types: edible, feed and industrial. Among them, the edible cassava varieties are "Huanan No. 9" (Huangxin Cassava), "Guire No. 10" (white cassava) and "Gui Cassava No. 11" (white cassava) that have been popularized nationwide.
Will eating cassava cause poisoning? Shen Zhangyou said that cassava is not that it cannot be eaten, but that it cannot be eaten raw. Fresh cassava contains a class of endotoxins called cyanogenic glycosides, which are degraded to produce toxic hydrocyanic acid. "Fresh cassava has a high level of hydrocyanic acid in the outer skin, so eating raw cassava is at risk of poisoning. ”
Hydrocyanic acid is not only found in cassava, but also in sorghum, corn, flaxseed, ginkgo seeds and bamboo shoots that Sichuan people love to eat, and many crops are also produced in seedlings or vines.
Shen Zhangyou also said, "The content of cyanogenic glycosides (hydrocyanic acid) in different varieties of cassava varies greatly, and according to the standards of the Codex Alimentarius Commission (CAC), cassava that has been simply processed such as peeling and soaking, and the hydrocyanic acid content is less than 50mg/kg, is classified as edible cassava." Generally speaking, it is safe for humans to consume less than 50 mg of hydrocyanic acid. ”
Regarding a series of adverse reactions after netizens consumed cassava sugar water, Shen Zhangyou believes that it is not necessarily caused by eating cassava, "There are many reasons for poisoning, including hygiene, cooking methods, accidentally eating raw, or other sources of infection during transportation." Cassava poisoning, which is usually acute and sudden. If you have mild symptoms such as dizziness and nausea, you can drink plenty of water to relieve it, but if the condition is more serious, you must seek medical attention in time. ”
Shen Zhangyou suggested that edible cassava varieties must be selected, and before eating, the cassava should be peeled and washed, and then the subsequent steaming, boiling, stir-frying and other cooking should be carried out.
Alarm!
These types of food need to be handled properly
Except for cassava
These types of food should also not be eaten raw
▼▼▼
01. Oxalic acid-rich vegetables
Including amaranth, purslane, spinach, fresh bamboo shoots, coconut white, bitter gourd and other bitter vegetables.
Too much oxalic acid will affect the body's absorption of nutrients such as calcium and iron, and even increase the risk of stones and cause damage to the kidneys. Oxalic acid dissolves in water, and most of the oxalic acid can be removed during the blanching process.
02. Vegetables high in nitrite
Including most of the leafy vegetables such as celery, fennel, artemisia, toon, etc.
It is best to blanch for 1 minute before eating, in addition, this kind of vegetables should not be stored for too long, the longer you put it, the more nitrite, remember to eat fresh.
03. "Eat raw and poisonous" fruits and vegetables
Eating immature or undercooked beans can cause poisoning, because immature beans contain two plant toxins, hemagglutinin and saponin, which can affect the function of the small intestine and strongly irritate the mucosa of the gastrointestinal tract. Blanch the beans before cooking, blanch the raw beans in boiling water for 5-10 minutes before cooking, which can completely destroy the toxins in the beans.
Raw ginkgo biloba (ginkgo seeds) contains hydrocyanic acid toxin, and fresh daylily contains colchicine, so be sure to cook them.
04. Sprout poisonous vegetables
After the potatoes sprout, they will produce solanine that paralyzes the nerves, and it is not recommended to eat it raw or cooked!
In addition, these 8 kinds
Common plants are poisonous
When you see them, remember the "three no's"
Do not pick, do not buy, do not eat
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编辑 | 张芷莹 责编 | 张秀丽
Integrated Sources | Chengdu Business Daily, People's Daily Science Popularization, Red Star News, and Guangdong Health Online previously reported
Produced by the Guangdong Health Online all-media team