There is an old saying in the southern countryside"Tired of scraping cassava",It means to describe something more annoying than scraping cassava. In the 60s of the last century, cassava was an indispensable food for people to fill their stomachs and hunger, and the whole family had to go out to scrape cassava together. But why is cassava, which was once a staple food, not grown by so many people?Is cassava really poisonous?
Cassava harvesting. Cassava is native to Brazil, and is mainly cultivated in southern regions such as Fujian, Liangguang, and Hainan in China. The leaves of cassava are thin and soft, and its tuber bark is brown with markings on the surface. The cassava tuber is cylindrical and fat, and it is this part that is mainly consumed.
A cassava can grow up to 150,300 grams, and individual individuals can grow to tens of pounds. The tapioca-root is cut white on the inside and is 24% to 32% starch, and it also contains protein and vitamins. Eating cassava can clear away heat and detoxify, prevent constipation, and is a food loved by many health people.
According to the data, 65% of the world's cassava is used for food, and cassava is also known as the sixth largest food crop in the world, and there are still many people in Africa who use it as a staple food. The reason why cassava can be on the dinner table of people at home and abroad is related to its own characteristics.
Around the 60s of the last century, the level of productivity was not high, and disasters such as floods and locust plagues often broke out, so food production was very low, and sometimes famine broke out. People can't eat rice and wheat every meal, but they can't starve to death if they don't have enough to eatSo cassava like thisExtremely satietyfood, saving many families who are trapped in hunger.
Growing cassava. Cassava does not pick the soil and is easy to grow. It is highly adaptable and can survive in arid, poor soils, whether sandy or clay. Cassava does not have high requirements for the growing environment, and can be grown in plains and mountains. As a result, planting cassava can save a lot of money on arable land maintenance.
Cassava is easy to survive and has large tuber roots.
Cassava yields are highIt can provide people with sufficient food reserves. According to statistics, about 2 tons of cassava can be produced per mu, and it can even reach 6 tons in the south where the conditions are suitable. Moreover, 1 cassava can grow 5 or 7 tubers, which can be eaten by one person for two days without a problem. It can be said that the high yield of cassava is the main reason why people choose it.
Cassava also has a high survival rate and does not require special care. It is relatively resistant to diseases, and most crops are inevitably pested, and cassava is rarely encountered. Even if there is an outbreak of insect infestation, there is no need to panic, after all, the vitality of cassava is very tenacious, and even if one plant is gone, a large patch will still grow. When it comes to the cassava harvest season, adults are responsible for digging cassava, and children are responsible for scraping.
From ancient times to the present, people who have died of poisoning from eating cassava raw have died every year. Cassava is indeed poisonousIn particular, fresh cassava tubers are the most toxic. This is because there is a kind of cassava in the rhizomes and leaves calledThe component of linseed bitterin, if this component is combined with human stomach acid, hydrolyzes to produce hydrocyanic acid.
Although this acid is a weak acid, excessive intake can cause harm to the human body. It is mainly manifested as damage to the digestive system, nervous system and respiratory system of the human body, causing diarrhea, headache and other symptoms, and even intracellular suffocation. Studies have shown that ingestion of just 150,300 grams of raw cassava can cause poisoning and even death.
Cassava is divided into sweet cassava andBitter cassavaOf the two, the toxicity of sweet cassava is relatively weak, but it must also be peeled, washed, and cooked before eating, and bitter cassava is even more troublesome, and the toxin must be carefully removed before eating. It should be noted that some tapioca soup is also not to be consumed.
It is possible to be poisoned by eating cassava raw or eating tapioca skin, and we must make sure that the cassava is peeled and soaked and fully steamed and cooked before eating it. The incubation period of cassava poison is 2 to 12 hours, and if poisoning, vomiting must be induced first, and then sent to the hospital for first aid. Children and the elderly with poor physical fitness are not suitable for eating cassava.
Tapioca taro balls. **Low yields are less
Cassava has a very high yield, and a small planting area can harvest a lot, which can easily saturate the market. Therefore, the ** of cassava is very low, and in some places you can even buy a pound for a few cents, which is too cheap compared to other crops. If the input and output are not proportional, there will be no one to plant.
Bad taste
The taste of cassava is actually relatively bland, and the taste is relatively rough. In the old famine years, people lacked food and clothing, and they were not picky about food, but only cared about satiety. But now that people's living standards have improved, and the choice of food has become rich and diverse, cassava, which is mainly used as a staple food, has naturally been eliminated by fine rice and noodles.
Dealing with trouble
Cassava is highly toxic and requires complex processing before eating. First of all, the skin must be peeled, then soaked for three to five days, and cooked thoroughly, which does not guarantee that there will be no toxin residue. There are so many green, safe, ready-to-eat foods on the market that people are rarely willing to risk their lives to eat cassava.
There are few ways to use it
Due to the toxicity of cassava itself, it is not very exploitable. In addition to food, starch production, and alcohol production, there is no other high-income use, and it will be made into feed to feed poultry in rural areas. But in general, the developable value is not very large.
At present, the main stage of cassava isThe level of economy is relatively lowBecause of the rapid development of China's society, the status of cassava has gradually been replaced by other foods. Although it has gradually withdrawn from the staple food stage, many people still retain the Xi of eating cassava in the past.
Cassava has saved countless families around the world as a life-saving food, and it is an indispensable staple food in the era when people have eaten the last meal and the next meal. However, you must be cautious when eating cassava, and seek medical attention in time if you accidentally poison it. Do you still eat cassava now?What do you think cassava tastes like?Welcome to leave a message to discuss.