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Food testing, from the source soil testing!
Release time: 2019-01-08 16:42:58 Click: 4109
Significance of heavy metal food detection
When it comes to food testing, the sugar content of milk tea that has been reported in recent years is just trivial. The real headache is not the high fat and sugar content, but the heavy metal content. As the saying goes, "people take food as their heavens", everyone is also very concerned about food safety and other issues. There are often fake food safety ⎝⎛真人博狗⎞⎠ reports, fake rice, fake eggs, and fake meat floss. These are actually rumors. Contamination of food bacteria, heavy metals, etc. directly harms the human body and is irreversible.
Food testing methods
Food testing includes component analysis, trace element analysis, pesticide residues, mycotoxins analysis, food additives, etc. Food testing methods include spectrophotometry, atomic fluorescence spectrometry, electrochemical methods, atomic absorption spectrometry, gas chromatography, etc. However, these methods are used to detect food, and food has already been manufactured. How do we control harmful elements in food production?
Food heavy metal pollution is harmful. As people's living standards improve with technology, the environment has changed, and many places have suffered from heavy metal pollution in soil.
镉 、钙、铁等。 Food analysis and inspection items mainly include copper, lead, zinc, manganese, cadmium , calcium, iron, etc. in trace elements .
Lead is a chronic poison that is accumulative. Excessive or long-term consumption of foods with excessive lead content can accumulate in the body, affect the brain and nervous system, and especially cause mental retardation and performance disorders in children. The main cause of food failure may be soil pollution of raw materials or the use of raw material production equipment and packaging that exceed the lead content.
Cases of cadmium wheat and cadmium rice continue to occur in this red earth. These heavy metal content foods cause high blood pressure, cause cardiovascular and cerebrovascular diseases; damage bones, liver and kidneys, and cause kidney failure. Many strange diseases are caused by these heavy costs.
Painful illness: Since 1931, a strange disease appeared in the Shentongchuan Valley of Toyama Prefecture, Japan, causing many women to commit suicide. They are impeccable when it comes to economy, family and popularity. Why commit suicide? It is due to the bone pain, which indicates that the pain is severe, and a pain word is not enough to describe it. The disease started with pain in the joints of the waist, hands, and feet after work, and felt brisk after bathing and resting. After a period of time, neuralgia and bone pain became more severe in all parts of the body, and the bones softened and shrank Breathing and coughing have brought intolerable suffering, and thus committed suicide.
"Aches and pains" are caused by cadmium poisoning. Patients have pain in their hands and feet and are prone to fractures throughout the body. People who suffer from this disease always shout "pain! Pain!" Until they die, so they are called "painful disease".
Minamata disease: Minamata disease is a chronic methylmercury poisoning disease first found in Minamata City, southern Japan. Because the pathogenesis was unknown at that time, it occurred in Minamata Bay. Symptoms of Minamata Disease are first found in animals, especially cats, with unstable gait, drooling, sudden seizures, and even lethal death. In 1956, two girls were found to have unstable gait and slurred speech, that is, the cause of leeches was similar to that of cats. Locals called cat chorea. The clinical manifestations of Minamata disease are headache, inattention, forgetfulness, numbness of limbs, uncoordinated movements, muscle atrophy, salivation, Dohan, and vision and hearing impairment.
Soil heavy metal management
Soil heavy metals are so harmful to people. Of course, the government supervision department has also tested the soil and counted the contaminated areas in China, and has made some decisions. However, there is currently no effective method to repair and remediate soil heavy metals. This is the most important The terrible place is that China ’s food production is increasing but the pure land is decreasing and the factory sewage is discharged.
If there is heavy metal soil pollution in a certain place, all suspected contaminated rice will be collected in accordance with the state's unified grain purchase price. After the inspection results are confirmed, the contaminated rice that is indeed polluted will be concentrated and harmlessly treated; the port town and village will notify farmers in the area No edible crops can be cultivated. After the relevant testing and identification, all the original farmland will be transferred from the town and village to plant flowers and seedlings.
Although the production of crops in the soil is controlled in this way, how can farmers survive if they lose the lazy land to survive? Soil governance requires more people to join in.