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Food testing, starting from the source soil testing!
Release time: 2019-01-08 16:42:58 Click: 4399
Significance of heavy metal food testing
When it comes to food testing, the sugar content of milk tea that has been reported in recent years is just a trivial matter. The real headache is not high fat and sugar content, but heavy metal content. As the saying goes, "people take food as the sky", everyone is also very concerned about issues such as food safety. Some fake food safety ⎝⎛真人博狗⎞⎠ is often reported, fake rice, fake eggs, fake meat floss, these are just rumors. The 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 detection methods include spectrophotometry, atomic fluorescence spectrometry, electrochemical method, atomic absorption spectrometry, gas chromatography, etc. , But these methods are used to detect food, and food has been manufactured. How do we control harmful elements in food production?
Food heavy metal pollution poses a great hazard. As people's living standards improve with technology, the environment has changed, and many places have experienced heavy soil metal pollution.
镉 、钙、铁等。 Food analysis and inspection items mainly include trace elements in copper, lead, zinc, manganese, cadmium , calcium, iron and so on.
Lead is a chronic poison. It is accumulative. Excessive intake of foods with excessive lead content or long-term consumption will accumulate in the body and affect the brain and nervous system. In particular, it will cause intellectual developmental disorders and abnormal performance in children. The main reason for food non-conformity may be the contamination of raw materials and soil, or the use of raw material production equipment and packaging with excessive lead content caused by migration.
Cases of cadmium wheat and cadmium rice continue to occur in this red earth. These heavy metal foods cause high blood pressure, causing cardiovascular and cerebrovascular diseases; destroying bones, liver and kidney, and causing kidney failure. Many strange diseases are caused by these heavy money.
Painful disease: Since 1931, a strange disease has appeared in the Shentongchuan watershed in Toyama Prefecture, Japan, causing many women to commit suicide. They are impeccable in terms of economy, family, and popularity. Why commit suicide? It is because of suffering from bone pain, which indicates that the pain is severe, and it is not enough to describe it with a pain word. The disease started with pain in the lower back, hands, feet and other joints after working, and felt light after bathing and resting; after a period of time, neuralgia and bone pain were particularly intense in all parts of the body, and the bones softened and atrophy, causing Breathing and coughing all bring unbearable suffering, and thus commit suicide.
The "painful disease" is caused by cadmium poisoning. The patient has pain in the hands and feet, and fractures are easy to occur throughout the body. People with this disease have been shouting "Pain! Pain!" Until they die, so they are called "pain."
Minamata disease: Minamata disease was a chronic methylmercury poisoning first discovered in Minamata City, southern Japan. The disease was caused by an unknown mechanism at that time and occurred in Minamata Bay. The symptoms of Minamata disease were first found in animals, especially cats, with unsteady gait, a lot of salivation, sudden seizures, and even crazy death. In 1956, two girls were found to have unstable gait, unclear speech, etc., that is, the cause of Minamata is similar to the symptoms of cats. Local people call cat chorea. Clinically, Minamata disease generally manifests as headache, inattention, amnesia, limb numbness, slurred movements, uncoordinated movements, muscle atrophy, salivation, multi-han, and visual and hearing impairments.
Soil heavy metal treatment
The heavy metals in the soil are so harmful to people. Of course, the government supervision department has also tested the soil and counted the polluted areas in China. There are some decisions, but there is currently no effective means to repair and remediate the heavy metals in the soil. This is the most In a terrible place, China ’s food production has increased, but pure land has been declining, and factory sewage has been discharged.
If there is heavy metal soil pollution in a certain place, all suspected contaminated rice will be collected in accordance with the national unified grain purchase price. After the inspection results are confirmed, the contaminated rice will be harmlessly treated; the port towns and villages will notify farmers in the area It is forbidden to cultivate edible crops. After the relevant testing and identification, all the original farmland will be transferred to towns and villages for planting flowers and seedlings.
In this way, although the soil is controlled to produce crops, how can farmers survive if they lose the lazy land to survive? Soil management needs more people to join.