SOD (superoxide dismutase) pesticide residue degrading enzyme, preparation method thereof and use method of enzyme

Abstract

The invention discloses an SOD (superoxide dismutase) pesticide residue degrading enzyme, a preparation method thereof and a use method of the enzyme. The SOD pesticide residue degrading enzyme comprises plant SOD, catalase, peroxidase, an organophosphate-degrading enzyme and phospholipase. The SOD pesticide residue degrading enzyme has remarkable effects on removing and degrading pesticide residues, particularly organophosphorus, organic sulfur and pyrethroid pesticide residues caused by agriculturally long-term and massive use of agricultural chemicals such as chemical fertilizers and pesticides.

Description

Technical field: [0001] The invention relates to the technical field of pesticide residue control, in particular to a SOD pesticide residue degrading enzyme, a preparation method and a use method thereof. Background technique: [0002] According to statistics in 2017: the global pesticide market has reached 62.7 billion US dollars, and my country has used pesticides on a large scale for decades. There are more than 2,000 pesticides, but there are only 20 kinds of pests. The annual pesticide consumption in my country is 3.37 million tons, which is divided into 1.3 billion people, that is 5 catties per person. The proportion of vegetable pesticide residues in China exceeds the standard by more than 80%. In 2013, China’s antibiotic consumption was 162,000 tons, accounting for about half of the world’s consumption. The annual chemical fertilizer consumption is nearly 78 million tons. , my country accounts for 8% of the world's arable land, and indeed uses up 30% of the world's che...

AI Technical Summary

Problems solved by technology

[0003] Due to the extensive use of chemical fertilizers and pesticides by farmers, coupled with industrial pollution, serious soil and water pollution

Due to the excessive use of chemical fertilizers, soil compaction and acidification are caused, soil aggregate structure is destroyed, soil beneficial microorganisms are killed, soil heavy metals are seriously exceeded, and soil cultivation layers are polluted by chemical toxins, resulting in the formation of a large number of pesticide residues; pesticides , The extensive use of herbicides has caused serious pesticide residues in agricultural products to exceed the standard. The harm of pesticides has broken the ecological balance, resulting in the extinction of small fish and shrimps, beneficial insects and beneficial microorganisms in rivers and fields. Over time, these pesticide residues are in animals and plants. The formation of residual free radicals, according to the theory of free radicals, "free radicals" can damage the DNA in human cells, resulting in cell disease, it can damage the human reproductive system, nervous system, endocrine system and gastrointestinal digestive system, and can also cause human Decreased immunity, which leads to a large number of diseases, chronic diseases and sub-health states

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