A strain of Aspergillus oryzae and its application

Abstract

The invention discloses a strain of Aspergillus oryzae, the fungal strain is classified as Aspergillus oryzae, and is now preserved in the General Microorganism Center of China Microbiological Culture Collection Management Committee, and the preservation number is: CGMCC NO: 15680. The cultivation method of the bacterial strain Aspergillus oryzae is as follows: the bacterial strain is inoculated into the fermentation medium, and cultured with shaking at 30±2° C. and a rotational speed of 220 rpm for 4-5 days. The aspergillus oryzae strain screened by the invention can be used in the treatment of soil and water bodies polluted by atrazine. For low-concentration polluted water or soil, compared with physical and chemical remediation methods, the bacterial strain of the present invention can not only effectively and quickly remove atrazine pollution, but also is environmentally friendly, economical and affordable. The bacterial strain has very high application value in the treatment of atrazine-polluted water bodies and soil environments, and the comprehensive treatment of pesticide pollution in industrial sites.

Description

technical field [0001] The invention belongs to the field of biotechnology, and in particular relates to an aspergillus oryzae which absorbs and tolerates atrazine. Background technique [0002] Today, as the world's population continues to grow, people are increasingly dependent on synthetic chemical pesticides. A large amount of chemical pesticides are required to be used in agricultural production every year. Some of these chemicals have an effect, while a large part remains in the environment, resulting in the deterioration of the quality of soil and agricultural products, and at the same time threatening human health. For pesticide pollution, the traditional treatment methods mainly focus on chemical remediation, physical-chemical remediation, and improved agronomic measures. These methods can solve the problem of soil pollution to a certain extent, but they also have high costs and may cause secondary pollution, etc. question. In recent years, the use of biodegradati...

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Problems solved by technology

Studies have shown that atrazine can cause damage to the metamorphosis and morphological development of frogs, and even in surface water where low concentrations of atrazine exist, it can also have harmful effects on the development of amphibians; It will cause disturbance of important metabolic processes in the body; at a certain dose, it may cause genetic damage to the germ cells of mice, and interfere with the normal production and maturation of sperm; atrazine will not only affect human health through the transmission of food chains, Make the liver, kidney, lung, heart and blood vessels of the human body show symptoms of poisoning, and may also cause problems with the human cardiovascular system and difficulties in regeneration and reproduction

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