Oil-degradation oil-and-salt tolerance bacterial strain, and screening method and application thereof

Abstract

The invention relates to an oil-degradation oil-and-salt tolerance bacterial strain which is named as SY-1. The systematic name of the SY-1 is Escherichia coli, the file number is CGMCC (China General Microbiological Culture Collection Center No.7075, the file date is December 31, 2012, the file address is the Micro-organism Study of Chinese Academy of Sciences, No.3, No.1 Beichen west road, Chaoyang district, Beijing city, and the file unit is China General Microbiological Culture Collection Center. The oil-degradation oil-and-salt tolerance bacterial strain is good in oil and salt tolerance, is Gram-negative bacterium shaped in short rhabditiform and with flagellum and no spores and active, is in citrate and glucose ammonium salt positive property and can generate catalase without gelatinase. The bacterial strain is fast in growth, can grow in oil used as unique carbon source, and has the advantages of oil degradation.

Description

technical field [0001] The invention belongs to the field of microbial breeding and ecology, in particular to an oil-resistant and salt-tolerant bacterial strain for degrading petroleum, a screening method and application thereof. Background technique [0002] As the main energy source, petroleum has played a vital role in the development of human society, but it will inevitably pollute the environment during the process of oil extraction, transportation, loading and unloading, processing and use. According to incomplete statistics, there are about 1.0 ×10 10 kg of oil enters the soil or water through various channels, pollutes the groundwater, flows into the ocean, changes the aquatic environment, and threatens the aquatic animals, plants and marine life. With the continuous deterioration of the global environment, the safety of the ecological environment has attracted more and more attention. [0003] The harm of oil to the environment is mainly concentrated in the ocea...

AI Technical Summary

Problems solved by technology

The chemical method is effective and can deal with a large area of ​​oil spill in a short time even in bad weather, but the disadvantage is that the use of dispersants and other chemical agents wastes energy and may cause secondary pollution; the oil condensation performance is low, The production process is complicated, the cost is high, and the price is expensive, so it is difficult to be applied in practice

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