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Microbial magnetic chitosan nano material, preparation method thereof and application thereof in microcystic toxin degradation

A technology of chitosan nanometer and microcystin, which is applied in the field of environmental governance and microcystin degradation, can solve the problems of poor liquid fluidity, inactivation of enzymes or cells, difficult continuous operation, etc., and the application process is easy Control, high degradation efficiency, retention and enrichment effect

Active Publication Date: 2019-03-29
CENT SOUTH UNIV +1
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Problems solved by technology

However, a single chitosan molecule is used as a carrier to immobilize microorganisms for the removal of pollutants in the environment. It has poor liquid fluidity, is difficult to carry out long-term continuous operation, and is not easy to recycle. At the same time, the aldehyde used in conjunction with chitosan may cause enzymes or The disadvantages of cell inactivation, or chitosan being degraded by enzymes limit its application in many fields

Method used

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  • Microbial magnetic chitosan nano material, preparation method thereof and application thereof in microcystic toxin degradation
  • Microbial magnetic chitosan nano material, preparation method thereof and application thereof in microcystic toxin degradation
  • Microbial magnetic chitosan nano material, preparation method thereof and application thereof in microcystic toxin degradation

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Embodiment

[0038] A microbial magnetic chitosan nanomaterial of the present invention comprises a magnetic chitosan nanomaterial and a sphingosine box bacterium YF1 (Sphingopyxis sp.YF1) thalline immobilized on the magnetic chitosan nanomaterial; magnetic Chitosan nanomaterials are loaded with magnetic nano-Fe 3 o 4 The chitosan of the particles; Sphingopyxis sp.YF1 (Sphingopyxis sp.YF1) was preserved in the General Microbiology Center of the China Microbiological Culture Collection Management Committee, the preservation number is CGMCC No: 16341, and the preservation time is August 27, 2018. The address of the unit is located at the Institute of Microbiology, Chinese Academy of Sciences, No. 3, Yard 1, Beichen West Road, Chaoyang District, Beijing.

[0039] Sphingopyxis sp.YF1 (Sphingopyxis sp.YF1) is a microcystin-degrading bacterium native to Taihu Lake that can efficiently degrade microcystin MC-LR independently screened by the inventor, and was identified as Sphingomonas belongs t...

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Abstract

The present invention discloses a microbial magnetic chitosan nano material. The microbial magnetic chitosan nano material comprises a magnetic chitosan nano material and a Sphingopyxis sp. YF1 body immobilized and loaded on the magnetic chitosan nano material; the magnetic chitosan nano material is chitosan loaded with magnetic nano-Fe3O4 particles; and the Sphingopyxis sp. YF1 is preserved in the General Microbiology Center of China Microbiological Culture Collection Management Committee and has a preservation number of CGMCC No:16341. The present invention also discloses a preparation method and an application of the microbial magnetic chitosan nano material. The magnetic chitosan nano material is combined with the Sphingopyxis sp. YF1, a degradation effect is further improved, and after combining with the magnetic chitosan nano material, the bacterium body is not easily lost, good in the degradation effect and high in efficiency, and can also be recycled and reused.

Description

technical field [0001] The invention belongs to the field of environmental management, and in particular relates to a microbial magnetic chitosan nano material, a preparation method thereof and an application thereof in the field of microcystin degradation. Background technique [0002] The rapid development of social economy and the continuous acceleration of social industrialization process, along with the increasingly serious environmental pollution, have led to a large amount of enrichment of nutrients such as nitrogen and phosphorus in waters, resulting in increasingly serious eutrophication in global waters, resulting in abnormal algae reproduction and occurrence of One of the main hazards of algae blooms is the production of microcystins. Microcystin (MC) is a kind of microcystin with the highest frequency, the largest yield and the most serious damage. Microcystins have strong liver, kidney and other organ toxicity and cancer-promoting properties. They are considere...

Claims

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Application Information

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IPC IPC(8): C12N11/14C12N11/10H01F1/34C02F3/34C12R1/01
CPCC02F3/34C12N11/10C12N11/14H01F1/344
Inventor 杨飞丁萍伍翩郭健张宪贺楚宁李秦晋秦世庆
Owner CENT SOUTH UNIV
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