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Application of artemisinin as algae inhibiting agents

An algae inhibitor, artemisinin technology, applied in the application, herbicides, algicides, biocides and other directions, can solve the problems of high separation cost, high difficulty, limited extraction of allelochemicals, etc., to achieve a wide range of applications, Good environmental compatibility

Inactive Publication Date: 2012-01-18
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the allelochemicals that inhibit algae in water bodies are extracted from aquatic plants. However, aquatic plants are limited by environmental conditions and are not easy to plant and harvest on a large scale, which limits the extraction of allelochemicals.
In addition, the extraction of allelochemicals from aquatic plants has the disadvantages of high separation cost, difficulty, and difficulty in practical use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Artemisinin was used to conduct acute toxicity experiments on aseptically cultured Microcystis aeruginosa, setting several concentration gradients, setting blanks and two parallel groups, observing once every 24 hours, and continuously observing for 5 days. The results showed that when the concentration of artemisinin reached above 16mg / L, its 96h effective inhibition rate against Microcystis aeruginosa reached above 90%.

[0015]

Embodiment 2

[0017] Artemisinin was used to carry out acute toxicity experiments on Scenedesmus obliquus cultured in aseptic culture. Several concentration gradients were set, blanks and two groups were set up in parallel, and observations were made every 24 hours for 5 consecutive days. The results showed that when the concentration of artemisinin reached above 2mg / L, its 96h effective inhibition rate against Scenedesmus obliquus reached above 95%.

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PUM

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Abstract

The invention relates to an application of artemisinin as algae inhibiting agents. The algae is microcystis aeruginosa or scendesmus obliquus. The artemisinin is extracted from artemisia annua of terrestrial plant, is a degradable natural product with good environmental compatibility and lower toxicity on higher animals and has a wide application range as the algae inhibiting agents.

Description

technical field [0001] The invention belongs to the field of water body pollution control, in particular to the application of traditional antimalarial drug artemisinin as an algae inhibitor, which provides a new application field for artemisinin. [0002] Background technique [0003] Artemisinin is an effective monomer component (sesquiterpene lactone peroxide) extracted from the traditional Chinese medicine Artemisia annua, which has excellent antimalarial effect and has been recommended by the World Health Organization as a new antimalarial drug. At present, the main application field of artemisinin is still antimalarial drugs. There are many studies on artemisinin at home and abroad. In addition to antimalarial drugs, its research scope involves antifungal, antibacterial, antitumor, anticancer, antischistosomiasis and other fields. [0004] At present, the methods for controlling algal blooms in water bodies mainly include physical, chemical and biological methods, am...

Claims

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Application Information

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IPC IPC(8): A01N43/90A01P13/00
Inventor 倪利晓郝向阳陈世金任高翔于东盛李勇朱亮
Owner HOHAI UNIV
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