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Composition containing naphthoquinone derivative for controlling harmful algae and method for controlling harmful algae using same

A control method and composition technology, applied in the direction of botany equipment and methods, separation methods, chemical instruments and methods, etc., can solve the problems that the cause of preventing green algae in the four major rivers has not achieved great effectiveness, and achieve the prevention of harmful algae blooms , the effect of high possibility of commercialization

Inactive Publication Date: 2018-09-28
水生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] As an example, the government has invested 199.3 billion won in four major rivers to use river purification facilities, pressurized floating facilities, ecological floating islands, lake water quality survey ships, water purification wetlands, Ecological Protection (Fishway), early sewage treatment facilities (stormfilter, etc.) and other existing green algae control technologies have promoted the green algae prevention business from 1999 to 2005, but the green algae prevention business of the four major rivers has not achieved great effectiveness

Method used

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  • Composition containing naphthoquinone derivative for controlling harmful algae and method for controlling harmful algae using same
  • Composition containing naphthoquinone derivative for controlling harmful algae and method for controlling harmful algae using same
  • Composition containing naphthoquinone derivative for controlling harmful algae and method for controlling harmful algae using same

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Experimental program
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Embodiment approach

[0106] Hereinafter, the present invention will be described in more detail with reference to preferred examples and the like. However, these examples are merely for more concrete illustration of the present invention, and it is obvious to those skilled in the art that the scope of the present invention is not limited thereto.

manufacture example

[0107] Production example: Production of naphthoquinone derivatives of the present invention

[0108] The naphthoquinone derivatives of the present invention are produced by the following method.

[0109] [Chemical formula 6]: 2-(((6-bromo-1H-benzo[d]imidazol-2-yl)amino)methyl)-5,8-dimethoxy-naphthalene-1,4-dione (2-(((6-Bromo-1H-benzo[d]imidazol-2-yl)amino)methyl)-5,8-dimethoxy-naphthalene-1,4-dione)

[0110] Add 2.1 g of (1,4,5,8-tetramethoxynaphthalen-2-yl)methanol ((1,4,5, 8-tetramethoxynaphthalen-2-yl)methanol), 0.4g of 6-bromo-1H-benzo[d]imidazol-2-amine (6-bromo-1H-benzo[d]imidazol-2-amine), 25mg of K 2 CO 3 , 3 mg of [Cp*IrCl 2 ] 2 and 5mL of toluene and mix. Then, the above mixture was heated at 130° C. for 12 hours, and then cooled to ambient temperature. Then, the above mixture was concentrated under vacuum, and purified by flash column chromatography (hexane:EtOAc=4:1 to 1:1) to obtain a compound.

[0111] Yield: 65%

[0112] 1 H NMR (CDCl 3 ,400MHz)d...

Embodiment 1

[0246] Embodiment 1: Measuring the algicidal effect of harmful algae

[0247] The algicidal effect on harmful algae at various inoculation concentrations of the compound of the present invention was determined.

[0248] For this reason, as the treatment area (experimental group), as freshwater harmful algae, have used Microcystis aeruginosa (Microcystis aeruginosa), Anabaena flos-aqua (anabaena flos-aqua) as cyanobacteria; Stephanodiscus hantzschii ( Cyclotella meneginia), Cyclotella meneginia, Aulacoseira, Synedra acus, green algae, Scenedesmus actus as green algae, seawater harmful algae , used Alexandrium tamarens (Tama Alexandrella), Cochlodinium polykrikoides (polycyclic dimple), Heterocapsa triquetra (triquetra), Prorocentrum micans (marine Prorocentrum) as dinoflagellates; needle algae Chattonella marina ( Pseudo-nitzschia pungens (Pseudo-nitzschia pungens) as diatoms. The culture conditions are shown in Table 2 below.

[0249] [Table 2]

[0250]

[0251] In th...

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Abstract

The present invention relates to a composition containing a naphthoquinone derivative for controlling harmful algae and a method for controlling harmful algae using the same. The composition for controlling harmful algae according to the present invention can selectively control only harmful algae that abnormally proliferate in a pond, a reservoir, a lake, a marsh, a stream, a river, or the like,and thus, the composition according to the present invention is very useful in preventing the formation of a large amount of harmful algae in freshwater or saltwater and preventing the contamination of water.

Description

technical field [0001] The present invention relates to a composition for controlling harmful algae comprising a naphthoquinone derivative and a method for controlling harmful algae using the same. Background technique [0002] Eutrophic aquatic ecosystems in temperate regions such as South Korea are based on rich nutrients, creating an environment conducive to the growth of primary producers such as phytoplankton, and HAB (Harmful Algal Blooming) (environmental Ministry 2012). [0003] Harmful Algal Blooms (HAB, Harmful Algal Blooming) cause various problems in the industry depending on their breeding habitat. Harmful algae blooms in lakes, rivers, reservoirs, fish farms, etc. 1) cause the death of aquatic organisms (Duke et al., Weed Sci.50: 138-151, 2002); 2) generate off-flavor substances And reduce drinking water and the meat quality of farmed fish, for example, in the habitat of Oscillatoria perornata, which is a harmful algae, the fish emits an off-flavor (Duke et a...

Claims

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Application Information

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IPC IPC(8): A01N43/78C02F1/40C02F103/00C02F103/08
CPCA01N43/78C02F1/40
Inventor 韩明洙朱宰亨朴钟声
Owner 水生物技术有限公司
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