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Compound algistat as well as preparation method and application thereof

A compound algicide and algicide technology, applied in the direction of botany equipment and methods, applications, herbicides and algicides, etc., can solve the problem of non-target organism death, affecting the health of aquatic ecosystems, chemical algicide biological Low selectivity and other issues, to achieve the effect of improving the efficiency of algae inhibition

Active Publication Date: 2017-12-26
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, chemical algaecides have low bioselectivity, and may be absorbed or ingested by other aquatic plants and animals while removing algae, resulting in the death of non-target organisms and affecting the health of aquatic ecosystems

Method used

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  • Compound algistat as well as preparation method and application thereof
  • Compound algistat as well as preparation method and application thereof
  • Compound algistat as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A compound algicide comprises the following components in parts by weight: 50 parts of berberine, 25 parts of fangchinoline and 8 parts of sanguinarine hydrate.

[0033] The preparation method of compound algastatic agent, specifically:

[0034] (1) berberine, fangchinoline, and sanguinarine compound dimethyl sulfoxide solution are configured in a mass ratio of 50:25:8, and then equal volumes are mixed to form a compound algastatic agent 50mL;

[0035] (2) Weigh 10g of gelatin and dissolve it in 50mL of distilled water, add an appropriate amount of acetic acid-sodium acetate buffer solution with a pH value of 3.6 and a concentration of 0.2mol / L, adjust the pH value of the solution to 6, filter out insoluble impurities, and use the filtrate as the reaction solution water box;

[0036] (3) Measure 150mL of liquid paraffin as the oil phase of the reaction, and add 5ml of emulsifier Span.80;

[0037] (4) After the emulsifier is fully dispersed in the liquid paraffin, cont...

Embodiment 2

[0040] A compound algicide comprises the following components in parts by weight: 40 parts of berberine, 20 parts of fangchinoline and 10 parts of sanguinarine hydrate.

[0041] The preparation method of compound algastatic agent, specifically:

[0042] (1) berberine, fangchinoline, and sanguinarine compound dimethyl sulfoxide solution are configured into 40:20:10 by mass ratio, and then equal volumes are mixed into 50 mL of compound algastatic agent;

[0043] (2) Weigh 11.25g gelatin and dissolve it in 50mL distilled water, add an appropriate amount of acetic acid-sodium acetate buffer solution with a pH value of 3.6 and a concentration of 0.2mol / L, adjust the pH value of the solution to 4.5, filter out insoluble impurities, and use the filtrate as a reaction the water phase;

[0044] (3) Measure 120mL of liquid paraffin as the oil phase of the reaction, and add 3.5ml of emulsifier Span.80;

[0045] (4) After the emulsifier is fully dispersed in the liquid paraffin, control...

Embodiment 3

[0048] A compound algicide comprises the following components in parts by weight: 30 parts of berberine, 20 parts of fangchinoline and 12 parts of sanguinarine hydrate.

[0049] The preparation method of compound algastatic agent, specifically:

[0050] (1) Be configured into berberine, fangchinoline, sanguinarine compound dimethyl sulfoxide solution in a mass ratio of 30:20:12, and then mix in equal volumes to form 50 mL of compound algastatic agent;

[0051] (2) Weigh 10.5g gelatin and dissolve it in 50mL distilled water, add an appropriate amount of acetic acid-sodium acetate buffer solution with a pH value of 3.6 and a concentration of 0.2mol / L, adjust the pH value of the solution to 5.5, filter out insoluble impurities, and use the filtrate as the aqueous phase of the reaction;

[0052] (3) Measure 200mL of liquid paraffin as the oil phase of the reaction, and add 5ml of emulsifier Span.80;

[0053] (4) After the emulsifier is fully dispersed in the liquid paraffin, con...

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Abstract

The invention discloses a compound algistat which is prepared from berberine, fangchinoline and sanguinarine hydrate. The invention also discloses a preparation method and application of the compound algistat. The compound algistat is an environment-friendly algistat, through the combination and advantage complementary of multiple typical alkaloid compounds, the multiple algae causing algae blooms can be effectively suppressed at the same time, thereby greatly improving the algicidal efficiency. The compound algistat provided by the invention has an effective inhibition rate of 80% to 92% or more within 96h on three kinds of green algae such as microcystis aeruginosa, chlorella pyrenoidosa and scenedesmusobliqnus.

Description

technical field [0001] The invention belongs to the field of water body pollution control, and in particular relates to a compound algastatic agent and its preparation method and application. Background technique [0002] Alkaloids are a class of nitrogen-containing basic organic compounds that widely exist in organisms such as plants, animals, and microorganisms, and are one of the most important natural products. Since most alkaloids have good physiological activity, it has been reported that such compounds have good algae inhibitory effect, but a single alkaloid compound generally has a significant inhibitory effect on a type of algae and is highly targeted. There are many types of algae in water blooms, so the actual application value of a single algastatic agent is not high. [0003] In the prior art, methods for controlling algal blooms in water bodies mainly include physical methods, chemical methods and biological methods, among which chemical methods are the most c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01P13/00
CPCA01N43/90
Inventor 陆光华杨皓涵江润仁周冉冉沈杰
Owner HOHAI UNIV
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