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Application of compound 3,3',5,5'-tetrabromo-2,2'-biphenyldiol in inhibiting and removing algae

A biquinol and compound technology is applied in the new application field of the compound, which can solve the problems of hypoxia death, pollution of the marine environment, destruction of the normal marine ecosystem, etc., and achieve a good inhibitory effect.

Active Publication Date: 2020-09-01
QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. A large number of red tide organisms gather in the gills of fish, causing the fish to suffocate and die due to lack of oxygen
[0004] 2. After the red tide organisms die, the algae consume a large amount of dissolved oxygen in the water during the decomposition process, resulting in the death of fish and other marine organisms due to lack of oxygen. At the same time, a large amount of harmful gases and toxins are released, which seriously pollutes the marine environment and makes the ocean The normal ecosystem of the
[0005] 3. Fish devour large amounts of toxic algae
[0006] 4. Some algae can secrete toxic substances to pollute the water body and cause fish to die
"Using bacteria to control algae" is a red tide control method with important prospects. However, there is still a large gap in the research on algae-inhibiting substances

Method used

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  • Application of compound 3,3',5,5'-tetrabromo-2,2'-biphenyldiol in inhibiting and removing algae
  • Application of compound 3,3',5,5'-tetrabromo-2,2'-biphenyldiol in inhibiting and removing algae
  • Application of compound 3,3',5,5'-tetrabromo-2,2'-biphenyldiol in inhibiting and removing algae

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1 Calculation method of anti-algae activity

[0043] 1. Tested algal species and culture conditions

[0044] Synechococcus sp. PCC7002 was selected as the tested algae species, and cultured at a temperature of 26°C, a light intensity of 3000lx, and a light-dark cycle of 12h:12h. After being cultivated to the exponential phase, it was then divided into 50mL triangular flasks, and each bottle was filled with 20mL of algae. liquid.

[0045] 2. Calculation of algae inhibition rate

[0046] Take 1 mL of the component to be tested at 10 μg / mL and add it to the above-mentioned Synechococcus PCC7002 algae liquid, culture for 5 days, and then count under a fluorescence microscope.

[0047] The algae inhibition rate is calculated according to the following formula

[0048] Algae inhibition rate (Algicidal rate) = (N C -N T ) / N C ×100%

[0049] N C Indicates the number of viable cells in the control group, N T Indicates the number of viable cells in the experim...

Embodiment 2

[0051] The scope of inhibiting algae of this compound of embodiment 2

[0052]Selection of Thalassiosira pseudodwarf, Chaetoceros mourii, Prorocentrum microphylla, Angiosperm forta, Nannochloropsis, Prochlorococcus, Dunaliella salina, Phaeodactylum tricornutum, Chlorella, subcardiac The algicidal spectrum experiment of 3,3',5,5'-tetrabromo-2,2'-biphenyldiol was carried out by Pyrenella spp. The culture conditions are: temperature 20°C, light intensity 3000lx, light-dark cycle 12h:12h. Take 10 μg / mL of 3,3',5,5'-tetrabromo-2,2'-biphenyldiol and add it to the above-mentioned 11 algae liquids at a ratio of 5%, and inhibit algae according to the method in Example 1. Rate calculation formula to calculate algae inhibition rate.

[0053] The experimental results showed that 3,3',5,5'-tetrabromo-2,2'-biphenyldiol was effective against Thalassiosira pseudodwarf, Chaetoceros mourii, Prorocentrum minutiae, Amphidinium forta, Coccus, Prochlorococcus, and Dunaliella salina showed strong...

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Abstract

The invention discloses an application of a compound 3,3',5,5'-tetrabromo-2,2'-biphenol in the aspect of algal inhibition. Algae removal spectrum test proves that the compound has excellent inhibitioneffect on eleven algae comprising thalassiosira pseudonana, chaetoceros mulleri, prorocentrum minimum, amphidinium carterae, nannochloropsis oculata, prochlorococcus, dunaliella salina, phaeodactylumtricornutum, chlorella vulgaris, tetraselmis subcordiformis, porphyridium cruentum, etc. The compound has great significance on treatment of red tide, algal bloom and the like natural hazard and canprevent eutrophication of water body.

Description

technical field [0001] The present invention relates to a new field of application of the compound, in particular to the application of the compound 3,3',5,5'-tetrabromo-2,2'-biphenol in inhibiting and removing algae. Background technique [0002] A "red tide", also known as a "red ghost", is an anomaly in marine ecosystems. With the increasing industrialization of human society, a large amount of waste water containing various nitrogen-containing organic substances is discharged into seawater, which promotes eutrophication of seawater and promotes the proliferation of red tide algae. Under the action of various influencing factors, the red tide algae in the seaweed family explodes and proliferates under specific environmental conditions, resulting in red tide. As a harmful natural phenomenon, the harm caused by red tide is also very huge: [0003] 1. A large number of red tide organisms gather in the gills of fish, causing the fish to suffocate and die due to lack of oxyg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N31/08A01P13/00C02F1/50
CPCA01N31/08C02F1/50C02F2103/20C02F2303/04
Inventor 张永雨解瑞泽李德海孙春晓
Owner QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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