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Application of benzoheterocycle alkaloids in preparation of marine organism stain preventing coatings

A marine biofouling and alkaloid technology, applied in antifouling/underwater coatings, biocide-containing paints, coatings, etc., can solve problems such as marine biofouling, impact, and hinder the exploration and utilization of marine resources , to achieve the effect of remarkable effect, remarkable anti-adhesion activity and good anti-marine biofouling activity

Active Publication Date: 2014-03-19
SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Marine fouling organisms attach, grow and form colonies on the surface of various objects such as hulls, water pipes, fishing tanks, and oil wells, causing marine biofouling, which seriously affects and hinders people's exploration and utilization of marine resources

Method used

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  • Application of benzoheterocycle alkaloids in preparation of marine organism stain preventing coatings
  • Application of benzoheterocycle alkaloids in preparation of marine organism stain preventing coatings
  • Application of benzoheterocycle alkaloids in preparation of marine organism stain preventing coatings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: Anti-Marine Fouling Organism Brussel larvae Activity Test of Benzoalkaloid Compounds Represented by Formulas (1)-(5)

[0018] The activity test model adopts the adhesion inhibition test of Bugula neritina larvae, one of the most commonly used marine fouling biological models in the laboratory.

[0019] The collected mature B. multilocularis was placed in seawater filtered by a 0.22 μm filter membrane, stimulated by light, and the larvae produced by the mature B. multilocularis by light stimulation were collected. Larvae were placed in a watch glass containing seawater filtered through a 0.22 μm filter membrane. The activity test was done with the larvae produced by Bryosa larvae by light. Anti-larval settling activity of compounds was determined using 24-well polystyrene plates. The compound brevianamide F (Formula 1) was dissolved in DMSO and diluted with sterile filtered seawater to obtain solutions of different concentrations (1.65-50 μg / mL) as the test ...

Embodiment 2

[0022] Example 2: Field sea siding activity test of marine alkaloid compounds represented by combined formulas (1)-(5)

[0023]The field sea hanging board test adopts the traditional anti-fouling biological field sea hanging board test method. Dissolve 0.4g of the alkaloid compound mixture (molar ratio 1:1:1:1:1) containing formula (1)-(5) completely in 1mL of methanol, and then fully dissolve it with 10mL of resin containing 45%polyurethane After mixing, spread it on a dry PVC (10×10×0.3cm) board, hang it in the scallop culture area of ​​Daya Bay, Shenzhen (114°32'59 east longitude, 22°40'37 north latitude) after air drying, and serve as the treatment group. Three parallels were set up for each treatment. Take 1ml of methanol and 10mL of resin containing 45%polyurethane and mix it and paint on the plate as a control. The hanging boards were taken out at the second and fourth month respectively, the types of fouling organisms were checked and the area percentage of the entir...

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Abstract

The invention discloses an application of benzoheterocycle alkaloids in preparation of marine organism stain preventing coatings. The mixture of the marine alkaloids brevianamide F, notoamide C, ciccumdatin F, Circumdatin L and quinolactacins C1 and C2 has the activity of preventing marine organism stain and can be used for preparing marine organism stain preventing coatings. If the alkaloids are independently or combinedly permeated or diffused to film forming natural resin, a polyethylene ethyl acetate copolymer and other polymers such as hydrolysable, soluble or insoluble resin to prepare the stain preventing coatings which can release sufficient effective components to the surface to prevent stain. The compounds are natural active components which are insoluble in water and extremely soluble in low-polarity solvents such as chloroform and ethyl acetate, so that the alkaloids have good lipophilicity, can be independently or combinedly applied to preparation of marine organism stain preventing coatings, and have a good application prospect.

Description

Technical field: [0001] The invention belongs to the field of biotechnology, and in particular relates to the application of a class of benzoheterocyclic alkaloids in the preparation of anti-marine biofouling coatings. Background technique: [0002] In the marine industry, marine fouling organisms are a general term for various animals, plants and microorganisms that inhabit or attach to ships and various underwater artificial facilities and adversely affect human economic activities. There are more than 4,000 species of marine fouling organisms in the world, and 614 species have been recorded in my country's coastal areas, among which the most important groups are algae, hydra, external anal animals, eucalyptus, bivalves, barnacles, and sea squirts. Marine fouling organisms attach, grow and even form communities on the surface of various objects such as hulls, water pipes, fishing tanks, and oil wells, causing marine biofouling, which seriously affects and hinders people's ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/12C09D5/16C07D487/04C07D491/052C07D491/147C07D471/04
Inventor 漆淑华张晓勇徐新亚
Owner SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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