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Application of bitterwood lactone compounds in preventing marine biofouling

A technology for marine biofouling and ester compounds, which is applied in antifouling/underwater coatings, paints containing biocides, organic chemistry, etc. It can achieve the effect of simple and mature acquisition process, strong inhibition of marine biofouling activity, and good inhibition effect.

Active Publication Date: 2020-01-17
深圳市福驷高鼎科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, none of them pointed out the inhibitory effect on barnacles, and did not clarify the specific effective active ingredients in the extract

Method used

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  • Application of bitterwood lactone compounds in preventing marine biofouling
  • Application of bitterwood lactone compounds in preventing marine biofouling
  • Application of bitterwood lactone compounds in preventing marine biofouling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Experimental verification: the inhibitory activity of the crude extract of Brucea javanica on the attachment of barnacle larvae

[0033] Source of material: The fruit of Brucea javanica was collected in Jingxi, Guangxi. It was identified as Brucea javanica by Associate Professor Ma Zhonghui of Guangxi University. The specimen was preserved in the Experimental Center of Chinese Medicine, Guangxi University of Traditional Chinese Medicine.

[0034] Preparation of Brucea javanica extract: crush the dried fruit of Brucea javanica and soak it in 95% ethanol solution for four times, the first time for 5 days, and the last three times for 3 days. The extracts are combined and then concentrated under reduced pressure to obtain an ethanol-free extract. Add water to form a suspension, sequentially extract with petroleum ether, ethyl acetate and n-butanol, concentrate under reduced pressure to dryness to obtain petroleum ether extract, ethyl acetate extract, n-butanol extract, and ...

Embodiment 2

[0040] Example 2 Isolation of the bitterwood lactone compounds preventing marine biofouling from the fruit of Brucea javanica

[0041] The extracting method of described eucalyptus compound comprises the following steps:

[0042] S1. The dried fruit of Brucea javanica was crushed and then soaked and extracted four times with 95% ethanol solution. The first time was soaked for 5 days, the last three times were soaked for 3 days each, and the extracts of the four times were combined.

[0043] S2. concentrating the combined extract under reduced pressure to obtain extract. Add water to the extract to form a suspension, sequentially extract with petroleum ether, ethyl acetate and n-butanol, and concentrate under reduced pressure to dryness to obtain petroleum ether extract (138.8g), ethyl acetate extract (200.0g) , n-butanol extract (189.0g), water part.

[0044] S3. Take ethyl acetate extract extract (200.0g) and go through 200~300 mesh normal phase silica gel column chromatogr...

Embodiment 3

[0059] Embodiment 3 A kind of antifouling paint

[0060] An antifouling paint, comprising an antifouling active component and a film-forming component, the added amount of the antifouling active component is 5% of the weight of the film-forming component; the mass ratio of the antifouling active component is 1:1:1 Brucelipidin, Brucelipidin J and Brucelipidin D; the film-forming component is polyurethane resin.

[0061] Preparation method: mix the anti-fouling active ingredient and polyurethane resin in proportion, add film-forming aids, dispersants, and defoamers, and then disperse to prepare the anti-fouling coating.

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PUM

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Abstract

The invention provides application of a nigakilactone compound in preventing marine biofouling, and relates to the field of biotechnology. The structural formula of the nigakilactone compound is formula I, and in the formula I, each of R1, R2, R3 and R4 is selected from -H or -OH or -CH3 or -COOR' or -OOCR'', wherein R' is -H or -CH3, and R'' is an aliphatic chain having 3 to 7 carbon atoms. The nigakilactone compound has strong inhibitory effect on marine fouling organisms, especially barnacles, and is a non-toxic natural active compound which can be effectively degraded in a water environment and does not cause environmental pollution, and has characteristics of environmental friendliness and high safety. The formula I is shown in the description.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to the application of eucalyptus compounds in preventing marine biofouling. Background technique [0002] Marine fouling organisms are a general term for marine animals, plants and microorganisms that grow on the surface of ships and various marine artificial facilities. Representative species with serious adhesion effects include bacteria, diatoms, enteromorpha, Ulva, barnacles, and mussels. Shellfish, bryozoans, etc. The massive reproduction of fouling organisms will cause great harm to ships and other artificial marine facilities, such as increasing ship navigation resistance, clogging pipelines, accelerating metal corrosion, making instruments and mechanical parts in the ocean malfunction, threatening aquaculture, etc. Marine economic activities bring many disadvantages. The harm caused by marine fouling organisms has caused huge economic losses to marine transportation, aquacultu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D493/10C09D5/16
CPCC07D493/10C09D5/1625
Inventor 苏志维高程海米顺利
Owner 深圳市福驷高鼎科技开发有限公司
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