Application of cycle (proline-alanine) in preventing and removing marine fouling organism

A biological control and marine fouling technology, applied in the field of marine antifouling coatings, has achieved good application prospects, easy access, and great potential for popularization and application

CN101724305AInactive Publication Date: 2010-06-09SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2010-06-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an application of cycle (proline-alanine) in preventing and removing marine fouling organism; the molecular formula of the cycle (proline-alanine) is C8H12N202, the molecular weight thereof is 168, the structural formula thereof can be seen in the chart. The cycle (proline-alanine) enjoys remarkable inhibitory action on attachment of marine organism to solids and demonstrates remarkable effect in case of low-content coating on the marine organism; meanwhile, the cycle (proline-alanine) is organic compound featuring natural existence, thus not polluting water environment; being safe and non-toxic, the cycle (proline-alanine) does not kill marine organism while inhibiting attachment thereof; moreover, being different existing antifouling materials extracted from marine organism, the cycle (proline-alanine) features mature artificial synthesis process, simple and convenient access, adaptability to mass production, reliable and stable source, thus enjoying very good application prospect in preventing and removing fouling organisms in various ocean artificial facilities.
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Description

technical field

[0001] The invention belongs to the field of marine antifouling coatings, and in particular relates to the application of a cyclic dipeptide in the prevention and control of marine fouling organisms. Background technique

[0002] Marine fouling organisms refer to marine organisms that are fixed or inhabited on the underwater solid surface of ships and various artificial facilities, and have adverse effects on human economic activities. The main hazards are to increase the resistance of ships, reduce the speed of navigation, and increase fuel consumption; Blocking water pipes; changing metal corrosion process, resulting in localized corrosion or perforation; hindering the normal operation of various marine facilities, causing drift, imbalance or even overturning; in marine aquaculture, it will also compete with cultured shellfish for attachment base and bait, Hinder the growth and development of breeding objects, and reduce the quality of aquatic products. ...

Examples

Embodiment 1

[0027] Experimental group I: the ring (proline-alanine) was dissolved in methanol to prepare a solution with a concentration of 28.26 μg / ml. Add 1 ml of this solution to a petri dish with a diameter of 6 cm, and make it evenly cover the bottom of the petri dish. After the solvent is completely evaporated, the content of the ring (proline-alanine) coated on the bottom of the petri dish is 1 μg / cm 2 . Add 10ml of seawater.

[0028] Experimental group II: the ring (proline-alanine) was dissolved in methanol to prepare a solution with a concentration of 98.91 μg / ml. Add 1 ml of this solution to a petri dish with a diameter of 6 cm, and make it evenly cover the bottom of the petri dish. After the solvent is completely evaporated, the content of the ring (proline-alanine) coated on the bottom of the petri dish is 3.5 μg / cm 2 . Add 10ml of seawater.

[0029] Control group: Add 1ml of methanol to distribute the solution evenly on the bottom of the petri dish, and then add 10ml of ...

Embodiment 2

[0036] Experimental group: the ring (proline-alanine) was dissolved in methanol to prepare a solution with a concentration of 282.6 μg / ml. Add 1 ml of this solution to a petri dish with a diameter of 6 cm, and make it evenly cover the bottom of the petri dish. After the solvent is completely evaporated, the content of the ring (proline-alanine) coated on the bottom of the petri dish is 10 μg / cm 2 . Add 10ml of seawater.

[0037] Control group: Add 1ml of methanol to distribute the solution evenly on the bottom of the petri dish, and then add 10ml of seawater after the solvent has evaporated completely.

[0038] Blank group: add 10ml of seawater.

[0039] Determination of the number of larvae: Take the water body containing the larvae of Pinctada martensii from the nursery pond and concentrate it with a sieve. Take 50ml each for three times, add 1-2 drops of formalin solution to kill the larvae, and then count them under a microscope. The average value obtained is the densi...