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Anti-Fouling Exopolysaccharides Isolated from Cultures of Vibrio Alginolyticus and Vibrio Proteolyticus一種海洋弧線菌產生的無毒性抗污損天然化合物

It is well known that growth of micro-organisms or macrofouling matters on the submerged parts of a structure may have detrimental effects on their operation and their corrosion rate.

A method of preventing fouling of aquatic surfaces by organisms is invented. It does not contaminate the environment to the extent contamination occurred using previous anti-fouling methods. It concerns a bacterial product with antifouling properties against larvae of dominant marine fouling organisms which therefore avoids such organisms from blooming on surfaces with these compounds. In suspension culture, this bacterium releases compounds of high molecular weight that can be harvested by ultrafiltration. This high molecular weight fraction exhibits prominent antifouling activity against fouling organisms on global scale. The antifouling effect has been demonstrated to be non-toxic to the target organisms and is reversible in the absence of the agent.
Technology Benefits
1. Non-toxic, reversible and does not bioaccumulate
2. Relatively easy to obtain government approval due to its environmental friendliness
3. Can be generated biotechnologically in large scale using commercially available technology
Technology Application
- Non-toxic antifouling products for Shipping industries, Marine paint manufacturers, pipelines, oil platforms, ocean-going vessels, equipment for use under the sea
Supplementary Information
Patent Number: US7090856B2
Application Number: US2003465448A
Inventor: Qian, Pei Yuan | Dobretsov, Serguei | Harder, Tilmann | Lau, Chun Kwan Stanley
Priority Date: 19 Jun 2003
Priority Number: US7090856B2
Application Date: 19 Jun 2003
Publication Date: 15 Aug 2006
IPC Current: A61K003100 | A61K003500 | A61K003900 | C09D000500 | C12N000121 | C12P000104 | C12P001900
US Class: 4242611 | 10601505 | 42407809 | 424116 | 424123 | 4242341 | 514054
Assignee Applicant: The Hong Kong University of Science & Technology
Title: Anti-fouling exopolysaccharides isolated from cultures of Vibrio alginolyticus and Vibrio proteolyticus
Usefulness: Anti-fouling exopolysaccharides isolated from cultures of Vibrio alginolyticus and Vibrio proteolyticus
Summary: The method is useful for producing an anti-fouling agent. The anti-fouling agent is useful for preventing marine biofouling.
Novelty: Producing an anti-fouling agent, useful for preventing marine biofouling, comprises culturing a Vibrio species in an aqueous solution
Environmental/Green Technology
Sub Category
Application Date
19 Jun 2003
Application No.
US 10/465448
Patent Information
US 7090856
ID No.
Hong Kong

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