Anti-Fouling Exopolysaccharides Isolated from Cultures of Vibrio Alginolyticus and Vibrio Proteolyticus
Patent Information:
1. Filing Country: USA
Application No: 10/465448
Filing Date: 19 June 2003
Patent No: 7090856
Issue Date: 15 August 2006
2. Filing Country: China
Application No: 200410049569.3
Filing Date: 18 June 2004
Patent No: ZL200410049569.3
Issue Date: 14 May 2008
Inventor 1: Dr. Tilmann, HARDER
Inventor 2: Prof. Stanley Chun Kwan, LAU
Inventor 3: Prof. Peiyuan, QIAN
Inventor 4: Dr. Serguei Vladimirovich, DOBRETSOV

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.
Potential Application   Advantage
- Non-toxic antifouling products for Shipping industries, Marine paint manufacturers, pipelines, oil platforms, ocean-going vessels, equipment for use under the sea   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
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