Project: Enzyme based marine antifouling paint.

The settlement of different macro-and microorganisms on marine surfaces, a process known as biofouling, constitutes a major economic problem for the maritime industry. At present antifouling (AF) paints containing toxic biocides and heavy metals are used on installations and ships. _x000D_However, unwanted adverse effects of the biocides such as toxicity to non-target organisms, imposex in gastropods and increased multi resistance amongst bacteria have been observed. Therefore, new alternative agents are needed. _x000D_The consumption of bunker fuel on a VLCC (Very Large Crude Carrier) is about 100 tons/day (1). _x000D_World largest commercial ship owner (Maerks) has in 2007 used bunker fuel for about 4 billion Euro´s (2). _x000D_The fouling on a ship hull can have adverse effect on the economy and environment. It has been calculated_x000D_that an increase in friction (40 %) due to the fouling on a ship haul will increase the costs of bunker consumption with 20.000 $/day and the CO2 emission with 120 tons/day (1). Reducing the fouling with e.g.. 2 % (friction) could give a saving of 1000 $/day and reduction in CO2 on 6 tons/day (1)._x000D_The ultimate effect of fouling can be loss of the ability to manoeuvre. Prevention of fouling is therefore of outmost importance._x000D_Fouling organisms use biological adhesives in their initial attachment process and a way to disrupt this is by employing adhesive degrading enzymes. Profound effect on the settlement of algal spores and barnacle larvae has been shown (3), (7). The research based company BioLocus A/S focus on the concept of employing biodegradable enzymes to AF paints. When certain enzymes are applied to a polishing paint, it COtains profound antifouling effect for one fouling season (8-10 Months)._x000D_With the ban, by IMO, of TBT ( tributyltin oxide) in AF paints in 2008, no non-toxic environmental friendly alternatives have been offered to the ship owners. The present copper paints or silicones can keep the haul free from fouling but there are still environmental concerns as a result of using these paints. _x000D_The aim of the present project is to have an enzyme based paint that will have benefits for the sea environment and be economical competitive compared to present commercial toxic products. After registration the product is ready for market launch. _x000D_The project objectives is to develop an enzyme-aerogel additive in combination with a silyl-acrylate binder. A prototype AF paint will be developed based on this additive and tested on ships lager than 25 m to document proof of technical concept._x000D_It is anticipated that at least one patent application will be submitted._x000D_The total world market for AF paint, on volume, has been estimated to about 164 million liters per. year. The value of the total market for an enzyme additive, at a price of 2 Euros per. liter, is therefore about 328 million Euros per year (10)._x000D_The Consortium is a well balanced Pship consisting of the following participants:_x000D_BioLocus A/S (BLC, DK) is a R&D based biotech SME with competencies in enzymology and microbiology. The P has also know-how in paint formulation and will be the managing coordinator of the project and Consortium._x000D_The University of Copenhagen (KUI, DK) has competencies in general microbiology, biofilm formation and enzymology. This P will be responsible for the biofilm tests and assays development. It is anticipated a PhD study will be completed as part of the project._x000D_Bjarga AB (BJA, SE) is a SME with competencies in aerogel development. The SME will provide aerogels prepared with super critical CO2 and will scale up this process to small production volumes._x000D_Institute for Surface Chemistry (YKi, SE) is the internationally leading industrial research institute in applied surface and colloid chemistry. YKi will provide aerogels covered with polymer skins to protect the enzyme-aerogel additive in the based paint. _x000D_Jotun A/S (JOT, NO) is the worlds second largest marine paint manufacture. Jotun has competencies in paint development, paint formulation and tests of products. Jotun has factories, marketing and sales organizations net world wide. _x000D_References _x000D_1. Eivind A. Berg/Virginia Beach 2008/Antifouling vs. environment/Jotun A/S._x000D_2. http://www.havogklima.dk/kampagne2008.php_x000D_3. Dobretsov, S., Xiong, H., Xu, Y., Levin, LA.,Qian, P. (2007) Marin. Biotechnol. 9; 388-297_x000D_4. Test af prototypemaling, CoatZyme, på lystbåde 2007 -in Danish_x000D_5. Hangler, M., Burmølle, M., Schneider, I., Allermann, K., Jensen, B., (2009), Biofouling Vol. 25, No. 7, 667–674._x000D_6. O´Toole, GA., Kolter, R., (1998). Mol. Microbiol. 28; 449-461_x000D_7. Pettitt, ME., Henry, SL., Callow, ME., Callow, JA., Clare, AS. (2004). Biofouling. 20; 299-311_x000D_8. Yebra, DM., Kiil, S., Dam-Johansen, K., Weinell, CE., (2006). AlChE. 52; 1926-1940._x000D_9. Martin Hangler, Ib Schneider & Knud Allermann, Developing sustainable AF coatings for the future, Färg och Lack Scandinavia. (2008), No. 4. 4-7. _x000D_10. http://www.biolocus.com_x000D__x000D_ _x000D__x000D_

Acronym AEROZYME (Reference Number: 5121)
Duration 04/01/2010 - 04/01/2013
Project Topic The aim of the project is to develop an enzyme-aerogel additive. A prototype antifouling paint - with silyl-acrylate - will be developed based on this additive. The new antifouling paint will be tested to document proof of technical concept. After registration the product will be market launched.
Network Eurostars
Call Eurostars Cut-Off 3

Project partner

Number Name Role Country
6 BioLocus A/S Observer Denmark
6 University of Copenhagen Partner Denmark
6 YKi, Institute for Surface Chemistry Partner Sweden
6 Jotun AS Partner Norway
6 CoatZyme ApS Coordinator Denmark
6 Bjarga AB Partner Sweden