Investigation of Chondrus crispus as a potential source of new antifouling agents
Investigation of Chondrus crispus as a potential source of new antifouling agents
The search for environment-friendly and non-toxic antifouling (AF) paint components has led to the investigation of natural products from seaweeds. The defence metabolites used by algae to deter unwanted epibiosis have potential for harnessing and use in AF applications. Crude algal extracts may provide a suitable mixture of compounds with AF potency. Crude ethanol extracts of the macroalgae Chondrus crispus (Rhodophyceae), from both dried and fresh sources were tested and compared using bioassays based on five marine bacterial strains, five phytoplankton strains and two macroalgae to assess the AF efficacy. Dried extract from the algae had a lower minimum inhibitory concentration at 25 ?g mL?1 against the growth of bacteria and phytoplankton species than that from the fresh source. Macroalgae tests indicated that the extracts had an anti-germination activity 25–50 ?g mL?1 against both Undaria pinnatifida and Ulva intestinalis spores. A field trial of AF paint incorporating crude extract indicated an initial AF potency lasting six weeks.
antifoulant, biofouling, chondrus crispus, macroalgae, natural products
Chambers, L.D.
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Hellio, C.
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Stokes, K.R.
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Dennington, S.P.
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Goodes, L.R.
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Wood, R.J.K.
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Walsh, F.C.
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29 July 2011
Chambers, L.D.
4c2d98c5-d927-4a78-aabc-4ebee405065f
Hellio, C.
b25c5624-5931-4467-ae73-342bb7dc9d7e
Stokes, K.R.
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Dennington, S.P.
6a329a55-8c10-4515-8920-d8f40f302221
Goodes, L.R.
83fd1cdf-8fba-4089-9094-971f6460f5ef
Wood, R.J.K.
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Walsh, F.C.
309528e7-062e-439b-af40-9309bc91efb2
Chambers, L.D., Hellio, C., Stokes, K.R., Dennington, S.P., Goodes, L.R., Wood, R.J.K. and Walsh, F.C.
(2011)
Investigation of Chondrus crispus as a potential source of new antifouling agents.
International Biodeterioration & Biodegradation.
(doi:10.1016/j.ibiod.2011.07.002).
Abstract
The search for environment-friendly and non-toxic antifouling (AF) paint components has led to the investigation of natural products from seaweeds. The defence metabolites used by algae to deter unwanted epibiosis have potential for harnessing and use in AF applications. Crude algal extracts may provide a suitable mixture of compounds with AF potency. Crude ethanol extracts of the macroalgae Chondrus crispus (Rhodophyceae), from both dried and fresh sources were tested and compared using bioassays based on five marine bacterial strains, five phytoplankton strains and two macroalgae to assess the AF efficacy. Dried extract from the algae had a lower minimum inhibitory concentration at 25 ?g mL?1 against the growth of bacteria and phytoplankton species than that from the fresh source. Macroalgae tests indicated that the extracts had an anti-germination activity 25–50 ?g mL?1 against both Undaria pinnatifida and Ulva intestinalis spores. A field trial of AF paint incorporating crude extract indicated an initial AF potency lasting six weeks.
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Published date: 29 July 2011
Keywords:
antifoulant, biofouling, chondrus crispus, macroalgae, natural products
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nCATS Group
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Local EPrints ID: 196327
URI: http://eprints.soton.ac.uk/id/eprint/196327
ISSN: 0964-8305
PURE UUID: 5b33da19-89ce-42e1-9c01-afaef2cb9077
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Date deposited: 06 Sep 2011 11:13
Last modified: 15 Mar 2024 02:47
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Author:
L.D. Chambers
Author:
C. Hellio
Author:
L.R. Goodes
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