The development of a marine natural product-based antifouling paint.
Problems with tin and copper antifouling compounds have highlighted the need to develop new environmentally friendly antifouling coatings. Bacteria isolated from living surfaces in the marine environment are a promising source of natural antifouling compounds. Four isolates were used to produce extracts that were formulated into ten water-based paints. All but one of the paints showed activity against a test panel of fouling bacteria. Five of the paints were further tested for their ability to inhibit the settlement of barnacle larvae, Balanus amphitrite, and algal spores of Ulva lactuca, and for their ability to inhibit the growth of U. lactuca. Two paints caused a significant decrease in the number of settled barnacles. One paint containing extract of Pseudomonas sp. strain NUDMB50-11, showed excellent activity in all assays. The antifouling chemicals responsible for the activity of the extract were isolated, using bioassay guided fractionation, and their chemical structures determined.
Burgess
J Grant
JG
School of Life Sciences, Heriot-Watt University, Riccarton, Edinburgh EH14 4AS, UK. j.g.burgess@hw.ac.uk
Boyd
Kenneth G
KG
Armstrong
Evelyn
E
Jiang
Zhong
Z
Yan
Liming
L
Berggren
Matz
M
May
Ulrika
U
Pisacane
Tony
T
Granmo
Ake
A
Adams
David R
DR
D000818:Animals; D001419:Bacteria / Q000737:chemistry*; D001681:Biological Assay; D007814:Larva / Q000502:physiology; D008826:Microbial Sensitivity Tests; D009930:Organic Chemicals / Q000302:isolation & purification / Q000633:toxicity*; D010150:Paint; D012623:Seawater; D001468:Thoracica / Q000502:physiology*; D044445:Ulva / Q000502:physiology*
D009930:Organic Chemicals