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Published on: November 18, 2015
Antifouling activity of green-synthesized 7-hydroxy-4-methylcoumarin
Miriam Pérez1, Mónica García2, Diego Ruiz3
1Centro de Investigación y Desarrollo en Tecnología de Pinturas (CIDEPINT), Calle 52 e/ 121 y 122, 1900 La Plata, Argentina; Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Calle 60 y 122, 1900 La Plata, Argentina.
Abstract:
In the search for new environmental-friendly antifoulants for replace metallic biocides, 7-hydroxy-4-methylcoumarin was synthesized according to green chemistry procedures. This compound was characterized by current organic analysis and its antifouling properties were firstly evaluated on the bivalve Mytilus edulis platensis in the laboratory. In the second stage, a soluble matrix antifouling coating formulated with this compound was assayed in marine environment. Laboratory experiments showed that 7-hydroxy-4-methylcoumarin was effective in inhibiting both the settlement as well as the byssogenesis of mussels. In addition, after exposure time in the sea, painted panels containing this compound showed strong antifouling effect on conspicuous species of the fouling community of Mar el Plata harbor. In conclusion, green-synthesized coumarin could be a suitable antifoulant candidate for marine protective coatings.

