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dc.title Natural compounds as potential algaecides for waterborne paints en
dc.type Comunicacion es
dcterms.abstract To eliminate and prevent the formation of phototrophic biofilms on painted walls, chemicals are added to paints. These chemicals, in general, also have toxic effects on the environment. Plants synthesize secondary metabolites which have antimicrobial properties and that may be a sustainable alternative to traditional biocides. In this work, algal species isolated from biofilms formed on deteriorated painted surfaces were taxonomically identified. Observations with the optical microscope revealed the presence of mixed biofilms composed of algae belonging to the Cyanophyta, Chlorophyta, and Streptophyta divisions. The algaecide effect of natural compounds of vegetal origin such as anisole, eugenol, guaiacol, and thymol was evaluated by the microatmosphere technique. Growth inhibition of phototrophic organisms was obtained with thymol in all the concentrations used. Eugenol and guaiacol showed a total growth inhibition at the highest concentration assayed (300 lmol cm 2) and a decrease in growth at 40 lmol cm 2, while anisole did not exert any inhibitory action at the assayed concentrations. Due to these results, eugenol, thymol, and guaiacol were incorporated in an exterior waterborne paint at a concentration of 2%. Samples painted with these formulations were not colonized by algae, indicating that these compounds could be used as biocides in paint formulations. en
dcterms.extent 1191-1200 es
dcterms.issued 2018
dcterms.language Inglés es
dcterms.license Attribution-NonCommercial-ShareAlike 4.0 International (BY-NC-SA 4.0) es
dcterms.subject Natural organic compounds en
dcterms.subject Biocide en
dcterms.subject Algaecide en
dcterms.subject Waterborne paint en
dcterms.subject Phototrophic biofilm en
cic.version info:eu-repo/semantics/acceptedVersion es Gómez de Saravia, Sandra Gabriela es Rastelli, Silvia E. es Blustein, Guillermo es Viera, Marisa es
cic.lugarDesarrollo Centro de Investigación y Desarrollo en Tecnología de Pinturas es
dcterms.subject.materia Ciencias Químicas es
dcterms.identifier.url Recurso online es
dcterms.identifier.other doi:10.1007/s11998-018-0099-7 es
dcterms.isPartOf.issue vol. 15, no. 5 es
dcterms.isPartOf.series Journal of Coatings Technological and Research es
cic.isPeerReviewed true es
cic.isFulltext true es
cic.institucionOrigen Centro de Investigación y Desarrollo en Tecnología de Pinturas es


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