Natural compounds as potential algaecides for waterborne paints
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 alternat...
Guardado en:
| Autores principales: | , , , |
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| Formato: | Articulo Comunicacion |
| Lenguaje: | Inglés |
| Publicado: |
2018
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/83427 |
| Aporte de: |
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I19-R120-10915-83427 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ingeniería Química Natural organic compounds Biocide Algaecide Waterborne paint Phototrophic biofilm |
| spellingShingle |
Ingeniería Química Natural organic compounds Biocide Algaecide Waterborne paint Phototrophic biofilm Gómez de Saravia, Sandra Gabriela Rastelli, Silvia Elena Blustein, Guillermo Viera, Marisa Natural compounds as potential algaecides for waterborne paints |
| topic_facet |
Ingeniería Química Natural organic compounds Biocide Algaecide Waterborne paint Phototrophic biofilm |
| description |
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. |
| format |
Articulo Comunicacion |
| author |
Gómez de Saravia, Sandra Gabriela Rastelli, Silvia Elena Blustein, Guillermo Viera, Marisa |
| author_facet |
Gómez de Saravia, Sandra Gabriela Rastelli, Silvia Elena Blustein, Guillermo Viera, Marisa |
| author_sort |
Gómez de Saravia, Sandra Gabriela |
| title |
Natural compounds as potential algaecides for waterborne paints |
| title_short |
Natural compounds as potential algaecides for waterborne paints |
| title_full |
Natural compounds as potential algaecides for waterborne paints |
| title_fullStr |
Natural compounds as potential algaecides for waterborne paints |
| title_full_unstemmed |
Natural compounds as potential algaecides for waterborne paints |
| title_sort |
natural compounds as potential algaecides for waterborne paints |
| publishDate |
2018 |
| url |
http://sedici.unlp.edu.ar/handle/10915/83427 |
| work_keys_str_mv |
AT gomezdesaraviasandragabriela naturalcompoundsaspotentialalgaecidesforwaterbornepaints AT rastellisilviaelena naturalcompoundsaspotentialalgaecidesforwaterbornepaints AT blusteinguillermo naturalcompoundsaspotentialalgaecidesforwaterbornepaints AT vieramarisa naturalcompoundsaspotentialalgaecidesforwaterbornepaints |
| bdutipo_str |
Repositorios |
| _version_ |
1764820488606973953 |