| Journal: | Anais da Academia Brasileira de Ciencias |
| Database: | PERIÓDICA |
| System number: | 000417707 |
| ISSN: | 0001-3765 |
| Authors: | Silveira, Amanda G. da1 Santini, Elio J2 Kulczynski, Stela M3 Trevisan, Romulo4 Wastowski, Arci D5 Gatto, Darci A6 |
| Institutions: | 1Universidade Federal de Santa Maria, Centro de Ciencias Rurais, Santa Maria, Rio Grande do Sul. Brasil 2Universidade Federal de Santa Maria, Departamento de Ciencias Florestais, Santa Maria, Rio Grande do Sul. Brasil 3Universidade Federal de Santa Maria, Departamento de Ciencias Agronomicas e Ambientais, Frederico Westphalen, Rio Grande do Sul. Brasil 4Universidade Federal de Santa Maria, Departamento de Engenharia Florestal, Frederico Westphalen, Rio Grande do Sul. Brasil 5Universidade Federal de Santa Maria, Departamento de Engenharia e Tecnologia Ambiental, Frederico Westphalen, Rio Grande do Sul. Brasil 6Universidade Federal de Pelotas, Centro de Engenharias, Pelotas, Rio Grande do Sul. Brasil |
| Year: | 2017 |
| Season: | Dic |
| Volumen: | 89 |
| Number: | 4 |
| Pages: | 3031-3038 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | High toxicity of the preservatives most frequently used in wood treatment and the resulting risks of handling pose a threat to small producers and to the environment. In an attempt to mitigate these problems, the present study was conducted with the objective of evaluating the preservative effect of tannic extract on biodeterioration of Acacia mearnsii wood. For this purpose, untreated and preserved specimens, some with tannin extract and some with a preservative mixture based on CCB (Chromated Copper Borate), were submitted to accelerated rotting trials with the fungus that causes white rot (Pycnoporus sanguineus) for 16 weeks. The evaluations were made with a basis on weight loss and chemical components analysis, and they showed that the natural resistance of Acacia wood is moderate when exposed to the white rot fungus. The tannin concentrations showed similar effects to those of the CBB mixture in all evaluations, i.e., they significantly increased the biological resistance of the material, which started to be classified as very resistant to the fungus. Overall, the results suggest that tannin can be considered as a potential natural preservative product |
| Disciplines: | Agrociencias |
| Keyword: | Silvicultura, Tecnología de la madera, Calidad de la madera, Pudrición blanca, Extractos vegetales, Taninos, Acacia mearnsii, Leguminosae |
| Keyword: | Silviculture, Wood technology, Wood quality, White rot, Plant extracts, Tannins, Acacia mearnsii, Leguminosae |
| Full text: | Texto completo (Ver HTML) |
