Tannic extract potential as natural wood preservative of Acacia mearnsii
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Anais da Academia Brasileira de Ciências (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000603031 |
Resumo: | 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. |
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Tannic extract potential as natural wood preservative of Acacia mearnsiiextractiveslaboratory testingwood qualitywhite rotABSTRACT 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.Academia Brasileira de Ciências2017-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000603031Anais da Academia Brasileira de Ciências v.89 n.4 2017reponame:Anais da Academia Brasileira de Ciências (Online)instname:Academia Brasileira de Ciências (ABC)instacron:ABC10.1590/0001-3765201720170485info:eu-repo/semantics/openAccessSILVEIRA,AMANDA G. DASANTINI,ELIO J.KULCZYNSKI,STELA M.TREVISAN,RÔMULOWASTOWSKI,ARCI D.GATTO,DARCI A.eng2017-12-13T00:00:00Zoai:scielo:S0001-37652017000603031Revistahttp://www.scielo.br/aabchttps://old.scielo.br/oai/scielo-oai.php||aabc@abc.org.br1678-26900001-3765opendoar:2017-12-13T00:00Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)false |
dc.title.none.fl_str_mv |
Tannic extract potential as natural wood preservative of Acacia mearnsii |
title |
Tannic extract potential as natural wood preservative of Acacia mearnsii |
spellingShingle |
Tannic extract potential as natural wood preservative of Acacia mearnsii SILVEIRA,AMANDA G. DA extractives laboratory testing wood quality white rot |
title_short |
Tannic extract potential as natural wood preservative of Acacia mearnsii |
title_full |
Tannic extract potential as natural wood preservative of Acacia mearnsii |
title_fullStr |
Tannic extract potential as natural wood preservative of Acacia mearnsii |
title_full_unstemmed |
Tannic extract potential as natural wood preservative of Acacia mearnsii |
title_sort |
Tannic extract potential as natural wood preservative of Acacia mearnsii |
author |
SILVEIRA,AMANDA G. DA |
author_facet |
SILVEIRA,AMANDA G. DA SANTINI,ELIO J. KULCZYNSKI,STELA M. TREVISAN,RÔMULO WASTOWSKI,ARCI D. GATTO,DARCI A. |
author_role |
author |
author2 |
SANTINI,ELIO J. KULCZYNSKI,STELA M. TREVISAN,RÔMULO WASTOWSKI,ARCI D. GATTO,DARCI A. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
SILVEIRA,AMANDA G. DA SANTINI,ELIO J. KULCZYNSKI,STELA M. TREVISAN,RÔMULO WASTOWSKI,ARCI D. GATTO,DARCI A. |
dc.subject.por.fl_str_mv |
extractives laboratory testing wood quality white rot |
topic |
extractives laboratory testing wood quality white rot |
description |
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. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000603031 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000603031 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0001-3765201720170485 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Academia Brasileira de Ciências |
publisher.none.fl_str_mv |
Academia Brasileira de Ciências |
dc.source.none.fl_str_mv |
Anais da Academia Brasileira de Ciências v.89 n.4 2017 reponame:Anais da Academia Brasileira de Ciências (Online) instname:Academia Brasileira de Ciências (ABC) instacron:ABC |
instname_str |
Academia Brasileira de Ciências (ABC) |
instacron_str |
ABC |
institution |
ABC |
reponame_str |
Anais da Academia Brasileira de Ciências (Online) |
collection |
Anais da Academia Brasileira de Ciências (Online) |
repository.name.fl_str_mv |
Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC) |
repository.mail.fl_str_mv |
||aabc@abc.org.br |
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1754302865221877760 |