Fourier transform infrared spectroscopy in treated woods deteriorated by a white rot fungus
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/194272 |
Resumo: | This study aimed to analyze chemical changes by Fourier Transform Infrared Spectroscopy of Eucalyptus dunnii and Pinus elliottii treated woods subjected to an accelerated decay test with the white rot fungus Ganoderma applanatum. The wood test specimens (2,5x2,5x0,9 cm) were impregnated with preservative solutions of chromated copper borate and synthetic pyrethroids and carbamates with 6% concentration by a vaccum-pressure process. After a decay test of 16 weeks, the chemical changes of the treated and untreated wood samples were evaluated by Fourier Transform Infrared Spectroscopy. It was observed that the rot fungus attack caused a variation in the intensity and a displacement of spectrum peaks, indicating a change to the woods’ chemical composition after fungal exposure. The lignin / carbohydrate ratio indicated that the fungus had no preference for a specific cell wall component, pointing to a simultaneous deterioration of cellulose, hemicellulose and lignin in the treated and untreated woods. Finally, the Fourier Transform Infrared Spectroscopy technique, together with the lignin / carbohydrate ratio analysis, proved efficient in the study of the variation of the wood chemical modifications deteriorated by rot fungi. |
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Gallio, EzequielZanatta, PaulaRibes, Débora DuarteLazarotto, MaríliaGatto, Darci AlbertoBeltrame, Rafael2019-05-15T02:38:10Z20180718-221Xhttp://hdl.handle.net/10183/194272001084460This study aimed to analyze chemical changes by Fourier Transform Infrared Spectroscopy of Eucalyptus dunnii and Pinus elliottii treated woods subjected to an accelerated decay test with the white rot fungus Ganoderma applanatum. The wood test specimens (2,5x2,5x0,9 cm) were impregnated with preservative solutions of chromated copper borate and synthetic pyrethroids and carbamates with 6% concentration by a vaccum-pressure process. After a decay test of 16 weeks, the chemical changes of the treated and untreated wood samples were evaluated by Fourier Transform Infrared Spectroscopy. It was observed that the rot fungus attack caused a variation in the intensity and a displacement of spectrum peaks, indicating a change to the woods’ chemical composition after fungal exposure. The lignin / carbohydrate ratio indicated that the fungus had no preference for a specific cell wall component, pointing to a simultaneous deterioration of cellulose, hemicellulose and lignin in the treated and untreated woods. Finally, the Fourier Transform Infrared Spectroscopy technique, together with the lignin / carbohydrate ratio analysis, proved efficient in the study of the variation of the wood chemical modifications deteriorated by rot fungi.application/pdfengMaderas. Ciencia y tecnología. Concepción, Chile. Vol. 20, n. 3 (jul. 2018), p. 479-488MadeiraFungoPodridão brancaDoença de plantaPreservacao da madeiraChemical changeEucalyptus dunniiGanoderma applanatumPinus elliottiiWood preservationFourier transform infrared spectroscopy in treated woods deteriorated by a white rot fungusEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001084460.pdf.txt001084460.pdf.txtExtracted Texttext/plain27519http://www.lume.ufrgs.br/bitstream/10183/194272/2/001084460.pdf.txt3746d7f792af3aeee15b6fc9f2f1adc9MD52ORIGINAL001084460.pdfTexto completo (inglês)application/pdf851287http://www.lume.ufrgs.br/bitstream/10183/194272/1/001084460.pdf7687ce758b316688cfe61df8bfb67d2aMD5110183/1942722019-05-16 02:37:23.08606oai:www.lume.ufrgs.br:10183/194272Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2019-05-16T05:37:23Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Fourier transform infrared spectroscopy in treated woods deteriorated by a white rot fungus |
title |
Fourier transform infrared spectroscopy in treated woods deteriorated by a white rot fungus |
spellingShingle |
Fourier transform infrared spectroscopy in treated woods deteriorated by a white rot fungus Gallio, Ezequiel Madeira Fungo Podridão branca Doença de planta Preservacao da madeira Chemical change Eucalyptus dunnii Ganoderma applanatum Pinus elliottii Wood preservation |
title_short |
Fourier transform infrared spectroscopy in treated woods deteriorated by a white rot fungus |
title_full |
Fourier transform infrared spectroscopy in treated woods deteriorated by a white rot fungus |
title_fullStr |
Fourier transform infrared spectroscopy in treated woods deteriorated by a white rot fungus |
title_full_unstemmed |
Fourier transform infrared spectroscopy in treated woods deteriorated by a white rot fungus |
title_sort |
Fourier transform infrared spectroscopy in treated woods deteriorated by a white rot fungus |
author |
Gallio, Ezequiel |
author_facet |
Gallio, Ezequiel Zanatta, Paula Ribes, Débora Duarte Lazarotto, Marília Gatto, Darci Alberto Beltrame, Rafael |
author_role |
author |
author2 |
Zanatta, Paula Ribes, Débora Duarte Lazarotto, Marília Gatto, Darci Alberto Beltrame, Rafael |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Gallio, Ezequiel Zanatta, Paula Ribes, Débora Duarte Lazarotto, Marília Gatto, Darci Alberto Beltrame, Rafael |
dc.subject.por.fl_str_mv |
Madeira Fungo Podridão branca Doença de planta Preservacao da madeira |
topic |
Madeira Fungo Podridão branca Doença de planta Preservacao da madeira Chemical change Eucalyptus dunnii Ganoderma applanatum Pinus elliottii Wood preservation |
dc.subject.eng.fl_str_mv |
Chemical change Eucalyptus dunnii Ganoderma applanatum Pinus elliottii Wood preservation |
description |
This study aimed to analyze chemical changes by Fourier Transform Infrared Spectroscopy of Eucalyptus dunnii and Pinus elliottii treated woods subjected to an accelerated decay test with the white rot fungus Ganoderma applanatum. The wood test specimens (2,5x2,5x0,9 cm) were impregnated with preservative solutions of chromated copper borate and synthetic pyrethroids and carbamates with 6% concentration by a vaccum-pressure process. After a decay test of 16 weeks, the chemical changes of the treated and untreated wood samples were evaluated by Fourier Transform Infrared Spectroscopy. It was observed that the rot fungus attack caused a variation in the intensity and a displacement of spectrum peaks, indicating a change to the woods’ chemical composition after fungal exposure. The lignin / carbohydrate ratio indicated that the fungus had no preference for a specific cell wall component, pointing to a simultaneous deterioration of cellulose, hemicellulose and lignin in the treated and untreated woods. Finally, the Fourier Transform Infrared Spectroscopy technique, together with the lignin / carbohydrate ratio analysis, proved efficient in the study of the variation of the wood chemical modifications deteriorated by rot fungi. |
publishDate |
2018 |
dc.date.issued.fl_str_mv |
2018 |
dc.date.accessioned.fl_str_mv |
2019-05-15T02:38:10Z |
dc.type.driver.fl_str_mv |
Estrangeiro 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://hdl.handle.net/10183/194272 |
dc.identifier.issn.pt_BR.fl_str_mv |
0718-221X |
dc.identifier.nrb.pt_BR.fl_str_mv |
001084460 |
identifier_str_mv |
0718-221X 001084460 |
url |
http://hdl.handle.net/10183/194272 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Maderas. Ciencia y tecnología. Concepción, Chile. Vol. 20, n. 3 (jul. 2018), p. 479-488 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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UFRGS |
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Repositório Institucional da UFRGS |
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