Fourier transform infrared spectroscopy in treated woods deteriorated by a white rot fungus

Detalhes bibliográficos
Autor(a) principal: Gallio, Ezequiel
Data de Publicação: 2018
Outros Autores: Zanatta, Paula, Ribes, Débora Duarte, Lazarotto, Marília, Gatto, Darci Alberto, Beltrame, Rafael
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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spelling 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
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dc.identifier.issn.pt_BR.fl_str_mv 0718-221X
dc.identifier.nrb.pt_BR.fl_str_mv 001084460
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url http://hdl.handle.net/10183/194272
dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Maderas. Ciencia y tecnología. Concepción, Chile. Vol. 20, n. 3 (jul. 2018), p. 479-488
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reponame_str Repositório Institucional da UFRGS
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