Effect of Albino ophiostoma strains on Eucalyptus nitens extractives

Wood extractives promote pitch formation during pulp and paper manufacturing. To date, this problem has been controlled by extended storage of the chips and/or chemical additives. Biotreatment of the wood prior to pulping provides an alternative that not only decreases the negative impact of the ext...

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Autores principales:	Coloma,Juana, Reyes,Laura, Navarrete,José, Alarcón,Julio, Delgado,Lilian, Vera,Renato, Ubilla,Priscilla, Vásquez,Karen, Becerra,José
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2015
Materias:	Albino fungi Eucalyptus nitens extractives pitch Ophiostoma sitosterol
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2015000100017
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spelling	oai:scielo:S0718-221X20150001000172015-06-17Effect of Albino ophiostoma strains on Eucalyptus nitens extractivesColoma,JuanaReyes,LauraNavarrete,JoséAlarcón,JulioDelgado,LilianVera,RenatoUbilla,PriscillaVásquez,KarenBecerra,José Albino fungi Eucalyptus nitens extractives pitch Ophiostoma sitosterol Wood extractives promote pitch formation during pulp and paper manufacturing. To date, this problem has been controlled by extended storage of the chips and/or chemical additives. Biotreatment of the wood prior to pulping provides an alternative that not only decreases the negative impact of the extractives but may also improve the kraft pulping efficiency. This initiative seeks to verify the quantity and chemical composition of Eucalyptus nitens wood extractives following biotreatment with three albino fungi species (Ophiostoma floccosum, Ophiostoma piceae and Ophiostoma piliferum). Eucalyptus nitens wood chips were sprayed with spore suspensions of Ophiostoma piliferum, Ophiostoma piceae and Ophiostoma floccosum albino strains (1 × 10(8) spore concentration). After 7 and 21 days of fungal treatment, the extractive content was determined via Soxhlet extraction with an 80:20% n-hexane:ethyl acetate solvent mixture. The Ophiostoma floccosum F1A94, Ophiostoma piliferum F2D8 and Ophiostoma piceae F2A68 strains proved to be most capable of bioreduction with reductions of 35,1%, 33,2% and 29,3%, respectively. The chemical composition of the extract was analyzed via gas chromatography coupled with mass spectrometry, which demonstrated that most of the tested strains could reduce the β- sitosterol content.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.17 n.1 20152015-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2015000100017en10.4067/S0718-221X2015005000016
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Albino fungi Eucalyptus nitens extractives pitch Ophiostoma sitosterol
spellingShingle	Albino fungi Eucalyptus nitens extractives pitch Ophiostoma sitosterol Coloma,Juana Reyes,Laura Navarrete,José Alarcón,Julio Delgado,Lilian Vera,Renato Ubilla,Priscilla Vásquez,Karen Becerra,José Effect of Albino ophiostoma strains on Eucalyptus nitens extractives
description	Wood extractives promote pitch formation during pulp and paper manufacturing. To date, this problem has been controlled by extended storage of the chips and/or chemical additives. Biotreatment of the wood prior to pulping provides an alternative that not only decreases the negative impact of the extractives but may also improve the kraft pulping efficiency. This initiative seeks to verify the quantity and chemical composition of Eucalyptus nitens wood extractives following biotreatment with three albino fungi species (Ophiostoma floccosum, Ophiostoma piceae and Ophiostoma piliferum). Eucalyptus nitens wood chips were sprayed with spore suspensions of Ophiostoma piliferum, Ophiostoma piceae and Ophiostoma floccosum albino strains (1 × 10(8) spore concentration). After 7 and 21 days of fungal treatment, the extractive content was determined via Soxhlet extraction with an 80:20% n-hexane:ethyl acetate solvent mixture. The Ophiostoma floccosum F1A94, Ophiostoma piliferum F2D8 and Ophiostoma piceae F2A68 strains proved to be most capable of bioreduction with reductions of 35,1%, 33,2% and 29,3%, respectively. The chemical composition of the extract was analyzed via gas chromatography coupled with mass spectrometry, which demonstrated that most of the tested strains could reduce the β- sitosterol content.
author	Coloma,Juana Reyes,Laura Navarrete,José Alarcón,Julio Delgado,Lilian Vera,Renato Ubilla,Priscilla Vásquez,Karen Becerra,José
author_facet	Coloma,Juana Reyes,Laura Navarrete,José Alarcón,Julio Delgado,Lilian Vera,Renato Ubilla,Priscilla Vásquez,Karen Becerra,José
author_sort	Coloma,Juana
title	Effect of Albino ophiostoma strains on Eucalyptus nitens extractives
title_short	Effect of Albino ophiostoma strains on Eucalyptus nitens extractives
title_full	Effect of Albino ophiostoma strains on Eucalyptus nitens extractives
title_fullStr	Effect of Albino ophiostoma strains on Eucalyptus nitens extractives
title_full_unstemmed	Effect of Albino ophiostoma strains on Eucalyptus nitens extractives
title_sort	effect of albino ophiostoma strains on eucalyptus nitens extractives
publisher	Universidad del Bío-Bío
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2015000100017
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_version_	1714202593499021312

Effect of Albino ophiostoma strains on Eucalyptus nitens extractives

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