Publicación:
EFFECT OF ALBINO OPHIOSTOMA STRAINS ON EUCALYPTUS NITENS EXTRACTIVES

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dc.creatorJULIO ENRIQUE ILDEFONSO ALARCÓN ENOS
dc.creatorJOSÉ ARTURO NAVARRETE ARAYA
dc.creatorLAURA ROSA REYES NÚÑEZ
dc.date2015
dc.date.accessioned2025-01-10T14:37:08Z
dc.date.available2025-01-10T14:37:08Z
dc.date.issued2015
dc.description.abstractWOOD 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 × 108 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 ?- SITOSTEROL CONTENT.
dc.formatapplication/pdf
dc.identifier.doi10.4067/S0718-221X2015005000016
dc.identifier.issn0717-3644
dc.identifier.issn0718-221X
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/8218
dc.languagespa
dc.publisherMADERAS: CIENCIA Y TECNOLOGIA
dc.relation.uri10.4067/S0718-221X2015005000016
dc.rightsPUBLICADA
dc.subjectSITOSTEROL.
dc.subjectPITCH
dc.subjectOPHIOSTOMA
dc.subjectEXTRACTIVES
dc.subjectEUCALYPTUS NITENS
dc.subjectALBINO FUNGI
dc.titleEFFECT OF ALBINO OPHIOSTOMA STRAINS ON EUCALYPTUS NITENS EXTRACTIVES
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDEPARTAMENTO DE CIENCIAS BASICAS
ubb.Otra ReparticionDEPARTAMENTO DE INGENIERIA EN MADERAS
ubb.Otra ReparticionESCUELA DE INGENIERIA CIVIL QUIMICA
ubb.SedeCHILLÁN
ubb.SedeCONCEPCIÓN
ubb.SedeCONCEPCIÓN
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