Repositorio UFRO · Omeka S

Sequential white-rot and brown-rot fungal pretreatment of wheat straw as a promising alternative for complementary mild treatments

Primer Autor	Cristina Diez, Maria
Co-autores	Hermosilla, Edward#Rubilar, Olga#Schalchli, Heidi#da Silva, Ayla Sant'Ana#Ferreira-Leitao, Viridiana
Título	Sequential white-rot and brown-rot fungal pretreatment of wheat straw as a promising alternative for complementary mild treatments
Editorial	PERGAMON-ELSEVIER SCIENCE LTD
Revista	WASTE MANAGEMENT
Lenguaje	en
Resumen	White-rot and brown-rot fungi have complementary mechanisms to selectively degrade lignin and holocellullose, respectively. Thereby, a fungal co-culture of a white-rot and a brown-rot fungal could result in efficient strategy for a mild lignocellulosic biomass pretreatment. In this work, single, sequential and co-inoculation of the selective-lignin degrading white-rot fungus Ganoderma lobatum and the brown-rot fungus Gloeophyllum trabeum were evaluated as biological pretreatments of wheat straw to enhance enzymatic hydrolysis of cellulose. The single cultures of G. lobatum and G. trabeum exhibited preferential degradation of lignin and hemicellulose, respectively. The total crystallinity index decreased in samples pretreated with G. trabeum but not with G. lobatum. The pretreatment with single cultures of G. lobatum or G. trabeum increased glucose yields by 43.6% and 26.1% respectively compared to untreated straw. Although co-inoculation resulted in higher yields of glucose when compared with single cultures, only a slight synergistic effect between fungi was observed. Contrary, the sequential inoculation of G. lobatum incubated for 10 days followed by G. trabeum incubated for 10 days more showed a strong synergic effect on enzymatic hydrolysis. This sequential culture showed the highest glucose yield (191.5 mg g(-1) wheat straw), 2.8-fold higher than untreated wheat straw, and 140-150% higher than the single-cultures of G. lobatum and G. trabeum, respectively. (C) 2018 Elsevier Ltd. All rights reserved.
Tipo de Recurso	Artículo original
Description	This research was supported by CONICYT Doctoral scholarship 21120634, FAPERJ-UFRO FPJ15-0005 projects and CONICYT/FONDAP/15130015. Esta investigación fue financiada por la beca de Doctorado CONICYT 21120634, los proyectos FAPERJ-UFRO FPJ15-0005 y CONICYT/FONDAP/15130015.
doi	10.1016/j.wasman.2018.07.044
Formato Recurso	pdf
Palabras Claves	Wheat straw# Agricultural waste# Biological pretreatment# White-rot fungus# Brown-rot fungus# Cellulose hydrolysis
Ubicación del archivo	http://dx.doi.org/10.1016/j.wasman.2018.07.044
Categoría OCDE	Engineering, Environmental# Environmental Sciences
Materias	Paja de trigo# Residuos agrícolas# Pretratamiento biológico# Hongo de pudrición blanca# Hongo de pudrición parda# Hidrólisis de celulosa
Disciplinas de la OCDE	Biotecnología agrícola Agricultura Microbiología
Id de Web of Science	WOS:000449133500026
Título de la cita (Recomendado-único)	Sequential white-rot and brown-rot fungal pretreatment of wheat straw as a promising alternative for complementary mild treatments
Identificador del recurso (Mandatado-único)	Artículo original
Versión del recurso (Recomendado-único)	version publicada
Editorial	PERGAMON-ELSEVIER SCIENCE LTD
Revista/Libro	WASTE MANAGEMENT
Categoría WOS	Ingeniería Ambiental# Ciencias Ambientales
ISSN	0956-053X
Idioma	en
Referencia del Financiador (Mandatado si es aplicable-repetible)	ANID CONICYT Doctoral 21120634# FAPERJ-UFRO FPJ15-0005#ANID CONICYT FONDAP 15130015 ANID CONICYT Doctoral scholarship 21120634 FAPERJ-UFRO FPJ15-0005 ANID CONICYT FONDAP 15130015
Descripción	This research was supported by CONICYT Doctoral scholarship 21120634, FAPERJ-UFRO FPJ15-0005 projects and CONICYT/FONDAP/15130015.
Formato	pdf
Tipo de ruta	hibrida#verde
Access Rights	metadata
Derechos de acceso	metadata
Página de inicio (Recomendado-único)	51
Página final (Recomendado-único)	56