RT Journal Article
T1 Simultaneous valorization and detoxification of the hemicellulose rich liquor from the organosolv fractionation
A1 García-Torreiro, María
A1 Martínez-Patiño, José Carlos
A1 Gullón Estévez, Beatriz
A1 Lu Chau, Thelmo Alejandro
A1 Moreira Vilar, María Teresa
A1 Lema Rodicio, Juan Manuel
A1 Eibes González, Gemma María
AB Fractionation of lignocellulosic biomass with solvents (organosolv process) generates a hemicellulose-rich liquor with a high content of phenolics which is particularly toxic. This work addresses the utilization of this stream as a potential carbon source for the production of ligninolytic enzymes (LE). Among six basidiomycetes species, Irpex lacteus and Ganoderma lucidum presented the highest activities of manganese peroxidase (646 ± 122 U L−1) and laccase (1497 ± 161 U L−1), respectively, growing on a medium composed mainly of cellulose fibers, lignin and hemicellulose. The influence of each lignocellulosic fraction on the LE production mechanisms was studied in more detail. The high concentration of phenolic compounds in the hemicellulose-rich stream acted as inducer of LE production, with levels even greater than those of xylose. Acute toxicity tests on Vibrio fischeri revealed a substantial reduction of the toxicity after the fungal treatment (by ca. 12–21 times). The proposed valorization and detoxification of this currently non-exploited and abundant by-product stream is a promising strategy to enhance the industrial feasibility of the organosolv fractionation process.
PB Elsevier
SN 0964-8305
YR 2018
FD 2018-01
LK https://hdl.handle.net/10347/39276
UL https://hdl.handle.net/10347/39276
LA eng
NO María García-Torreiro, José Carlos Martínez-Patiño, Beatriz Gullón, Thelmo A. Lú-Chau, María Teresa Moreira, Juan M. Lema, Gemma Eibes, Simultaneous valorization and detoxification of the hemicellulose rich liquor from the organosolv fractionation, International Biodeterioration & Biodegradation, Volume 126, 2018, Pages 112-118, ISSN 0964-8305, https://doi.org/10.1016/j.ibiod.2017.10.010.
DS Minerva
RD 28 abr 2026