Hydrodynamic cavitation-assisted alkaline pretreatment as a new approach for sugarcane bagasse biorefineries

No hay miniatura disponible
Terán Hilares R.
dos Santos J.C.
Ahmed M.A.
Jeon S.H.
da Silva S.S.
Han J.-I.
Título de la revista
Revista ISSN
Título del volumen
Elsevier Ltd
Proyectos de investigación
Unidades organizativas
Número de la revista
Hydrodynamic cavitation (HC) was employed in order to improve the efficiency of alkaline pretreatment of sugarcane bagasse (SCB). Response surface methodology (RSM) was used to optimize pretreatment parameters: NaOH concentration (0.1–0.5 M), solid/liquid ratio (S/L, 3–10%) and HC time (15–45 min), in terms of glucan content, lignin removal and enzymatic digestibility. Under an optimal HC condition (0.48 M of NaOH, 4.27% of S/L ratio and 44.48 min), 52.1% of glucan content, 60.4% of lignin removal and 97.2% of enzymatic digestibility were achieved. Moreover, enzymatic hydrolysis of the pretreated SCB resulted in a yield 82% and 30% higher than the untreated and alkaline-treated controls, respectively. HC was found to be a potent and promising approach to pretreat lignocellulosic biomass.
The authors gratefully acknowledge the Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica (CONCYTEC/CIENCIACTIVA-Peru, Process number 219-2014/247-2015), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq-Brazil, process number 449609/2014-6) and the National Research Foundation of Korea (2012M1A2A2026587) funded by the Korea government Ministry of Education, Science and Technology for financial support.
Palabras clave
X ray diffraction, Bagasse, Cavitation, Fluid dynamics, Hydrodynamics, Lignin, Surface properties, Alkaline pretreatment, Enzymatic digestibility, Hydrodynamic cavitations, Response surface methodology, Sugar-cane bagasse, Enzymatic hydrolysis, bagasse, glucan, lignin, bagasse, cellulose, sodium hydroxide, alkaline environment, assessment method, biodegradation, cavitation, concentration (composition), enzyme activity, hydrodynamics, lignin, phytomass, refining industry, sugar cane, surface area, Article, biomass, controlled study, delignification, hydrolysis, priority journal, reaction time, response surface method, scanning electron microscopy, sugarcane, time, biotechnology, chemistry, heat, hydrodynamics, microbubble, pressure, procedures, sugarcane, vapor pressure, Bagasse, Cavitation, Enzymatic Activity, Sugar Cane, Biomass, Biotechnology, Cellulose, Hot Temperature, Hydrolysis, Microbubbles, Pressure, Saccharum, Sodium Hydroxide, Vapor Pressure