Title Influence of fluid dynamic conditions on enzymatic hydrolysis of lignocellulosic biomass: Effect of mass transfer rate.
Authors Wojtusik, Mateusz , ZURITA GOTOR, MAURICIO, Villar, Juan C , Ladero, Miguel , Garcia-Ochoa, Felix
External publication No
Means Bioresour Technol
Scope Article
Nature Científica
JCR Quartile 1
SJR Quartile 1
JCR Impact 5.65100
SJR Impact 2.21500
Area International
Publication date 01/09/2016
DOI 10.1016/j.biortech.2016.05.042
Abstract The effect of fluid dynamic conditions on enzymatic hydrolysis of acid pretreated corn stover (PCS) has been assessed. Runs were performed in stirred tanks at several stirrer speed values, under typical conditions of temperature (50°C), pH (4.8) and solid charge (20% w/w). A complex mixture of cellulases, xylanases and mannanases was employed for PCS saccharification. At low stirring speeds (<150rpm), estimated mass transfer coefficients and rates, when compared to chemical hydrolysis rates, lead to results that clearly show low mass transfer rates, being this phenomenon the controlling step of the overall process rate. However, for stirrer speed from 300rpm upwards, the overall process rate is controlled by hydrolysis reactions. The ratio between mass transfer and overall chemical reaction rates changes with time depending on the conditions of each run.
Keywords Enzymatic hydrolysis, Fluid dynamic, Lignocellulosic biomass, Mass transfer, Stirrer speed
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