Abstract
The effect of two types of cellulose, microcrystalline cellulose and paper pulp, on enzymatic hydrolysis for cellobiose production was investigated. The particle size, the relative crystallinity index and the water retention value were determined for both celluloses. A previously studied multistage hydrolysis process that proved to enhance the cellobiose production was studied with both types of celluloses. The cellobiose yield exhibited a significant improvement (120% for the microcrystalline cellulose and 75% for the paper pulp) with the multistage hydrolysis process compared to continuous hydrolysis. The conversion of cellulose to cellobiose was greater for the microcrystalline cellulose than for the paper pulp. Even with high crystallinity, microcrystalline cellulose achieved the highest cellobiose yield probably due to its highest specific surface area accessible to enzymes and quantity of adsorbed protein.
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Acknowledgments
This study was financially supported by the Walloon Region (TECHNOSE project no. 716757). We thank Ms. Virginie Byttebier for her excellent assistance.
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Vanderghem, C., Jacquet, N., Danthine, S. et al. Effect of Physicochemical Characteristics of Cellulosic Substrates on Enzymatic Hydrolysis by Means of a Multi-Stage Process for Cellobiose Production. Appl Biochem Biotechnol 166, 1423–1432 (2012). https://doi.org/10.1007/s12010-011-9535-1
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DOI: https://doi.org/10.1007/s12010-011-9535-1