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Hydrolysis of sugarcane bagasse using supercritical carbon dioxide to obtain fermentable sugars
Author(s) -
Benazzi Tássio,
Calgaroto Selma,
Dalla Rosa Clarissa,
Vladimir Oliveira J.,
Mazutti Marcio A.
Publication year - 2013
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.4002
Subject(s) - bagasse , chemistry , supercritical carbon dioxide , carbon dioxide , pulp and paper industry , cellulose , hydrolysis , sugar , yield (engineering) , moisture , solvent , supercritical fluid , waste management , food science , organic chemistry , materials science , engineering , metallurgy
This work evaluates the hydrolysis of sugarcane bagasse using supercritical carbon dioxide to obtain fermentable sugars in a single‐step process. The effects of temperature, pressure, despressurization rate, moisture content and reaction time on the amount of fermentable sugars released were assessed. Results obtained showed the feasibility of adopting the present procedure since it produced about 287 g of fermentable sugars per kg of dry bagasse, which corresponds to 60% yield on the basis of total cellulose. Such a result is very attractive from an industrial viewpoint because there is no use of toxic solvent, solvent removal is completed (no residues), and the method has very low water consumption since the process is a solid–gas reaction. © 2012 Society of Chemical Industry