Produção Nacional
Enzymatic Cellulose Hydrolysis for Glucose Obtainment Using Ionic Liquid as a Solvent Medium
2019; Brazilian Society of Chemistry; Volume: 11; Issue: 1 Linguagem: Inglês
10.21577/1984-6835.20190022
ISSN1984-6835
AutoresThaysi Castro Coelho Andrade, Waldo Coelho Bitencourt, Fabrícia Vieira Silva Bomtempo, Filipe Alves, Robson dos Santos Barbosa, Emerson Adriano Guarda,
Tópico(s)Agricultural and Food Sciences
ResumoCellulose is one of the main constituents of the wall of a plant cell, and its complete hydrolysis produces glucose.Cellulases are the enzymes responsible for the degradation of cellulose.The condition in which such reactions usually develop occurs in organic solvents and water.In the present work the ionic liquids, substances that are completely constituted by ions and are in the liquid state at room temperature.The enzymes Cellic CTec2 and HTec2 (Noozymes ®) were used in the hydrolysis reactions of cellulose obtained from three types of biomass: sugarcane bagasse, elephantgrass and wood sawdust (red angelim).All the biomasses were submitted to a pretreatment so that the enzymes had greater accessibility to the cellulose.It was verified the existence of alterations caused by the presence of the ionic liquids in the hydrolysis reaction, being possible to affirm that the use of this methodology in the search of a more advantageous process to obtain glucose did not represent an increase in the glucose contents obtained after the hydrolysis.The most promising ionic liquid was the ([BMIM + ] [BF4 -]) interacted with sugarcane, reaching a yield of 57.7 % for 72 hours of hydrolysis reaction.
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