effects of lignin removal and drying on the porosity and enzymatic hydrolysis of sugarcane bagasse

effects of lignin removal and drying on the porosity and enzymatic hydrolysis of sugarcane bagasse

The porosity of lignocellulosic materials is a key feature for the enzymatic hydrolysis of the constituent polysaccharides, being affected by its drying and lignin content. Here we evaluated the influence of both parameters in the porosity of sugarcane bagasse, using raw and chlorite-delignified sam...

Full description

Saved in:
Bibliographic Details
Published in:Cellulose (London) Vol. 20; no. 6; pp. 3165 - 3177
Main Authors: Junior, Celso Santi, Milagres, Adriane Maria Ferreira, Ferraz, André, Carvalho, Walter
Format: Journal Article
Language:English
Published: Dordrecht Springer-Verlag 01-12-2013
Springer Netherlands
Springer Nature B.V
Subjects:
air
Bagasse
Bioorganic Chemistry
Ceramics
Chemistry
Chemistry and Materials Science
Composites
Constituents
Drying
enzymatic hydrolysis
enzymes
Glass
Hydrolysis
Lignin
Lignocellulose
Natural Materials
Organic Chemistry
Original Paper
Physical Chemistry
Polymer Sciences
Polysaccharides
Porometry
Porosity
Saccharification
solutes
Sugarcane
sugarcane bagasse
Sustainable Development
temperature
Delignification
Porosity
Enzymatic saccharification
Sugarcane bagasse
Drying
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The porosity of lignocellulosic materials is a key feature for the enzymatic hydrolysis of the constituent polysaccharides, being affected by its drying and lignin content. Here we evaluated the influence of both parameters in the porosity of sugarcane bagasse, using raw and chlorite-delignified samples. A fraction of these samples was air dried at room temperature and the remainder one was kept wet. All the samples were subjected to porometry (solute exclusion technique), determination of water retention value and assessment of enzymatic saccharification of polysaccharides. Samples with higher lignin contents had lower porosities and exhibited worse enzymatic conversions of polysaccharides. Mild drying collapsed only the smaller pores, which already were inaccessible to enzymes, and therefore did not affect the efficiencies of saccharification. Our results show that the lignin content plays an important role in the porosity of the material and that its removal improves the enzymatic saccharification of the constituent polysaccharides.
Bibliography:http://dx.doi.org/10.1007/s10570-013-0032-2
ISSN:0969-0239
1572-882X
DOI:10.1007/s10570-013-0032-2