skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Comparison of autohydrolysis and ionic liquid 1-butyl-3-methylimidazolium acetate pretreatment to enhance enzymatic hydrolysis of sugarcane bagasse

Journal Article · · Bioresource Technology
 [1];  [2];  [2];  [1];  [2];  [2]
  1. Quaid-i-Azam Univ., Islamabad (Pakistan)
  2. Univ. of Tennessee, Knoxville, TN (United States)

The goal of this work was to evaluate the efficacy of an ionic liquid (IL) 1-butyl-3-methylimidazolium acetate ([C4mim][OAc]) pretreatment (110 °C for 30 min) in comparison to high severity autohydrolysis pretreatment in terms of delignification, cellulose crystallinity and enzymatic digestibility. The increase in severity of autohydrolysis pretreatment had positive effect on glucan digestibility, but was limited by the crystallinity of cellulose. [C4mim][OAc] pretreated sugarcane bagasse exhibited a substantial decrease in lignin content, reduced cellulose crystallinity, and enhanced glucan and xylan digestibility. Glucan and xylan digestibility was determined as 97.4% and 98.6% from [C4mim][OAc] pretreated bagasse, and 62.1% and 57.5% from the bagasse autohydrolyzed at 205 °C for 6 min, respectively. The results indicated the improved digestibility and hydrolysis rates after [C4mim][OAc] pretreatment when compared against a comparable autohydrolyzed biomass.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Joint Institute for Biological Sciences (JIBS)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1341584
Alternate ID(s):
OSTI ID: 1376571
Journal Information:
Bioresource Technology, Vol. 224; ISSN 0960-8524
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 42 works
Citation information provided by
Web of Science

References (39)

Saccharification of ionic-liquid-pretreated sugar cane bagasse using Penicillium echinulatum enzymes journal September 2014
Production of fermentable sugars from sugarcane bagasse by enzymatic hydrolysis after autohydrolysis and mechanical refining journal March 2015
Effect of [Emim]Ac pretreatment on the structure and enzymatic hydrolysis of sugarcane bagasse cellulose journal January 2014
Enzymic saccharification of sugarcane bagasse pretreated by autohydrolysis-steam explosion journal December 1983
Enhancing the enzymatic digestibility of sugarcane bagasse through the application of an ionic liquid in combination with an acid catalyst journal September 2011
Enhancement of enzymatic saccharification of sugarcane bagasse by liquid hot water pretreatment journal September 2013
Pretreatment and Lignocellulosic Chemistry journal May 2012
Dilute H 2 SO 4 and SO 2 pretreatments of Loblolly pine wood residue for bioethanol production journal February 2012
Sugarcane bagasse pretreatment using three imidazolium-based ionic liquids; mass balances and enzyme kinetics journal January 2012
Autohydrolysis pretreatment of Coastal Bermuda grass for increased enzyme hydrolysis journal December 2009
Lignin depolymerization/repolymerization and its critical role for delignification of aspen wood by steam explosion journal November 2007
Comparison of dilute acid and ionic liquid pretreatment of switchgrass: Biomass recalcitrance, delignification and enzymatic saccharification journal July 2010
Improving enzymatic hydrolysis of wheat straw using ionic liquid 1-ethyl-3-methyl imidazolium diethyl phosphate pretreatment journal July 2009
Dissolution of lignocellulosic materials and its constituents using ionic liquids—A review journal November 2010
Enzyme loading dependence of cellulose hydrolysis of sugarcane bagasse journal January 2012
Optimization of pH controlled liquid hot water pretreatment of corn stover journal December 2005
Ionic liquid/ultrasound pretreatment and in situ enzymatic saccharification of bagasse using biocompatible cholinium ionic liquid journal January 2015
Optimization of hydrothermal pretreatment of wheat straw for production of bioethanol at low water consumption without addition of chemicals journal May 2009
Integration of pulp and paper technology with bioethanol production journal January 2013
Native Cellulose: Structure, Characterization and Thermal Properties journal August 2014
Pretreatment of energy cane bagasse with recycled ionic liquid for enzymatic hydrolysis journal February 2013
Effect of ionic liquid pretreatment on the chemical composition, structure and enzymatic hydrolysis of energy cane bagasse journal August 2012
Development and Characterization of an Environmentally Friendly Process Sequence (Autohydrolysis and Organosolv) for Wheat Straw Delignification journal January 2011
Pseudo-lignin and pretreatment chemistry journal January 2011
Major improvement in the rate and yield of enzymatic saccharification of sugarcane bagasse via pretreatment with the ionic liquid 1-ethyl-3-methylimidazolium acetate ([Emim] [Ac]) journal November 2011
Supercritical carbon dioxide combined with 1-butyl-3-methylimidazolium acetate and ethanol for the pretreatment and enzymatic hydrolysis of sugarcane bagasse journal September 2015
Coupled enzymatic hydrolysis and ethanol fermentation: ionic liquid pretreatment for enhanced yields journal September 2015
Effect of lignin content on changes occurring in poplar cellulose ultrastructure during dilute acid pretreatment journal October 2014
Comparison of changes in cellulose ultrastructure during different pretreatments of poplar journal May 2014
Hydrolysis of lignocellulosic materials for ethanol production: a review journal May 2002
Low liquid–solid ratio (LSR) hot water pretreatment of sugarcane bagasse journal January 2012
Analysis of by-product formation and sugar monomerization in sugarcane bagasse pretreated at pilot plant scale: Differences between autohydrolysis, alkaline and acid pretreatment journal April 2015
Effect of Structural Changes on Enzymatic Hydrolysis of Eucalyptus, Sweet Sorghum Bagasse, and Sugarcane Bagasse After Liquid hot Water Pretreatment journal February 2012
The study of factors affecting the enzymatic hydrolysis of cellulose after ionic liquid pretreatment journal February 2012
Fuel ethanol production from Eucalyptus globulus wood by autocatalized organosolv pretreatment ethanol-water and SSF : Ethanol fuel production from journal August 2012
Pretreatment of sugarcane bagasse with liquid hot water and aqueous ammonia journal September 2013
Effects of pH on pretreatment of sugarcane bagasse using aqueous imidazolium ionic liquids journal January 2013
Pretreatment of sugarcane bagasse by acid-catalysed process in aqueous ionic liquid solutions journal September 2012
Ionic liquids-based hydrolysis of Chlorella biomass for fermentable sugars journal August 2012

Cited By (4)