Advanced

Enhancement of the enzymatic digestibility of sugarcane bagasse by steam pretreatment impregnated with hydrogen peroxide.

Rabelo, Sarita Cândida; Vaz Rossell, Carlos Eduardo; de Moraes Rocha, George Jackson and Zacchi, Guido LU (2012) In Biotechnology Progress 28(5). p.1207-1217
Abstract
Sugarcane bagasse was subjected to steam pretreatment impregnated with hydrogen peroxide. Analyses were performed using 2(3) factorial designs and enzymatic hydrolysis was performed at two different solid concentrations and with washed and unwashed material to evaluate the importance of this step for obtaining high cellulose conversion. Similar cellulose conversion were obtained at different conditions of pretreatment and hydrolysis. When the cellulose was hydrolyzed using the pretreated material in the most severe conditions of the experimental design (210°C, 15 min and 1.0% hydrogen peroxide), and using 2% (w/w) water-insoluble solids (WIS), and 15 FPU/g WIS, the cellulose conversion was 86.9%. In contrast, at a milder pretreatment... (More)
Sugarcane bagasse was subjected to steam pretreatment impregnated with hydrogen peroxide. Analyses were performed using 2(3) factorial designs and enzymatic hydrolysis was performed at two different solid concentrations and with washed and unwashed material to evaluate the importance of this step for obtaining high cellulose conversion. Similar cellulose conversion were obtained at different conditions of pretreatment and hydrolysis. When the cellulose was hydrolyzed using the pretreated material in the most severe conditions of the experimental design (210°C, 15 min and 1.0% hydrogen peroxide), and using 2% (w/w) water-insoluble solids (WIS), and 15 FPU/g WIS, the cellulose conversion was 86.9%. In contrast, at a milder pretreatment condition (190°C, 15 min and 0.2% hydrogen peroxide) and industrially more realistic conditions of hydrolysis (10% WIS and 10 FPU/g WIS), the cellulose conversion reached 82.2%. The step of washing the pretreated material was very important to obtain high concentrations of fermentable sugars. © 2012 American Institute of Chemical Engineers Biotechnol. Prog., 2012. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Biotechnology Progress
volume
28
issue
5
pages
1207 - 1217
publisher
The American Chemical Society
external identifiers
  • wos:000309718200010
  • pmid:22753357
  • scopus:84867401319
ISSN
1520-6033
DOI
10.1002/btpr.1593
language
English
LU publication?
yes
id
84e1ecef-ab22-4d1f-b0b8-9742a70054dd (old id 2967579)
date added to LUP
2012-09-10 09:46:53
date last changed
2017-02-05 03:55:36
@article{84e1ecef-ab22-4d1f-b0b8-9742a70054dd,
  abstract     = {Sugarcane bagasse was subjected to steam pretreatment impregnated with hydrogen peroxide. Analyses were performed using 2(3) factorial designs and enzymatic hydrolysis was performed at two different solid concentrations and with washed and unwashed material to evaluate the importance of this step for obtaining high cellulose conversion. Similar cellulose conversion were obtained at different conditions of pretreatment and hydrolysis. When the cellulose was hydrolyzed using the pretreated material in the most severe conditions of the experimental design (210°C, 15 min and 1.0% hydrogen peroxide), and using 2% (w/w) water-insoluble solids (WIS), and 15 FPU/g WIS, the cellulose conversion was 86.9%. In contrast, at a milder pretreatment condition (190°C, 15 min and 0.2% hydrogen peroxide) and industrially more realistic conditions of hydrolysis (10% WIS and 10 FPU/g WIS), the cellulose conversion reached 82.2%. The step of washing the pretreated material was very important to obtain high concentrations of fermentable sugars. © 2012 American Institute of Chemical Engineers Biotechnol. Prog., 2012.},
  author       = {Rabelo, Sarita Cândida and Vaz Rossell, Carlos Eduardo and de Moraes Rocha, George Jackson and Zacchi, Guido},
  issn         = {1520-6033},
  language     = {eng},
  number       = {5},
  pages        = {1207--1217},
  publisher    = {The American Chemical Society},
  series       = {Biotechnology Progress},
  title        = {Enhancement of the enzymatic digestibility of sugarcane bagasse by steam pretreatment impregnated with hydrogen peroxide.},
  url          = {http://dx.doi.org/10.1002/btpr.1593},
  volume       = {28},
  year         = {2012},
}