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Reduced inhibition of enzymatic hydrolysis of steam-pretreated softwood

Tengborg, C; Galbe, Mats LU and Zacchi, Guido LU (2001) In Enzyme and Microbial Technology 28(9-10). p.835-844
Abstract
Softwood constitutes the main source of lignocellulosic material in Sweden which can be used for ethanol production from renewable resources. To make the biomass-to-ethanol process more economically feasible, it is preferable to include the sugar-rich prehydrolysate, i.e. the liquid obtained after the pretreatment step, in the enzymatic hydrolysis of the solid fraction. This study shows that the prehydrolysate inhibits cellulose conversion in the enzymatic hydrolysis step. When the prehydrolysate was included in the enzymatic hydrolysis, the cellulose conversion was reduced by up to 36%. However, this inhibition can be overcome by fermentation of the prehydrolysate prior to enzymatic hydrolysis. (C) 2001 Elsevier Science Inc. All rights... (More)
Softwood constitutes the main source of lignocellulosic material in Sweden which can be used for ethanol production from renewable resources. To make the biomass-to-ethanol process more economically feasible, it is preferable to include the sugar-rich prehydrolysate, i.e. the liquid obtained after the pretreatment step, in the enzymatic hydrolysis of the solid fraction. This study shows that the prehydrolysate inhibits cellulose conversion in the enzymatic hydrolysis step. When the prehydrolysate was included in the enzymatic hydrolysis, the cellulose conversion was reduced by up to 36%. However, this inhibition can be overcome by fermentation of the prehydrolysate prior to enzymatic hydrolysis. (C) 2001 Elsevier Science Inc. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
softwood, spruce, enzymatic hydrolysis, prehydrolysate, inhibition, fermentation
in
Enzyme and Microbial Technology
volume
28
issue
9-10
pages
835 - 844
publisher
Elsevier
external identifiers
  • wos:000169052700014
  • scopus:0035821953
ISSN
0141-0229
DOI
10.1016/S0141-0229(01)00342-8
language
English
LU publication?
yes
id
9a9a1330-6b60-448f-8a1d-604fef7b1ffd (old id 3911296)
date added to LUP
2013-07-01 08:33:57
date last changed
2018-05-29 11:10:41
@article{9a9a1330-6b60-448f-8a1d-604fef7b1ffd,
  abstract     = {Softwood constitutes the main source of lignocellulosic material in Sweden which can be used for ethanol production from renewable resources. To make the biomass-to-ethanol process more economically feasible, it is preferable to include the sugar-rich prehydrolysate, i.e. the liquid obtained after the pretreatment step, in the enzymatic hydrolysis of the solid fraction. This study shows that the prehydrolysate inhibits cellulose conversion in the enzymatic hydrolysis step. When the prehydrolysate was included in the enzymatic hydrolysis, the cellulose conversion was reduced by up to 36%. However, this inhibition can be overcome by fermentation of the prehydrolysate prior to enzymatic hydrolysis. (C) 2001 Elsevier Science Inc. All rights reserved.},
  author       = {Tengborg, C and Galbe, Mats and Zacchi, Guido},
  issn         = {0141-0229},
  keyword      = {softwood,spruce,enzymatic hydrolysis,prehydrolysate,inhibition,fermentation},
  language     = {eng},
  number       = {9-10},
  pages        = {835--844},
  publisher    = {Elsevier},
  series       = {Enzyme and Microbial Technology},
  title        = {Reduced inhibition of enzymatic hydrolysis of steam-pretreated softwood},
  url          = {http://dx.doi.org/10.1016/S0141-0229(01)00342-8},
  volume       = {28},
  year         = {2001},
}