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The effect of water-soluble inhibitors from steam-pretreated willow on enzymatic hydrolysis and ethanol fermentation

Palmqvist, E; Hahn-Hägerdal, Bärbel LU ; Galbe, Mats LU and Zacchi, Guido LU (1996) In Enzyme and Microbial Technology 19(6). p.470-476
Abstract
In the process of producing ethanol from lignocellulosic materials, compounds inhibitory to enzymatic hydrolysis and fermentation are generated during the pretreatment of the wood. In an industrial process, these compounds will accumulate due to the recirculation of process streams. The inhibitory effects of the accumulation of volatile and nonvolatile compounds released during stream pretreatment on enzymatic hydrolysis and fermentation were studied. The volatile compounds did not affect either the enzymatic hydrolysis or the fermentation significantly even at high concentrations. In contrast, the nonvolatile compounds severely affected both the hydrolysis and the fermentation: the effect was more pronounced in the latter case. For the... (More)
In the process of producing ethanol from lignocellulosic materials, compounds inhibitory to enzymatic hydrolysis and fermentation are generated during the pretreatment of the wood. In an industrial process, these compounds will accumulate due to the recirculation of process streams. The inhibitory effects of the accumulation of volatile and nonvolatile compounds released during stream pretreatment on enzymatic hydrolysis and fermentation were studied. The volatile compounds did not affect either the enzymatic hydrolysis or the fermentation significantly even at high concentrations. In contrast, the nonvolatile compounds severely affected both the hydrolysis and the fermentation: the effect was more pronounced in the latter case. For the effective use of a lignocellulosic material as a substrate for ethanol production, the nonvolatile compounds must thus be removed. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
ethanol production, lignocellulosic material, inhibitors, enzymatic, hydrolysis, fermentation
in
Enzyme and Microbial Technology
volume
19
issue
6
pages
470 - 476
publisher
Elsevier
external identifiers
  • wos:A1996VL25700009
  • scopus:0030298129
ISSN
0141-0229
DOI
10.1016/S0141-0229(95)00234-0
language
English
LU publication?
yes
id
1a7eb22e-1c48-4c6f-85ca-cedaf5d3c44b (old id 3911515)
date added to LUP
2013-06-28 13:30:40
date last changed
2017-05-28 03:28:36
@article{1a7eb22e-1c48-4c6f-85ca-cedaf5d3c44b,
  abstract     = {In the process of producing ethanol from lignocellulosic materials, compounds inhibitory to enzymatic hydrolysis and fermentation are generated during the pretreatment of the wood. In an industrial process, these compounds will accumulate due to the recirculation of process streams. The inhibitory effects of the accumulation of volatile and nonvolatile compounds released during stream pretreatment on enzymatic hydrolysis and fermentation were studied. The volatile compounds did not affect either the enzymatic hydrolysis or the fermentation significantly even at high concentrations. In contrast, the nonvolatile compounds severely affected both the hydrolysis and the fermentation: the effect was more pronounced in the latter case. For the effective use of a lignocellulosic material as a substrate for ethanol production, the nonvolatile compounds must thus be removed.},
  author       = {Palmqvist, E and Hahn-Hägerdal, Bärbel and Galbe, Mats and Zacchi, Guido},
  issn         = {0141-0229},
  keyword      = {ethanol production,lignocellulosic material,inhibitors,enzymatic,hydrolysis,fermentation},
  language     = {eng},
  number       = {6},
  pages        = {470--476},
  publisher    = {Elsevier},
  series       = {Enzyme and Microbial Technology},
  title        = {The effect of water-soluble inhibitors from steam-pretreated willow on enzymatic hydrolysis and ethanol fermentation},
  url          = {http://dx.doi.org/10.1016/S0141-0229(95)00234-0},
  volume       = {19},
  year         = {1996},
}