Advanced

Treatment with lignin residue - A novel method for detoxification of lignocellulose hydrolysates

Björklund, Linda; Larsson, Simona; Jonsson, Leif LU ; Reimann, A and Nilvebrant, NO (2002) In Applied Biochemistry and Biotechnology 98. p.563-575
Abstract
Acid hydrolysis of lignocellulose to hydrolysates intended for production of fuel ethanol results in the formation of byproducts in addition to fermentable sugars. Some of the byproducts, such as phenolic compounds and furan aldehydes, are inhibitory to the fermenting microorganism. Detoxification of the hydrolysates may be necessary for production of ethanol at a satisfactory rate and yield. The lignin residue obtained after hydrolysis is a material with hydrophobic properties that is produced in large amounts as a byproduct within an ethanol production process based on lignocellulosic raw materials. We have explored the possibility of using this lignin residue for detoxification of spruce dilute-acid hydrolysates prior to fermentation... (More)
Acid hydrolysis of lignocellulose to hydrolysates intended for production of fuel ethanol results in the formation of byproducts in addition to fermentable sugars. Some of the byproducts, such as phenolic compounds and furan aldehydes, are inhibitory to the fermenting microorganism. Detoxification of the hydrolysates may be necessary for production of ethanol at a satisfactory rate and yield. The lignin residue obtained after hydrolysis is a material with hydrophobic properties that is produced in large amounts as a byproduct within an ethanol production process based on lignocellulosic raw materials. We have explored the possibility of using this lignin residue for detoxification of spruce dilute-acid hydrolysates prior to fermentation with Saccharomyces cerevisiae. Three dilute-acid hydrolysates of spruce were treated with lignin residue, which in all cases resulted in improved fermentability in terms of productivity and yield of ethanol. The effect was improved by washing the lignin before treatment, by using larger amounts of lignin in the treatment, and by performing the treatment at low temperature. Treatment with the lignin residue removed up to 53% of the phenolic compounds and up to 68% of the furan aldehydes in a spruce dilute-acid hydrolysate. A larger fraction of furfural was removed compared to the less hydrophobic 5-hydroxymethylfurfural. (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
Saccharomyces cerevisiae, lignin, detoxification, inhibitors, ethanol, lignocellulose
in
Applied Biochemistry and Biotechnology
volume
98
pages
563 - 575
publisher
Humana Press
external identifiers
  • wos:000175257800050
  • scopus:0036240362
ISSN
1559-0291
DOI
10.1385/ABAB:98-100:1-9:563
language
English
LU publication?
yes
id
ebb4fba3-4886-4ba0-b86b-45b90074fbf6 (old id 339704)
date added to LUP
2007-08-10 10:56:01
date last changed
2017-05-14 03:26:57
@article{ebb4fba3-4886-4ba0-b86b-45b90074fbf6,
  abstract     = {Acid hydrolysis of lignocellulose to hydrolysates intended for production of fuel ethanol results in the formation of byproducts in addition to fermentable sugars. Some of the byproducts, such as phenolic compounds and furan aldehydes, are inhibitory to the fermenting microorganism. Detoxification of the hydrolysates may be necessary for production of ethanol at a satisfactory rate and yield. The lignin residue obtained after hydrolysis is a material with hydrophobic properties that is produced in large amounts as a byproduct within an ethanol production process based on lignocellulosic raw materials. We have explored the possibility of using this lignin residue for detoxification of spruce dilute-acid hydrolysates prior to fermentation with Saccharomyces cerevisiae. Three dilute-acid hydrolysates of spruce were treated with lignin residue, which in all cases resulted in improved fermentability in terms of productivity and yield of ethanol. The effect was improved by washing the lignin before treatment, by using larger amounts of lignin in the treatment, and by performing the treatment at low temperature. Treatment with the lignin residue removed up to 53% of the phenolic compounds and up to 68% of the furan aldehydes in a spruce dilute-acid hydrolysate. A larger fraction of furfural was removed compared to the less hydrophobic 5-hydroxymethylfurfural.},
  author       = {Björklund, Linda and Larsson, Simona and Jonsson, Leif and Reimann, A and Nilvebrant, NO},
  issn         = {1559-0291},
  keyword      = {Saccharomyces cerevisiae,lignin,detoxification,inhibitors,ethanol,lignocellulose},
  language     = {eng},
  pages        = {563--575},
  publisher    = {Humana Press},
  series       = {Applied Biochemistry and Biotechnology},
  title        = {Treatment with lignin residue - A novel method for detoxification of lignocellulose hydrolysates},
  url          = {http://dx.doi.org/10.1385/ABAB:98-100:1-9:563},
  volume       = {98},
  year         = {2002},
}