Treatment with lignin residue - A novel method for detoxification of lignocellulose hydrolysates
(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:
https://lup.lub.lu.se/record/339704
- author
- Björklund, Linda ; Larsson, Simona ; Jonsson, Leif LU ; Reimann, A and Nilvebrant, NO
- organization
- publishing date
- 2002
- 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
- 2016-04-01 11:42:39
- date last changed
- 2022-04-20 20:41:23
@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}}, keywords = {{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}}, doi = {{10.1385/ABAB:98-100:1-9:563}}, volume = {{98}}, year = {{2002}}, }