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Arabinosylated phenolics obtained from SO2-steam-pretreated sugarcane bagasse

Carrasco, Cristhian LU ; Solano, Carlos LU ; Penarrieta, Mauricio LU ; Baudel, Henrique; Galbe, Mats LU and Lidén, Gunnar LU (2012) In Journal of Chemical Technology and Biotechnology 87(12). p.1723-1726
Abstract
A pentose-rich hydrolysate fraction obtained by extraction of steam-pretreated sugarcane bagasse was analysed with regard to dissolved phenolics. The liquid obtained after steam pretreatment (2% SO2 (w/w) at 190 ◦C for 5min)was divided into two parts: one containing dissolved compounds originating from hemicellulose (with xylose as the dominating compound), and the other containing predominantly dissolved compounds originating from lignin. Using nuclear magnetic resonance, themain dissolved compounds originating from lignin were identified as the glycosylated aromatics, 5-O-(trans-feruloyl)-L-Arabinofuranose and 5-O-(trans-coumaroyl)-L-Arabinofuranose, together with p-coumaric acid and small amounts of more common free phenolics

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A pentose-rich hydrolysate fraction obtained by extraction of steam-pretreated sugarcane bagasse was analysed with regard to dissolved phenolics. The liquid obtained after steam pretreatment (2% SO2 (w/w) at 190 ◦C for 5min)was divided into two parts: one containing dissolved compounds originating from hemicellulose (with xylose as the dominating compound), and the other containing predominantly dissolved compounds originating from lignin. Using nuclear magnetic resonance, themain dissolved compounds originating from lignin were identified as the glycosylated aromatics, 5-O-(trans-feruloyl)-L-Arabinofuranose and 5-O-(trans-coumaroyl)-L-Arabinofuranose, together with p-coumaric acid and small amounts of more common free phenolics

such as p-hydroxybenzaldehyde, p-hydroxybenzoic acid and vanillin. The phenolic compounds were analysed and quantified using reversed-phase high-performance liquid chromatography. The findings show that SO2 steam explosion opened up new degradation pathways during lignin degradation. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
glycosylated aromatics, sugarcane bagasse, hemicelluloses, lignin, steam pretreatment, SO2
in
Journal of Chemical Technology and Biotechnology
volume
87
issue
12
pages
1723 - 1726
publisher
Wiley-Blackwell
external identifiers
  • wos:000311243600015
  • scopus:84869181553
ISSN
0268-2575
DOI
10.1002/jctb.3855
language
English
LU publication?
yes
id
1611d55e-e880-4761-913c-063e4c17cb1a (old id 3173589)
date added to LUP
2012-11-23 12:56:52
date last changed
2017-01-01 06:33:58
@article{1611d55e-e880-4761-913c-063e4c17cb1a,
  abstract     = {A pentose-rich hydrolysate fraction obtained by extraction of steam-pretreated sugarcane bagasse was analysed with regard to dissolved phenolics. The liquid obtained after steam pretreatment (2% SO2 (w/w) at 190 ◦C for 5min)was divided into two parts: one containing dissolved compounds originating from hemicellulose (with xylose as the dominating compound), and the other containing predominantly dissolved compounds originating from lignin. Using nuclear magnetic resonance, themain dissolved compounds originating from lignin were identified as the glycosylated aromatics, 5-O-(trans-feruloyl)-L-Arabinofuranose and 5-O-(trans-coumaroyl)-L-Arabinofuranose, together with p-coumaric acid and small amounts of more common free phenolics<br/><br>
such as p-hydroxybenzaldehyde, p-hydroxybenzoic acid and vanillin. The phenolic compounds were analysed and quantified using reversed-phase high-performance liquid chromatography. The findings show that SO2 steam explosion opened up new degradation pathways during lignin degradation.},
  author       = {Carrasco, Cristhian and Solano, Carlos and Penarrieta, Mauricio and Baudel, Henrique and Galbe, Mats and Lidén, Gunnar},
  issn         = {0268-2575},
  keyword      = {glycosylated aromatics,sugarcane bagasse,hemicelluloses,lignin,steam pretreatment,SO2},
  language     = {eng},
  number       = {12},
  pages        = {1723--1726},
  publisher    = {Wiley-Blackwell},
  series       = {Journal of Chemical Technology and Biotechnology},
  title        = {Arabinosylated phenolics obtained from SO2-steam-pretreated sugarcane bagasse},
  url          = {http://dx.doi.org/10.1002/jctb.3855},
  volume       = {87},
  year         = {2012},
}