Occurrence of steryl glycosides in eucalypt wood, kraft pulp and process liquids
The occurrence of steryl glycosides (SG) and acyl steryl glycosides (ASG) in Eucalyptus globulus wood was investigated. These compounds were analyzed as their trimethylsilyl ethers by gas chromatography-mass spectrometry (GC/MS). Significant amounts of SG were identified whilst only traces of ASG could be detected. Sitosteryl 3-D-glucopyranoside and sitosteryl (6´-O-palmitoyl)-3-D-glucopyranoside were the major SG and ASG found in E. globulus wood. The presence of SG and ASG was also investigated after kraft cooking by analyzing unbleached pulp and process water samples. The GC/MS results also revealed the presence of sitosteryl 3-D-glucopyranoside in these samples. By contrast, no ASG could be detected after kraft cooking.
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2002-08-26
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Subjects: | Eucalyptus globulus, Sterol glycosides, GC-MS, |
Online Access: | http://hdl.handle.net/10261/86436 |
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dig-irnas-es-10261-864362018-09-12T07:43:52Z Occurrence of steryl glycosides in eucalypt wood, kraft pulp and process liquids Gutiérrez Suárez, Ana Río Andrade, José Carlos del Eucalyptus globulus Sterol glycosides GC-MS The occurrence of steryl glycosides (SG) and acyl steryl glycosides (ASG) in Eucalyptus globulus wood was investigated. These compounds were analyzed as their trimethylsilyl ethers by gas chromatography-mass spectrometry (GC/MS). Significant amounts of SG were identified whilst only traces of ASG could be detected. Sitosteryl 3-D-glucopyranoside and sitosteryl (6´-O-palmitoyl)-3-D-glucopyranoside were the major SG and ASG found in E. globulus wood. The presence of SG and ASG was also investigated after kraft cooking by analyzing unbleached pulp and process water samples. The GC/MS results also revealed the presence of sitosteryl 3-D-glucopyranoside in these samples. By contrast, no ASG could be detected after kraft cooking. This study has been supported by the EU-Contract QLK5-99-1357. We thank ENCE (Pontevedra, Spain) for providing the samples analyzed. A.G. acknowledges a "Ramón y Cajal" contract of the Spanish MCYT. Peer reviewed 2013-11-12T15:33:18Z 2013-11-12T15:33:18Z 2002-08-26 comunicación de congreso http://purl.org/coar/resource_type/c_5794 7th European Workshop on Lignocellulosics and Pulp, Turku/Abo, Finland, pp.233-236. http://hdl.handle.net/10261/86436 en open |
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Eucalyptus globulus Sterol glycosides GC-MS Eucalyptus globulus Sterol glycosides GC-MS |
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Eucalyptus globulus Sterol glycosides GC-MS Eucalyptus globulus Sterol glycosides GC-MS Gutiérrez Suárez, Ana Río Andrade, José Carlos del Occurrence of steryl glycosides in eucalypt wood, kraft pulp and process liquids |
description |
The occurrence of steryl glycosides (SG) and acyl steryl glycosides (ASG) in Eucalyptus globulus wood was investigated. These compounds were analyzed as their trimethylsilyl ethers by gas chromatography-mass spectrometry (GC/MS). Significant amounts of SG were identified whilst only traces of ASG could be detected. Sitosteryl 3-D-glucopyranoside and sitosteryl (6´-O-palmitoyl)-3-D-glucopyranoside were the major SG and ASG found in E. globulus wood. The presence of SG and ASG was also investigated after kraft cooking by analyzing unbleached pulp and process water samples. The GC/MS results also revealed the presence of sitosteryl 3-D-glucopyranoside in these samples. By contrast, no ASG could be detected after kraft cooking. |
format |
comunicación de congreso |
topic_facet |
Eucalyptus globulus Sterol glycosides GC-MS |
author |
Gutiérrez Suárez, Ana Río Andrade, José Carlos del |
author_facet |
Gutiérrez Suárez, Ana Río Andrade, José Carlos del |
author_sort |
Gutiérrez Suárez, Ana |
title |
Occurrence of steryl glycosides in eucalypt wood, kraft pulp and process liquids |
title_short |
Occurrence of steryl glycosides in eucalypt wood, kraft pulp and process liquids |
title_full |
Occurrence of steryl glycosides in eucalypt wood, kraft pulp and process liquids |
title_fullStr |
Occurrence of steryl glycosides in eucalypt wood, kraft pulp and process liquids |
title_full_unstemmed |
Occurrence of steryl glycosides in eucalypt wood, kraft pulp and process liquids |
title_sort |
occurrence of steryl glycosides in eucalypt wood, kraft pulp and process liquids |
publishDate |
2002-08-26 |
url |
http://hdl.handle.net/10261/86436 |
work_keys_str_mv |
AT gutierrezsuarezana occurrenceofsterylglycosidesineucalyptwoodkraftpulpandprocessliquids AT rioandradejosecarlosdel occurrenceofsterylglycosidesineucalyptwoodkraftpulpandprocessliquids |
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