Chemical composition of different eucalyptus wood species used for paper pulp manufacturing.
A thorough chemical characterization of the woods from different eucalypt species, such as Eucalyptus globulus, E. nitens, E. maidenii, E. grandis and E. dunnii, used for paper pulp manufacturing was performed, with especial emphasis in the lignin and lipophilic fractions. The lignin, analyzed by pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS), presented a predominance of syringyl (S) over guaiacyl (G) lignin units, with a S/G ratio in the range from 3.6 to 4.8, being the highest value for the E. globulus wood. The lipid fraction, analyzed by GC and GC/MS, was dominated by sitosterol, sitosterol esters and sitosterol 3-D-glucopyranoside. The wood from E. globulus presented the lowest amounts of these pitch-forming compounds.
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| Main Authors: | , , |
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| Format: | comunicación de congreso biblioteca |
| Language: | English |
| Published: |
2006-08-27
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| Subjects: | Eucalyptus wood, Papermaking, Lipids, Lignin, |
| Online Access: | http://hdl.handle.net/10261/86415 |
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