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Determination of pectin content of eucalyptus wood

  • Berdine Coetzee , Henk A. Schols und Francois Wolfaardt EMAIL logo
Veröffentlicht/Copyright: 25. Februar 2011
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Holzforschung
Aus der Zeitschrift Band 65 Heft 3

Abstract

Very little is known about the occurrence of pectin in wood and it is speculated that between 10 mg g-1 and 40 mg g-1 of wood consists of pectin. The present study aimed to quantify pectin in eucalyptus wood and to determine the influence of tree species, yield potential of the site, tree age class and wood tissue type on its occurrence. Wood was hydrolysed using the Saeman procedure and the neutral and acidic monosaccharides quantified with high-performance liquid chromatography (HPLC). The d-galacturonic acid was the predominant pectic monosaccharide followed by d-galactose, l-arabinose and l-rhamnose. Through the addition of all pectic monosaccharides, it was determined that eucalyptus wood contained between 15.2 mg g-1 and 25.8 mg g-1 pectin. Wood tissue type had a major influence on the total pectin content of the samples. The cambium contained the highest concentration of pectin, reflecting more active growth. These results contribute to the understanding of wood biochemistry and can be useful in the industries producing biofuels or paper.


Corresponding author. Sappi Technology Centre, P.O. Box 6, The Innovation Hub, Pretoria 0087, South Africa

Received: 2010-9-7
Accepted: 2011-1-14
Published Online: 2011-02-25
Published Online: 2011-02-25
Published in Print: 2011-05-01

©2011 by Walter de Gruyter Berlin New York

Artikel in diesem Heft

  1. Publisher’s Note
  2. Publisher’s Note
  3. ORIGINAL ARTICLES
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  5. MgSO4 vs. Mg(OH)2 as a cellulose protector in oxygen delignification
  6. Hydrogen peroxide and supercritical carbon dioxide: a new bleaching stage for Eucalyptus kraft-O2 pulps
  7. Preparation and physical characterization of strongly swellable oligo(oxyethylene) lignin hydrogels
  8. Activation of pine kraft lignin by Fenton-type oxidation for cross-linking with oligo(oxyethylene) diglycidyl ether
  9. Determination of pectin content of eucalyptus wood
  10. Theory of transport processes in wood below the fiber saturation point. Physical background on the microscale and its macroscopic description
  11. The effect of galactan content on the mechano-sorptive strain in loblolly pine
  12. Genetic and environmental variation in heartwood colour of Australian blackwood (Acacia melanoxylon R.Br.)
  13. Aging of wood: Analysis of color changes during natural aging and heat treatment
  14. Thermal behaviour of Norway spruce and European beech in and between the principal anatomical directions
  15. Air-coupled ultrasound inspection of glued laminated timber
  16. Optical characteristics of wood investigated by time-of-flight near infrared spectroscopy
  17. Comparison of NDE techniques for assessing mechanical properties of unjointed and finger-jointed lumber
  18. Potential of pulp and paper sludge as a formaldehyde scavenger agent in MDF resins
  19. FT-IR imaging microscopy to localise and characterise simultaneous and selective white-rot decay within spruce wood cells
  20. Effects of ionic strength, monoethanolamine, copper, and pH on adsorption of alkyl dimethyl benzyl ammonium chloride in wood
  21. Long-term performance of fused borate rods for limiting internal decay in Douglas-fir utility poles
  22. SHORT NOTE
  23. Composition of the heartwood essential oil of incense cedar (Calocedrus decurrens Torr.)
  24. Meetings
  25. Meetings
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