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Formation of Aliphatic Carboxylic Acids during Soda-AQ Pulping of Kenaf Bark

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Published/Copyright: June 1, 2005
Holzforschung
From the journal Volume 56 Issue 4

Summary

The formation of aliphatic carboxylic acids during soda-AQ pulping of kenaf bark was studied. In addition to formic and acetic acids, a variety of hydroxy monocarboxylic and dicarboxylic acids were monitored. The results showed that the formation of hydroxy acids and formic acid significantly depend, in contrast to acetic acid, on the cooking conditions employed. Detailed gas chromatographic studies revealed that the most abundant hydroxy carboxylic acids were glucoisosaccharinic, lactic, glycolic, 3-deoxypentonic, 2-hydroxybutanoic, xyloisosaccharinic, 3,4-dideoxypentonic, 2-hydroxyglutaric, and glucoisosaccharinaric acids. The total amount of aliphatic carboxylic acids corresponded to 12–16% of o.d. kenaf bark.

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Published Online: 2005-06-01
Published in Print: 2002-06-27

Copyright © 2002 by Walter de Gruyter GmbH & Co. KG

Articles in the same Issue

  1. Characteristics of Attack of Coastal Timbers by Pselactus spadix (Herbst) (Col.: Curc.: Cossoninae) and an Investigation of its Life History
  2. Bacterial Cellulose Production Using Monosaccharides Derived from Hemicelluloses in Water-Soluble Fraction of Waste Liquor from Atmospheric Acetic Acid Pulping
  3. Birch (Betula pendula) Wood Discolouration during Drying. Effect of Environmental Factors and Wood Location in the Trunk
  4. Immuno Electron Microscopic Localization of Peroxidases in the Differentiating Xylem of Populus spp.
  5. Vanilloyl Acetic Acid as an Unstable Intermediate from β-Hydroxypropiovanillone to Acetovanillone
  6. Study of Lewis Acid-Base Properties of Wood by Contact Angle Analysis
  7. Lipophilic Extractives of the Inner and Outer Barks of Eucalyptus globulus
  8. Thick-Target PIXE Analysis of Trace Elements in Wood Incoming to a Pulp Mill
  9. Formation of Aliphatic Carboxylic Acids during Soda-AQ Pulping of Kenaf Bark
  10. Comparing Mechanical Properties of Normal and Compression Wood in Norway Spruce: The Role of Lignin in Compression Parallel to the Grain
  11. Oxidative Ammonolysis of Technical Lignins. Part 3. Effect of Temperature on the Reaction Rate
  12. The Erythro/Threo Ratio of β-O-4 Structures as an Important Structural Characteristic of Lignin. Part 2. Changes in Erythro/Threo (E/T) Ratio of β-O-4 Structures during Delignification Reactions
  13. The Effect of HS- Ions in 1-mol/l NaOH Solutions on the Ion Diffusion in Wood Calculated as the Steady State Diffusion and the Drift Speed
  14. Industrial Kiln Drying and its Effect on Microstructure, Impregnation and Properties of Scots Pine Timber Impregnated for Above Ground Use. Part 1. Effects of Initial, Final Dryings and Preservative on Impregnation and Timber Quality
  15. Industrial Kiln Drying and its Effect on Microstructure, Impregnation and Properties of Scots Pine Timber Impregnated for Above Ground Use. Part 2. Effect of Drying on Microstructure and Some Mechanical Properties of Scots Pine Wood
  16. Study on Gypsum-Bonded Particleboard Reinforced with Jute Fibres
  17. Literature Reports
https://doi.org/10.1515/HF.2002.061

Articles in the same Issue

  1. Characteristics of Attack of Coastal Timbers by Pselactus spadix (Herbst) (Col.: Curc.: Cossoninae) and an Investigation of its Life History
  2. Bacterial Cellulose Production Using Monosaccharides Derived from Hemicelluloses in Water-Soluble Fraction of Waste Liquor from Atmospheric Acetic Acid Pulping
  3. Birch (Betula pendula) Wood Discolouration during Drying. Effect of Environmental Factors and Wood Location in the Trunk
  4. Immuno Electron Microscopic Localization of Peroxidases in the Differentiating Xylem of Populus spp.
  5. Vanilloyl Acetic Acid as an Unstable Intermediate from β-Hydroxypropiovanillone to Acetovanillone
  6. Study of Lewis Acid-Base Properties of Wood by Contact Angle Analysis
  7. Lipophilic Extractives of the Inner and Outer Barks of Eucalyptus globulus
  8. Thick-Target PIXE Analysis of Trace Elements in Wood Incoming to a Pulp Mill
  9. Formation of Aliphatic Carboxylic Acids during Soda-AQ Pulping of Kenaf Bark
  10. Comparing Mechanical Properties of Normal and Compression Wood in Norway Spruce: The Role of Lignin in Compression Parallel to the Grain
  11. Oxidative Ammonolysis of Technical Lignins. Part 3. Effect of Temperature on the Reaction Rate
  12. The Erythro/Threo Ratio of β-O-4 Structures as an Important Structural Characteristic of Lignin. Part 2. Changes in Erythro/Threo (E/T) Ratio of β-O-4 Structures during Delignification Reactions
  13. The Effect of HS- Ions in 1-mol/l NaOH Solutions on the Ion Diffusion in Wood Calculated as the Steady State Diffusion and the Drift Speed
  14. Industrial Kiln Drying and its Effect on Microstructure, Impregnation and Properties of Scots Pine Timber Impregnated for Above Ground Use. Part 1. Effects of Initial, Final Dryings and Preservative on Impregnation and Timber Quality
  15. Industrial Kiln Drying and its Effect on Microstructure, Impregnation and Properties of Scots Pine Timber Impregnated for Above Ground Use. Part 2. Effect of Drying on Microstructure and Some Mechanical Properties of Scots Pine Wood
  16. Study on Gypsum-Bonded Particleboard Reinforced with Jute Fibres
  17. Literature Reports
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