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The Lipophilic Extractives of an Interglacial Fossil Picea abies from Zeifen (Germany)

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Published/Copyright: June 1, 2005
Holzforschung
From the journal Volume 53 Issue 4

Summary

A fossil Picea abies from Zeifen (Germany), 100,000 years old and still presenting good physical and anatomical properties, is analysed with respect to its lipophilic content. Comparisons are made with a recent Picea abies, with a subfossil larch and with Taxodioxylon gypsaceum fossils ranging from 1.7 to 20 million years ago. Due to the relatively small age and the low degree of degradation, terpenes having structures intermediate between the original compounds and the final terpanes are looked for. Lipophilic components obtained from the fossil Picea abies by extraction with dichloromethane include linear alkanes, fatty acids, high MWs alcohols and terpenoids such as sesquiterpanes, diterpanes and diterpenoids. Some of extractive components result unchanged after the process of ageing while others correspond to substances derived by a process of hydrolysis of original extractives occurring in recent Picea abies. Diterpanes (norabietatriene, norpimarane, retene and α-phyllocladane) correspond to those present in most fossils of conifers, even if a trend to the formation of demethylated compounds is observed. Diterpenoids, on the contrary, are present exclusively as the dehydroabietic acid structure, the form preceding or responsible of those of most diterpanes, while different structures are not found. Since intermediate compounds with structures different from the abietic one are absent they might be looked for in younger fossils. The presence of a large amount of terpanes places this fossil rather closer to Taxodioxylon gypsaceum samples than to the subfossil larch.

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Published Online: 2005-06-01
Published in Print: 1999-07-01

Copyright © 1999 by Walter de Gruyter GmbH & Co. KG

Articles in the same Issue

  1. Estimation of the Relative Proportions of Cellulose I alpha and I beta in Wood by Carbon-13 NMR Spectroscopy
  2. The Relationship Between Pit Membrane Ultrastructure and Chemical Impregnability of Wood
  3. The Influence of the Geometrical Distribution of Cell-Wall Tissues on the Transverse Anisotropic Dimensional Changes of Softwood
  4. On The Permeability of Main Wood Species in China
  5. Weathering of Radial and Tangential Wood Surfaces of Pine and Spruce
  6. Removal of Hexavalent Chromium from Dilute Aqueous Solution by Coniferous Leaves
  7. Performance of Copper and Non-Copper Based Wood Preservatives in Terrestrial Microcosms
  8. Cooperation of Fungal Laccase and Glucose 1-Oxidase in Transformation of Björkman Lignin and Some Phenolic Compounds
  9. Micromorphological Characteristics of Compression Wood Degradation in Waterlogged Archaeological Pine Wood
  10. Induction of Resin Pockets in Seedlings of Pinus sylvestris L. by Mechanical Bending Stress during Growth
  11. The Lipophilic Extractives of an Interglacial Fossil Picea abies from Zeifen (Germany)
  12. Glyceryl-Acyl and Aryl-Acyl Dimers in Pseudotsuga menziesii Bark Suberin
  13. Modified Lignin and Delignification with a CAD-Deficient Loblolly Pine
  14. Polyhydric Alcohol Pulping at Atmospheric Pressure: An Effective Method for Organosolv Pulping of Softwoods
  15. Oxygen Delignification of High-Yield Kraft Pulp. Part I: Structural Properties of Residual Lignins
  16. A New Mechanism in the Ozone Reaction with Lignin Like Structures
  17. Surface Properties of Mechanical Pulps Prepared under Various Sulfonation Conditions and Preheating Time
  18. The Mechanisms Behind the Improved Dimensional Stability of Particleboards Made from Steam-Pretreated Particles
  19. Volatile Organic Chemicals Emissions from OSB as a Function of Processing Parameters
  20. Literature Reports
https://doi.org/10.1515/HF.1999.065

Articles in the same Issue

  1. Estimation of the Relative Proportions of Cellulose I alpha and I beta in Wood by Carbon-13 NMR Spectroscopy
  2. The Relationship Between Pit Membrane Ultrastructure and Chemical Impregnability of Wood
  3. The Influence of the Geometrical Distribution of Cell-Wall Tissues on the Transverse Anisotropic Dimensional Changes of Softwood
  4. On The Permeability of Main Wood Species in China
  5. Weathering of Radial and Tangential Wood Surfaces of Pine and Spruce
  6. Removal of Hexavalent Chromium from Dilute Aqueous Solution by Coniferous Leaves
  7. Performance of Copper and Non-Copper Based Wood Preservatives in Terrestrial Microcosms
  8. Cooperation of Fungal Laccase and Glucose 1-Oxidase in Transformation of Björkman Lignin and Some Phenolic Compounds
  9. Micromorphological Characteristics of Compression Wood Degradation in Waterlogged Archaeological Pine Wood
  10. Induction of Resin Pockets in Seedlings of Pinus sylvestris L. by Mechanical Bending Stress during Growth
  11. The Lipophilic Extractives of an Interglacial Fossil Picea abies from Zeifen (Germany)
  12. Glyceryl-Acyl and Aryl-Acyl Dimers in Pseudotsuga menziesii Bark Suberin
  13. Modified Lignin and Delignification with a CAD-Deficient Loblolly Pine
  14. Polyhydric Alcohol Pulping at Atmospheric Pressure: An Effective Method for Organosolv Pulping of Softwoods
  15. Oxygen Delignification of High-Yield Kraft Pulp. Part I: Structural Properties of Residual Lignins
  16. A New Mechanism in the Ozone Reaction with Lignin Like Structures
  17. Surface Properties of Mechanical Pulps Prepared under Various Sulfonation Conditions and Preheating Time
  18. The Mechanisms Behind the Improved Dimensional Stability of Particleboards Made from Steam-Pretreated Particles
  19. Volatile Organic Chemicals Emissions from OSB as a Function of Processing Parameters
  20. Literature Reports
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