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Silica content of 36 Brazilian tropical wood species

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Published/Copyright: July 3, 2012
Holzforschung
From the journal Holzforschung Volume 67 Issue 1

Abstract

Microscopic analysis of 36 Brazilian Amazon wood species revealed the presence of silica in 12 species, mostly in the ray cells and a few times in the axial parenchyma and fibers. The average amount of silica in these species varied from 0.07% to 1.6% as quantified by flame atomic absorption spectroscopy (FAAS). Statistical analysis gave the following classification in terms of silica contents: very low (<0.07%), low (between 0.07% and 0.3%: Diplotropis purpurea and Vatairea paraensis), medium (between 0.3% and 0.4%: Chrysophyllumlucentifolium, Couratari multiflora, Dacryodes sp., Mezilaurus itauba, Trattinnickia burserifolia, and Trattinnickia rhoifolia), high (between 0.4% and 0.7%: Astronium gracile and Couratari sp.), and very high (above 0.7%: Apuleia leiocarpa and Couratari stellata).

Keywords: Amazon forest; flame atomic absorption spectroscopy (FAAS); light microscopy; silica bodies; silica determination; tropical wood species
Corresponding author. Laboratório de Produtos Florestais-LPF/Serviço Florestal Brasileiro-SFB, Av. L-4 Norte, SCEN, Trecho 2, Lote 4, Bloco “B”, 70818-900 Brasília-DF, Brazil Phone: +55 61 2028-7210 Fax: +55 61 2028-7280
Received: 2011-11-25
Accepted: 2012-6-5
Published Online: 2012-07-03
Published in Print: 2013-01-01

©2013 by Walter de Gruyter Berlin Boston

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  5. Steam pretreatment for enzymatic hydrolysis of poplar wood: comparison of optimal conditions with and without SO2 impregnation
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  14. Changes in viscoelastic vibrational properties between compression and normal wood: roles of microfibril angle and of lignin
  15. Elastic properties of cellular wood panels with hexagonal and auxetic cores
  16. Alternative experimental method to evaluate moment-carrying capacity of traditional wood-to-wood joint with small scale experiment
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https://doi.org/10.1515/hf-2011-0240
Keywords for this article
Amazon forest; flame atomic absorption spectroscopy (FAAS); light microscopy; silica bodies; silica determination; tropical wood species

Articles in the same Issue

  1. Masthead
  2. Masthead
  3. Original Papers
  4. Assessment of total phenols and extractives of mahogany wood by near infrared spectroscopy (NIRS)
  5. Steam pretreatment for enzymatic hydrolysis of poplar wood: comparison of optimal conditions with and without SO2 impregnation
  6. Silica content of 36 Brazilian tropical wood species
  7. Dissolution and acetylation of ball-milled lignocellulosic biomass in ionic liquids at room temperature: application to nuclear magnetic resonance analysis of cell-wall components
  8. Effects of hydrothermal processing on the cellulosic fraction of Eucalyptus globulus wood
  9. Wood capillarity and deacetylation during eucalyptus alkaline impregnation. Sulphidity effects and comparison between transverse directions
  10. Effects of climatic test parameters on acetic acid emission from beech (Fagus sylvatica L.)
  11. Rational production of veneer by IR-heating of green wood during peeling: Modeling experiments
  12. Measurement of intra-ring wood density by means of imaging VIS/NIR spectroscopy (hyperspectral imaging)
  13. Coarse graining of wood cell arrangement and density dependence of elasticity
  14. Changes in viscoelastic vibrational properties between compression and normal wood: roles of microfibril angle and of lignin
  15. Elastic properties of cellular wood panels with hexagonal and auxetic cores
  16. Alternative experimental method to evaluate moment-carrying capacity of traditional wood-to-wood joint with small scale experiment
  17. Detection of iron-chelating and iron-reducing compounds in four brown rot fungi
  18. Synthesis and fungicidal activity of dehydroabietyl-1,2,4-triazolo-thiazolidinones
  19. Meetings
  20. Meetings
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