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Ethanol extractives of fossil Sequoia wood

Ethanolextrckte aus einer fossilen Sequoia

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Abstract

Except for small amounts of neutral compounds, the ethanol extracts from fossil Sequoia wood contained over 80% polymeric substances. The bulk of materials was separated into fractions by column chromatography and investigated by means of UV- and FTIR spectroscopy. According to the results the polymeric products are a type of Brauns lignins. Both spectroscopic data revealed considerable changes in. composition and constitution of lignin.

Zusammenfassung

Die Ethanolextrakte einer fossilen Sequoia enthalten neben einem geringen Anteil neutraler Komponenten über 80% polymere Substanzen. Die Hauptmenge wurde durch Säulen-Chromatographie in Fraktionen aufgetrennt und anhand von UV- und FTIR-Spektren charakterisiert. Die polymeren Extrakte erwiesen sich dabei als eine Art von Brauns-Lignin. Beide spektroskopische Methoden weisen auf beträchtliche Veränderungen der chemischen Zusammensetzung des Lignins hin.

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Authors and Affiliations

  1. I.Ü. Orman Fakültesi, Bahceköy, 80895, Istanbul, Turkey

    G. Uçar & M. Balaban

  2. Yildiz University, Besiktas, Istanbul, Turkey

    N. Gören

Authors
  1. G. Uçar
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  2. M. Balaban
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  3. N. Gören
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Additional information

This work was supported by the Research Fund of the University of Istanbul. Project number: 810/190496

The FTIR spectra were taken at the Institute for Wood Research, University of Munich.

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Uçar, G., Balaban, M. & Gören, N. Ethanol extractives of fossil Sequoia wood. Holz als Roh- und Werkstoff 56, 430–436 (1998). https://doi.org/10.1007/s001070050347

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  • DOI: https://doi.org/10.1007/s001070050347

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