Characterization of within-tree variation of lignin components in Eucalyptus camaldulensis by pyrolysis-gas chromatography

Hiroaki Yokoi, Yasuyuki Ishida, Hajime Ohtani, Shin Tsuge, Tetsuya Sonoda, Toshihiro Ona

研究成果: ジャーナルへの寄稿学術誌査読

42 被引用数 (Scopus)

抄録

Pyrolysis-gas chromatography (Py-GC) using a vertical microfurnace pyrolyzer was applied to the precise determination of the 'within-tree variation' of the ratio of syringyl and guaiacyl units (S/G ratio) for lignin in Eucalyptus camaldulensis. On the pyrogram of the Eucalyptus obtained at 450°C, many characteristic peaks derived from syringyl and guaiacyl units of lignin were reproducibly observed, together with those from cellulose and hemicellulose. On the basis of the relative intensities of those characteristic peaks relating to the syringyl and guaiacyl units, the 'within-tree variation' of the S/G ratio was determined precisely in about 1 h using only about 0.1 mg of the powdered wood sample with a 2% relative standard deviation. The results obtained were also compared with those obtained by the thioacidolysis method.

本文言語英語
ページ(範囲)669-674
ページ数6
ジャーナルAnalyst
124
5
DOI
出版ステータス出版済み - 1999
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 分析化学
  • 生化学
  • 環境化学
  • 分光学
  • 電気化学

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