Discriminative analysis of Eucalyptus camaldulensis grown from seeds of various origins based on lignin components measured by pyrolysis-gas chromatography

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

研究成果: Contribution to journalArticle査読

42 被引用数 (Scopus)

抄録

Pyrolysis-gas chromatography (Py-GC) using a vertical microfurnace pyrolyzer combined with the principal component analysis (PCA) was applied to the discriminative analysis of Eucalyptus camaldulensis trees grown at the same field from the seeds of different origins. On the pyrograms of the Eucalyptus samples obtained at 450 °C, many characteristic peaks derived from syringyl (S) and guaiacyl (G) units of lignin were reproducibly observed along with those derived from cellulose and hemicellulose. First, the discriminative analysis among the Eucalyptus trees was attempted on the basis of the S/G ratio calculated from the relative peak intensities of the pyrolyzates characteristic to lignin. However, it was difficult to make unequivocal specification for the origins of the seeds by the observed S/G ratio alone. Then, the PCA was applied to discriminate Eucalyptus tree samples based on the molar yields of the peaks specifically derived from lignin observed by Py-GC. As a result, the origin of Eucalyptus trees was successfully discriminated even grown at the same field.

本文言語英語
ページ(範囲)145-152
ページ数8
ジャーナルJournal of Analytical and Applied Pyrolysis
57
1
DOI
出版ステータス出版済み - 1 1 2001
外部発表はい

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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