Effect of Geothermal Drying Treatment on Extract Composition of Sugi (<i>Cryptomeria japonica</i>) Board

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  • 地熱乾燥処理がスギ板材の抽出成分含量に与える影響
  • チネツ カンソウ ショリ ガ スギ イタザイ ノ チュウシュツ セイブン ガンリョウ ニ アタエル エイキョウ

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Abstract

<p>Geothermal drying treatment is one of the wood drying methods. To investigate the quantitative change of terpenes in sugi (Cryptomeria japonica) board caused by four drying treatments, extracts of sugi board dried by moderate-temperature, high-temperature, geothermal energy and air were analyzed by gas-chromatograph mass-spectrometer (GC/MS). Samples were prepared using a planer to plane dried boards (1-2 mm from the surface), and to extract the shavings with ethyl acetate. As a result, total extractive content detected by GC/MS did not differ among the drying treatments. However, content of β-Caryophllene and Thujopsene was higher in air-dried boards than in those dried by the other methods (p<0.05). Sandaracopimarinal and Ferruginol content was highest in geothermal-dried board as compared to all drying methods. From the principal component analysis, a portion of terpenes in sugi board exposed to geothermal-drying treatment was similar to that of air-dried boards.</p>

Journal

  • Mokuzai Gakkaishi

    Mokuzai Gakkaishi 65 (4), 195-200, 2019-10-25

    The Japan Wood Research Society

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