イベント堆積物中の環構造が減成されたトリテルペノイドのGC-MS解析

  • 朝日 啓泰
    北海道大学 大学院理学院 自然史科学専攻
  • 沢田 健
    北海道大学 大学院理学研究院 地球惑星科学部門

書誌事項

タイトル別名
  • GC-MS analyses of ring degraded triterpenoids in event deposits
  • イベント タイセキブツ チュウ ノ カン コウゾウ ガ ゲン ナサレタ トリテルペノイド ノ GC-MS カイセキ

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抄録

<p>Ring degraded triterpenoids, in which cyclic structure is opened and/or cleaved, were commonly identified in sediments and peats. These degraded triterpenoids such as des-A, des-E, and C ring-cleaved triterpenoids are considered to be formed by microbial and/or photochemical processes during transport and deposition. In the present study, we analyzed the ring degraded triterpenoids using GC-MS in the event deposits such as turbiditic sediments of the Miocene Kawabata Formation from Yubari, central Hokkaido, and a tsunami deposit in the Holocene peat core from Kiritappu area, eastern Hokkaido. We identified various des-A and des-E triterpenoids and C-ring cleaved triterpenoids including aliphatic and aromatic hydrocarbons as well as ketones. In addition, mass spectra of unidentified des-A triterpenoids were reported.</p><p></p>

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