GC-MS analyses of ring degraded triterpenoids in event deposits

• Asahi Hiroyasu

  Department of Natural History Sciences, Graduate School of Science, Hokkaido University

• Sawada Ken

  Department of Earth and Planetary Sciences, Faculty of Science, Hokkaido University

Bibliographic Information

Other Title

• 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
• 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

Abstract

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.

Journal

• Researches in Organic Geochemistry

  Researches in Organic Geochemistry 35 (2), 55-72, 2019-12-30

  The Japanese Association of Organic Geochemists

Details

• CRID: 1391412881272322816
• NII Article ID: 130007961978
• NII Book ID: AA11889471
• DOI: 10.20612/rog.35.2_55
• ISSN: 21897891
• ISSN: 13449915
• NDL BIB ID: 030676948
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I030676948
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed