Barricyclin D1 - A dimeric ellagitannin with a macrocyclic structure - And accompanying tannins from Barringtonia racemosa

Shinji Yoshikawa, Lih Geeng Chen, Morio Yoshimura, Yoshiaki Amakura, Tsutomu Hatano, Shoko Taniguchi

Research output: Contribution to journalArticlepeer-review

Abstract

Our examination of high molecular weight polyphenolic constituents in the leaves of Barringtonia racemosa of the family Lecythidaceae uncovered 5 previously undescribed ellagitannins. One, barringtin M1 (1), among them was a hydrolysable tannin monomer, while remaining 4, barringtins D1 (2), D2 (3), D3 (4), and barricyclin D1 (5), were all dimers. Barricyclin D1 had a first macrocyclic structure formed from casuarictin (6) and tellimagrandin I (7), and the other ellagitannins had structures related to 5. Two additional known phenolics, valoneic acid dilactone (8) and schimawalin A (9), were also isolated from the leaves. These results suggested that the leaves of B. racemosa are a natural resource rich in hydrolysable tannin oligomers.

Original languageEnglish
Pages (from-to)1609-1620
Number of pages12
JournalBioscience, Biotechnology and Biochemistry
Volume85
Issue number7
DOIs
Publication statusPublished - Jul 1 2021
Externally publishedYes

Keywords

  • barricyclin D1
  • Barringtonia racemosa
  • ellagitannin
  • Lecythidaceae
  • macrocyclic structure

ASJC Scopus subject areas

  • Biotechnology
  • Analytical Chemistry
  • Biochemistry
  • Applied Microbiology and Biotechnology
  • Molecular Biology
  • Organic Chemistry

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