Tannins from Betel Nuts

Ying Tsun Ma, Feng-Lin Hsu, Shu Jan J Lan, Chieh Fu Chen

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

From the acetone extract of fresh betel nuts, two procyanidin pentamers, two procyanidin tetramers and three procyanidin trimers, along with (+)-catechin, (-)-epicatechin, procyanidin A-1, procyanidin B-1, procyanidin B-2, and procyanidin B-7 were isolated. Based on 1H NMR and 13C NMR spectral data as well as the results of thiolysis degradation, the chemical structures of two series of oligomeric arecatannins A and B have been established. The arecatannins from betel nuts were found to be condensed-type tannins which possess (-)-epicatechin unit and (+)-catechin units. All arecatannins had C4-C8 linked (-)-epicatechin in the upper units whereas the (+)-catechin in the terminal unit had C4-C8 or C4-C6 linkage.

Original languageEnglish
Pages (from-to)77-81
Number of pages5
JournalJournal of the Chinese Chemical Society
Volume43
Issue number1
Publication statusPublished - 1996

Fingerprint

Areca
Catechin
Tannins
Nuclear magnetic resonance
Proanthocyanidins
Acetone
Degradation
procyanidin
procyanidin B

Keywords

  • Areca catechu
  • Arecatannin
  • Betel nut
  • Condensed tannin
  • Flavan-3-ol
  • Proanthocyanidin
  • Procyanidin

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Ma, Y. T., Hsu, F-L., Lan, S. J. J., & Chen, C. F. (1996). Tannins from Betel Nuts. Journal of the Chinese Chemical Society, 43(1), 77-81.

Tannins from Betel Nuts. / Ma, Ying Tsun; Hsu, Feng-Lin; Lan, Shu Jan J; Chen, Chieh Fu.

In: Journal of the Chinese Chemical Society, Vol. 43, No. 1, 1996, p. 77-81.

Research output: Contribution to journalArticle

Ma, YT, Hsu, F-L, Lan, SJJ & Chen, CF 1996, 'Tannins from Betel Nuts', Journal of the Chinese Chemical Society, vol. 43, no. 1, pp. 77-81.
Ma YT, Hsu F-L, Lan SJJ, Chen CF. Tannins from Betel Nuts. Journal of the Chinese Chemical Society. 1996;43(1):77-81.
Ma, Ying Tsun ; Hsu, Feng-Lin ; Lan, Shu Jan J ; Chen, Chieh Fu. / Tannins from Betel Nuts. In: Journal of the Chinese Chemical Society. 1996 ; Vol. 43, No. 1. pp. 77-81.
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