Chromatography of tannins. III. Multiple peaks in high-performance liquid chromatography of some hydrolyzable tannins

Tsutomu Hatano, Takashi Yoshida, Takuo Okuda

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

Hydrolyzable tannins which have a dehydrohexahydroxydiphenoyl group show multiple and broad peaks when their alcoholic solutions are subjected to high-performance liquid chromatography. This anomaly was found to be due to the formation of methanol adducts at the ketonic carbonyl of the dehydrohexahydroxydiphenoyl group as revealed by nuclear magnetic resonance spectroscopy. Another kind of hydrolyzable tannins found to show two or more peaks were those forming anomer mixtures in solutions. After treatment with sodium borohydride, they showed a single peak upon high-performance liquid chromatographic analysis.

Original languageEnglish
Pages (from-to)285-295
Number of pages11
JournalJournal of Chromatography A
Volume435
Issue numberC
DOIs
Publication statusPublished - 1988

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Organic Chemistry

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