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 language | English |
|---|---|
| Pages (from-to) | 285-295 |
| Number of pages | 11 |
| Journal | Journal of Chromatography A |
| Volume | 435 |
| Issue number | C |
| DOIs | |
| Publication status | Published - 1988 |
ASJC Scopus subject areas
- Analytical Chemistry
- Biochemistry
- Organic Chemistry