High-performance liquid chromatographic determination of quercetin and isorhamnetin in rat tissues using beta-glucuronidase and acid hydrolysis

Philip C. Morrice; Sharon Wood; Garry G. Duthie

doi:10.1016/S0378-4347(99)00520-4

High-performance liquid chromatographic determination of quercetin and isorhamnetin in rat tissues using beta-glucuronidase and acid hydrolysis

Philip C. Morrice, Sharon Wood, Garry G. Duthie

The Rowett Institute of Nutrition and Health

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27 Citations (Scopus)

Abstract

Quercetin is a plant polyphenol which is present in the diet as an aglycone and as sugar conjugates. Despite potent vasodilatory and antioxidant effects in vitro, destruction by intestinal organisms has been assumed to Limit its nutritional relevance in the rat. However, we have refined extraction techniques using P-glucuronidase followed by acid hydrolysis. Following this with HPLC methodology with post-column derivatisation, we have detected significant concentrations of quercetin and its metabolite, isorhamnetin, in tissues of rats maintained on quercetin-rich diets. Percentage recoveries are greater than 95% and intra-batch variation does not exceed 7% suggesting that the method may be useful in further studies of the biological role of this flavonoid. (C) 2000 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	413-417
Number of pages	5
Journal	Journal of Chromatography B: Biomedical Sciences and Applications
Volume	738
Issue number	2
DOIs	https://doi.org/10.1016/S0378-4347(99)00520-4
Publication status	Published - 11 Feb 2000

Keywords

quercetin
isorhamnetin
beta-glucuronidase
flavonols
plasma

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High-performance liquid chromatographic determination of quercetin and isorhamnetin in rat tissues using beta-glucuronidase and acid hydrolysis. / Morrice, Philip C.; Wood, Sharon; Duthie, Garry G.
In: Journal of Chromatography B: Biomedical Sciences and Applications, Vol. 738, No. 2, 11.02.2000, p. 413-417.

Research output: Contribution to journal › Article › peer-review

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High-performance liquid chromatographic determination of quercetin and isorhamnetin in rat tissues using beta-glucuronidase and acid hydrolysis

Abstract

Keywords

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