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    Article

    Quantification of flavonoids of Psidium guajava L. preparations by Planar Chromatography (HPTLC)

    S. M. El Sohafy1★, A. M. Metwalli1, F. M. Harraz1, A. A. Omar1★ Corresponding author

    1. 1Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt.

    CORRESPONDENCE

    S. M. El Sohafy

    Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt.

    Samahelsohafy@yahoo.com

    Received: 28-08-2008; Revised: 07-09-2008; Accepted: 06-11-2008.

    Volume 5, Issue 17 · pp. 61–66 · PUBLISHED 2009 · DOI:

    View on Pharmacogn. Mag. original site ↗

    ABSTRACT

    Guava leaves, as most medicinal plants used in folk medicine, lack any systematic methodology needed to demonstrate genuine efficacy. The method described in this study is the first step towards establishing consumer confidence in guava preparations and demonstrates the use of HPTLC-UV to quantify the quercetin content of Psidium guajava L. leaves (quercetin content of the leaves ranged from 0.181 – 0.393 %) The results obtained were accurate (recovery ranged from 96 – 97.20 %) and precise (% RSD 0.856 and SD 0.01).

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      Sohafy, S. M. E., Metwalli, A. M., Harraz, F. M., & Omar, A. A. (2009). Quantification of flavonoids of Psidium guajava L. preparations by Planar Chromatography (HPTLC). Pharmacognosy Magazine, 5(17), 61–66.