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Chemical fingerprint of Hoodia species, dietary supplements, and related genera by using HPTLC
Author(s) -
Rumalla Chidananda Swamy,
Avula Bharathi,
Shukla Yatin J.,
Wang YanHong,
Pawar Rahul S.,
Smillie Troy J.,
Khan Ikhlas A.
Publication year - 2008
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.200800441
Subject(s) - chromatography , chemistry , repeatability
Abstract A HPTLC method was developed for simple and rapid chemical fingerprint analysis of four Hoodia species, dietary supplements that claim to contain Hoodia gordonii , and plants from genera related to Hoodia . HPTLC was performed on precoated silica 60F 254 plates with dichloromethane/methanol/water 75:17:2.2 by volume, as mobile phase. Evaluation of the HPTLC plates was done by using the CAMAG DigiStore2 digital system with winCATS software. The authentication of H. gordonii was achieved by comparing the band colors and R f values for TLC fingerprints with those of 11 standard compounds including P57. The developed method was successfully applied for the identification of the 11 pregnane glycosides for four different species of Hoodia , 24 related genera and 13 dietary supplements that claim to contain H. gordonii . Different sample matrices were successfully analyzed, providing a wide range of applicability for this method, including gels, capsules, tablets, sprays, teas, snack bars, powders, and juices. The developed method was validated for specificity, stability, repeatability, and robustness. The results of HPTLC method were verified by LC‐UV‐MS method.