A sensitive, simple, and accurate high-performance thin-layer chromatographic method has been established for determination of oleanolic acid in whole-plant powder from Oldenlandia corymbosa L. A methanol extract of the powder was used for the experimental work. The concentration of oleanolic acid in whole plant was found to be 1.892 μg g −1 . Separation was performed on aluminum HPTLC plates coated with silica gel 60 F 254 , with dichloromethane-toluene-acetone-methanol, 3 + 4 + 1.5 + 0.3 ( v/v ), as mobile phase. After development, plates were treated with Liebermann-Burchard reagent and detection and quantification were performed by densitometry at λ = 529 nm. Detection and quantitation limits were 0.1 μg and 0.5 μg, respectively. Oleanolic acid response was linear over the range 1 to 9 μg. The validated HPTLC method can be used for routine quality-control analysis of Oldenlandia corymbosa L. whole-plant powder and for quantitative determination of oleanolic acid.
H. Tokuda, H. Ohigashi, K. Koshimizu , and Y. Ito , Cancer Lett. 33 (1986) 279–285.
Ito Y. , '' (1986 ) 33 Cancer Lett. : 279 -285 .
Y. Muto, M. Ninomiya , and H. Fujiki , Jpn. J. Clin. Oncol. 20 (1990) 219–224.
Fujiki H. , '' (1990 ) 20 Jpn. J. Clin. Oncol. : 219 -224 .
M. Ishida, T. Okubo, K. Koshimizu, H. Daito, H. Tokuda, T. Kin, T. Yamamoto , and N. Yamazaki , Chem. Abstr. 113 (1990) 12173y.
H.Y. Hsu , Cancer Det. Prev. 22 (1998) (Supplement 1).
J.C. Touchstone , Practice of Thin-Layer Chromatography, John Wiley and Sons, USA, 1992.
Touchstone J.C. , '', in Practice of Thin-Layer Chromatography , (1992 ) -.
J. Sherma and B. Fried , Handbook of Thin-Layer Chromatography, Chromatographic Science Series, Marcel Dekker, NY, 1996.
Fried B. , '', in Handbook of Thin-Layer Chromatography, Chromatographic Science Series , (1996 ) -.
A.K.S Jardine, J.D. Macfarlane , and C.S. Greeensted , Statistical Methods for Quality Control, IBM Press, UK, 1975.
Greeensted C.S. , '', in Statistical Methods for Quality Control , (1975 ) -.
P.D. Sethi and D. Charegaonkar , Identification of Drugs in Pharmaceutical Formulations by TLC, CBS India, 1999.
Charegaonkar D. , '', in Identification of Drugs in Pharmaceutical Formulations by TLC , (1999 ) -.
E. Stahl , Thin-Layer Chromatography — A Laboratory Handbook, CBS, India, 1969.
Stahl E. , '', in Thin-Layer Chromatography — A Laboratory Handbook , (1969 ) -.