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J App Pharm Sci. 2015; 5(8): 159-166


Simultaneous Estimation of Stigmasterol and Withaferin A in Union Total Herbal Formulation Using Validated HPTLC Method

Neha Narendrabhai Mistry, Purvi Shah, Kalpana Patel, Lal Hingorani.

Abstract
Union Total is herbal formulation made in the form of capsule which contains two standardized plant extracts Cissus quadrangularis (CQ) and Withania somnifera (WS). The present work describes development and validation of High Performance Thin Layer Chromatographic method for simultaneous analysis of Stigmasterol (STG) in Cissus quadrangularis (CQ) and Withaferin A (WFA) in Withania somnifera (WS). Stigmasterol and Withaferin A were identified on silica G60 F254 HPTLC plates by post derivatization technique and robustness study was performed by applying a central composite design (CCD) with k factor having 2k factorial runs, 2k axial experiments and five center points. In HPTLC good separation was obtained with chloroform: methanol: toluene: formic acid (6.5: 0.5: 3: 0.25 v/v/v/v) as mobile phase and anisaldehyde sulphuric acid as a derivatizing reagent at detection wavelength 530 nm. Linearity was obtained in the concentration range of 100-200 ng/band for WFA and 200-700 ng/band for STG and the % recoveries were found in the range of 100.06 % to 100.46 % for WFA and 99.97 % to 100.94 % for STG respectively. HPTLC method was found to be sensitive, precise, accurate and reproducible, which would be of use in quality control of these tablets.

Key words: Union Total herbal formulation, Stigmasterol, Withaferin A, HPTLC, CCD



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