| Abstrakt: |
Crataeva nurvala Buch-Ham. (Capparidaceae) is an important medicinal plant, the bark of which is extensively used in Ayurveda as a remedy for kidney stones, urinary tract infections, prostate-related disorders, and benign prostatic hypertrophy. In this study, a sensitive and reliable high-performance thin-layer chromatography (HPTLC) method has been developed for the simultaneous quantification of two bioactive markers, lupeol and β-sitosterol, in the stem bark of C. nurvala using precoated silica gel G 60 F254 HPTLC plates as the stationary phase and toluene–methanol (9.6:0.4, v/v) as the mobile phase. Detection and quantification were carried out by densitometric scanning at 545 nm after derivatization using 1% anisaldehyde–sulfuric acid reagent. The method was validated for linearity, inter-day and intra-day precision, repeatability, accuracy, specificity, limit of detection, and limit of quantification. The linear regression analysis data for the calibration plots showed a good linear relationship (r2 = 0.987–0.990) in the concentration range of 2 to 6 μg for lupeol and β-sitosterol, both with respect to areas. The proposed method provides good resolution of lupeol and β-sitosterol from other constituents present in the stem bark of C. nurvala. It was found to be simple, accurate, precise, and reproducible and would potentially be a useful tool for routine analysis of C. nurvala. [ABSTRACT FROM AUTHOR] |
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