Verbena officinalis L. (Vervain; family-Verbenaceae),a traditionally used and medicinally promising plant, has been reported to contain triterpenoids as major class of phytoconstituents. But no work has ever been carried out on V. officinalis to isolate major chemical constituent(s), and to standardize plant material on the basis of isolated constituent(s) using TLC densitometry.The chloroform extract of V. officinalisaerial parts was prepared by extracting properly identified plant in a Soxhlet apparatus.Preliminary phytochemical screening of chloroform extract showed presence of triterpenoids. Column chromatography of chloroform extract using solvent systems viz., hexane:chloroform, chloroform and chloroform:methanol in different concentrationsyielded five fractions (F1 - F5 ). Preliminary phytochemical screening of various fractions of chloroform extract revealed presence of triterpenoids in F2 and F3 fractions. Therefore, these fractions were further subjected to column chromatography. White colored crystals were obtained in SF1 sub-fraction separated from F2 and was designated as VOC-1. Structure of VOC-1 was elucidated by IR and NMRspectral studies and was characterized as ursolic acid. Further, ursolic acid was quantified in V. officinalisaerial parts by validated TLC densitometric method. The content of ursolic acid was found to be 0.1580% in V. officinalis aerial parts.The linearity range, correlation coefficient, intraday precision, inter-day precision, LOD, LOQ and accuracy were found to be 300-1800 ng, 0.997, 1.2% CV, 1.6% CV, 40 ng/spot, 130 ng/spot and 98.27% respectively.

Author Name: JASHANJOT KAUR, DEEPAK KUMAR, REECHA MADAAN AND SURESH KUMAR

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Keywords: HPTLC, Ursolic acid, Verbenaceae, Verbena officinalis.

ISSN: 2321-2217

EISSN: 2321-2225

EOI/DOI: 10.15415/jptrm.2014.22008

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