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Estimation of Guggulsterone E and Z in the Guggul-based Commercial Formulations Using High-performance Thin-layer
Pramod Kumar Sairkar1, Anjana Sharma2, N P Shukla3
1Centre of Excellence in Biotechnology, M. P. Council of Science and Technology, Bhopal, Madhya Pradesh, India.
Background:
Guggulsterone (GS) is a plant steroid and bioactive compound present in gum Guggul of Commiphora wightii. An Indian herbal medicine system "Ayurveda" has a long history of use of gum Guggul and plant extract of C. wightii as medicine for the treatment of various illnesses. Complex nature, low availability, and inconsistency of phytoconstituents make its analysis of difficult tasks.
Aims:
In this work, six different Guggul-based herbal formulations were examined for estimation of GS and their isomers (E and Z) through high-performance thin-layer chromatography technique.
Materials And Methods:
For that various concentrations of standard E-GS and Z-GS (50 ng-250 ng/spot) with samples (20 μg/spot) were applied on silica gel coated aluminum plate and developed with the mobile phase of toluene: ethyl acetate: formic acid: methanol (6:2:1:0.5). The scanning was performed at 254 nm wavelength and the absorbance (scan) spectrum of E-GS and Z-GS peak was generated at 200 nm-400 nm wavelength range.
Results And Conclusions:
Rf value and scan spectrum pattern of the samples reveal that they contain either one form of GS (E-GS, Z-GS) or both. The quantity of E-GS and Z-GS within the samples was ranged from 0.230 ± 0.0040-0.926 ± 0.0168% to 0.537 ± 0.0026-0.723 ± 0.0177%, respectively.
