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ORIGINAL ARTICLE
Year : 2013  |  Volume : 4  |  Issue : 3  |  Page : 146-150

β-sitosterol in different parts of Saraca asoca and herbal drug ashokarista: Quali-quantitative analysis by liquid chromatography-mass spectrometry


1 Centre for Biotechnology, Maharshi Dayanand University, Rohtak, Haryana, India
2 National Research Institute of Basic Ayurvedic Sciences, (Central Council for Research in Ayurvedic Sciences), Nehru Garden, Kothrud, Pune, Maharashtra, India
3 Department of Biochemistry, Maharshi Dayanand University, Rohtak, Haryana, India

Correspondence Address:
Rajesh Dabur
Department of Biochemistry, Maharshi Dayanand University, Rohtak, Haryana - 124 001
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2231-4040.116783

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β-sitosterol is an important component in food and herbal products and beneficial in hyperlipidemia. Its higher concentrations in serum may lead to coronary artery disease in case of sitosterolemia. Therefore, it is essential to determine the quantity of β-sitosterol in food and herbal drugs. Saraca asoca and its preparations have been widely used by traditional healers are also a source of β-sitosterol. In the present study, quantitative estimation of β-sitosterol present in hot and cold water extracts of bark, regenerated bark, leaves and flowers of the S. asoca and Ashokarista drugs were carried out first time using high performance liquid chromatography coupled (HPLC) with quadrupole time-of-flight mass spectrometry. Different concentrations of β-sitosterol and crude extracts were estimated by HPLC and targeted mass spectrometry. Standard curve for β-sitosterol was prepared from the intensities of transitions (397.50 → 147.0987 m/z) having regression coefficient (r 2) 0.9952. Out of eight extracts and two drugs used in the study bark water, leaves water and leaves hot water extracts were found to have a considerable quantity of β-sitosterol, i.e. 170, 123.5 and 19.3 ng/mL, respectively. The results showed significant differences in the distribution of β-sitosterol among different organs of S. asoca and drugs prepared from its bark. HPLC/electrospray ionizationmass spectroscopy method is accurate, reproducible and requires less specimen, sample preparation and analysis time over HPLC assay. This type of approaches could be helpful for the quality control of herbal medicines and provides necessary information for the rational utilization of plant resources.


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