Document Type: Original Research Article

Authors

1 Research & Development Centre, Bharathiar University, Coimbatore 641-046, Tamil Nadu, India

2 Centre for Medicinal Plants Research, Kottakkal Arya Vaida Sala, Kerala

3 Kerala University of Fisheries and Ocean Studies, Pangad, Kochi, Kerala

Abstract

Barleria strigosa willd, a popular medicinal plant used mainly in Asian countries as a natural medicine. The root and leaves of this plant has been used in various traditional medicine systems in Asia. The present study intends to explore the medicinal activities and to detect the phytochemical constituents responsible for the therapeutic activities. Major antioxidant assayssuch as ABTS (2,2’azinobis (3-ethylbenzothiazoline-6-sulphonic acid)) scavenging, nitric oxide quenching, ferric reducing and DPPH (1,1-diphenyl-2-picrylhydrazyl) scavenging were done on different extracts to identify the effective extraction method.  An activity based isolation of major compounds was conducted on the hydroalcohol extract and characterizations of the isolated compounds were done using1H, 13C NMR and mass spectrometry. Among the tested samples, hydroalcohol extract revealed higher phenolics and flavonoids contentsand also exhibited predominant results in various antioxidant assays. Significance pβ-hydroxy-20(29)-lupene, lup-20(29)-ene-3β,28-diol, 3-beta-hydroxyolean-12-en-28-oic acid, 22,23-dihydrostigmasterol, 3,3',4',5,7-pentahydroxyflavone, (2S,3R)-2-(3,4-dihydroxyphenyl)chroman-3,5,7-triol and 3-caffeoylquinic acid. B. strigosa is a rich source of medicinally active terpenoid, phenolic and flavonoid compounds and possess potent antioxidant activities which are beneficial for human health as a green pharmaceutical medicine.

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