title: Semi-preparative HPLC preparation and HPTLC quantification of tetrahydroamentoflavone as marker in Semecarpus anacardium and its polyherbal formulations.
abstract: Application of modern scientific knowledge coupled with sensitive analytical technique is important for the quality evaluation and standardization of polyherbal formulations. Semecarpus anacardium, an important medicinal plant with wide medicinal properties, is frequently used in a large number of traditional herbal preparations. Tetrahydroamentoflavone (THA), a major bioactive biflavonoid was selected as a chemical marker of S. anacardium and RP-semi-preparative HPLC conditions were optimized for the isolation of tetrahydroamentoflavone. HPTLC analytical method was developed for the fingerprinting of S. anacardium flavonoids and quantification of tetrahydroamentoflavone. The method was validated in terms of their linearity, LOD, LOQ, precision and accuracy and compared with RP-HPLC-DAD method. The methods were demonstrated for the chemical fingerprinting of S. anacardium plant parts and some commercial polyherbal formulations and the amount of tetrahydroamentoflavone was quantified. HPTLC analysis showed that S. anacardium seed contained approximately 10 g kg(-1) of tetrahydroamentoflavone. The methods were able to identify and quantify tetrahydroamentoflavone from complex mixtures of phytochemicals and could be extended to the marker-based standardization of polyherbal formulations, containing S. anacardium.
authors.affiliation: Agro Processing and Natural Products Division, National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695019, Kerala, India.
authors.forename: S G
authors.initials: SG
authors.lastname: Aravind
authors.forename: Ranjith
authors.initials: R
authors.lastname: Arimboor
authors.forename: Meena
authors.initials: M
authors.lastname: Rangan
authors.forename: Soumya N
authors.initials: SN
authors.lastname: Madhavan
authors.forename: C
authors.initials: C
authors.lastname: Arumughan
mesh_terms: D015415:Biomarkers / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid / Q000295:instrumentation / Q000379:methods*; D047309:Flavones; D005419:Flavonoids / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification; D000432:Methanol / Q000737:chemistry; D015394:Molecular Structure; D010936:Plant Extracts / Q000032:analysis; D028321:Plant Preparations / Q000032:analysis*; D010946:Plants, Medicinal / Q000737:chemistry; D015203:Reproducibility of Results; D012639:Seeds / Q000737:chemistry; D031023:Semecarpus / Q000737:chemistry*
chemical_list: D015415:Biomarkers; D047309:Flavones; D005419:Flavonoids; D010936:Plant Extracts; D028321:Plant Preparations; C043562:flavone; D000432:Methanol