Isolation and characterization of quinine from Polygonatum verticillatum: A new marker approach to identify substitution and adulteration
| Autor: | Vikas Gupta, Ranjit Singh, Avinash C. Tripathi, Parveen Bansal, Jaswinder Kaur Virk, Sanjiv Kumar, Shailendra K. Saraf |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Active ingredient Chromatography column chromatography biology Elution Chemistry lcsh:RM1-950 lcsh:RS1-441 marker compound biology.organism_classification Polygonatum verticillatum Terpenoid lcsh:Pharmacy and materia medica 03 medical and health sciences Ingredient Polygonatum 030104 developmental biology Column chromatography lcsh:Therapeutics. Pharmacology Phytochemical substituents Adulterants Original Article |
| Zdroj: | Journal of Advanced Pharmaceutical Technology & Research, Vol 7, Iss 4, Pp 153-158 (2016) Journal of Advanced Pharmaceutical Technology & Research |
| ISSN: | 0976-2094 2231-4040 |
| Popis: | Polygonatum verticillatum (Mahameda) is an important ingredient of Ashtawarga and Ayurvedic formulations. Nowadays, it comes under the category of endangered plants due to large scale and indiscriminate collection of wild material. To overcome the scarcity, substitutes of Mahameda are also commonly used in market. These additives are different from the authentic plant by Ayurvedic and pharmacological theory of drug action, thereby resulting in substitution/adulteration. Substitution is a critical issue in isolation and quantification of the therapeutically active ingredients that can be used as markers in the identification of substitution/adulteration. Methanolic extract of the rhizomes of P. verticillatum was subjected to preliminary phytochemical screening for the detection of phytoconstituents, followed by column chromatography for isolation of the marker. The column was first eluted with pure hexane, and polarity of the solvent was gradually increased. A total of 1180 fractions were collected and pooled on the basis of thin-layer chromatography profile. The single compound was isolated and confirmed by chemical test, melting point, spectral analysis, and comparison with literature. Phytochemical screening of the extract shows the presence of alkaloids, flavonoids, carbohydrates, terpenoids, and phenolics. A pure white crystalline powder was isolated by column chromatography which was characterized as (6-methoxyquinolin-4-yl-8-vinylquinuclidin-2-yl) methanol, i.e. Quinine. The isolated compound, Quinine, was identified as a novel compound in Mahameda as it has not been reported in the genus Polygonatum, till now. It can be used as a marker for the identification of substitution/adulteration and standardization of P. verticillatum. |
| Databáze: | OpenAIRE |
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