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Phytochem Anal. 2005 Jan-Feb;16(1):24-9.

Quantitative determination of the major saponin mixture bacoside A in Bacopa monnieri by HPLC.

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Department of Phytochemistry, Research and Development Centre, Natural Remedies Pvt Ltd, Veerasandra Industrial Area, Bangalore-560 100, India.


Bacoside A, the putative bioactive component of the Indian medicinal plant Bacopa monnieri, was found to be a mixture of saponins with bacoside A3 (1), bacopaside II (2), jujubogenin isomer of bacopasaponin C (3) and bacopasaponin C (4) as major constituents. An HPLC method together with an optimised extraction procedure was developed for the estimation of 1-4 in B. monnieri to enable standardisation of the latter. Concentration ranges of the analytes in samples of B. monnieri collected from different regions of India were 0.14-0.85% (w/w) (1), 0.12-0.69% (2), 0.05-0.72% (3) and 0.05-0.44% (4). The importance of using bacoside A, with known concentrations of 1-4, as a reference standard for the routine analysis of B. monnieri is highlighted. Two common flavonoids, luteolin and apigenin, were present in all samples of B. monnieri.

[Indexed for MEDLINE]

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