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J AOAC Int. 2014 May-Jun;97(3):773-7.

HPTLC method for simultaneous determination of piperine, embeline, and carvone in the ayurvedic formulation Catpusphadhya churna.


Churnas are an important group of formulations used by traditional physicians to treat various types of diseases. The principle of using a churna is based on the fact that the therapeutic value of most substances greatly increases when they are reduced to a very fine state of subdivision. Catpusphadhya churna, as per the Ayurvedic system of Indian medicine, is used for acute rheumatoid arthritis. In the present study, an attempt was made to develop an HPTLC method for the quantitative determination of piperine, embeline, and carvone in a laboratory-prepared formulation. Raw materials used in formulations were obtained from two different suppliers and were subjected to methanol extractions by using a Soxhlet apparatus. Piperine, embeline, and carvone were quantified in the extracts by using HPTLC. The detection and quantification were performed at 254 nm. The formulation contained 2.35% (w/w) of piperine, 4.86% (w/w) of embeline, and 1.48% (v/w) of carvone. Linearity studies indicated that piperine, embeline, and carvone were in the linear ranges, while the recovery studies revealed a recovery of 99.32% (w/w) of piperine, 101.82% (w/w) of embeline, and 100.09% (v/w) of carvone, thus proving the accuracy of the analysis. The developed HPTLC method resolved and quantified piperine, embeline, and carvone effectively, so it could be an important method for the QC of polyherbal formulations.

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