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Abstract

DETECTION AND ESTIMATION OF RUTIN, QUERCETIN AND GALLIC ACID IN MARKETED GREEN TEA FORMULATIONS BY HPTLC TECHNIQUE

Arivukkarasu R.*, Dayanidhi V., Deepaa V. C., Deepiga G., Dinesh D., Bhuvanesh W., Rajasekaran A. and Karunanithi M.

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Abstract

The prime aim of the study is to detect the flavonoids rutin, quercetin and Gallic acid in six marketed green tea formulations (GTF-1 to GTF- 6) in methanol and aqueous extracts by HPTLC method. The analysis outcomes confirm 0.10% of rutin in GTF (4)A, 0.11% of quercetin rationally more in GTF(4)M and 0.42% of gallic acid in GTF(3)M among the six green tea formulations tested. The developed HPTLC method can be laboring for the routine investigations of flavonoids and phenolic acids. Results of the investigation revealed the presence of well-known free radical scavengers rutin in decreasing order GTF(4)A < GTF(3)A < GTF(2)A. quercetin GTF(4)M< GTF(5)M < GTF(5)A< GTF(1)A and gallic acid in decreasing Order of percentage GTF(3)M < GTF(2)M < GTF(3)A < GTF(2)A < GTF(1)A< GTF(1)M< GTF(4)A were estimated in marketed green tea formulations.

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