USE OF ETHANOLIC EXTRACT OF COSMOS SULPHUREUS (SULFUR COSMOS) FLOWERS AS PH INDICATOR
Prasad S. Kshirsagar* and Shriniwas P. Patil
Objective: Cosmos sulphureus is ornamental plant. Present study was carried out for evaluation of ethanolic extract of its petals acts as pH indicator. Material & Methods: The previously dried and powdered flower petals of C.Sulphureus was extracted with 0.5% Acetic acid in ethanol then extract was studied preliminary for phytochemicals present and added to of buffer of different pH to note in change in colour. Result & Conclusion: on phytochemical screening pH sensitive anthocyanins which is present in extract used as pH indicator.
Keywords: Cosmos sulphureus, Ethanolic extract, Anthocyanins, pH indicator.
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