TOTAL FLAVONOIDS CONTENT IN ACIDIFIED EXTRACT OF FLOWERS AND LEAVES OF GARDENIA (GARDENIA JASMINOIDES ELLIS)
Abstract
ABSTRACT
Background: Gardenia (Gardenia jasminoides Ellis) contains secondary metabolites which responsible for pharmacological activities such as flavonoids.
Objective: The aims of this study were to determine the total flavonoids content (TFC) in the flowers and leaves of gardenia (G. jasminoides Ellis)
which macerated with acidified ethanol.
Method: The method was the colorimetric of a colored complex between flavonoid with aluminum chloride.
Results: The results showed that the highest TFC in the flowers (0.078% w/w) was obtained in a mixture solvent of ethanol and acetic acid, whereas
in the leaves (0.090% w/w) was obtained in ethanol.
Conclusion: There is no correlation between acidified ethanol and TFC in gardenia flowers and leaves.
Keywords: Maceration, Acidified ethanol, Colorimetric, Aluminum chloride.
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