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- Title
Ferric reducing antioxidant power of essential oils extracted from Eucalyptus and Curcuma species
- Authors
Shahwar, Durre; Raza, Muhammad Asam; Bukhari, Sana; Bukhari, Gulshan
- Abstract
Abstract: Objective: Eucalyptus and Curcuma species are well reputed for their traditional medicinal uses in south east Asia, therefore, the present study was designed to determine reducing potential of their essential oils. Method: Essential oils of the selected medicinal species Eucalyptus sideroxylon, E. teriticornis, E. citriodora, Curcuma longa and C. aromatic were extracted using hydro distillation method, separated with diethyl ether and dried over anhydrous sodium sulphate. Column chromatography of Curcuma aromatica was carried out and six fractions were collected using gradient solvent system of n-hexane-ethyl acetate. Ferric reducing antioxidant power (FRAP) of oils were evaluated using standard protocol and results were expressed in μM equivalent to FeSO4.7H2O. Results: The essential oil of Eucalyptus sideroxylon was found to possess highest reducing potential among the Eucalyptus species. Curcuma longa essential oil showed most significant reducing potential with 138.4±1.1 FRAP equivalents. Conclusions: It was concluded that the all essential oil and the column fractions of C. aromatic a possess significant reducing capacity ranged from 95.8±1.0 to 152.4±1.4 μM in a dose dependent manner.
- Subjects
SOUTHEAST Asia; IRON compounds; ANTIOXIDANTS; ESSENTIAL oils; EUCALYPTUS; CURCUMA; TRADITIONAL medicine
- Publication
Asian Pacific Journal of Tropical Biomedicine, 2012, Vol 2, Issue s3, pS1633
- ISSN
2221-1691
- Publication type
Article
- DOI
10.1016/S2221-1691(12)60467-5