GAS CHROMATOGRAPHY - MASS SPECTROPHOTOMETRY AND PHYSICOCHEMICAL ANALYSIS OF THE ESSENTIALL OIL EXTRACT OF CALOTROPIS PROCERA LEAF AND THE DETERMINATION OF IT'S ANTIOXIDANTS ACTIVITIES
Abstract
The essential oil composition of Calotropis procera fresh leaves was analyzed by GC/MS and
some physico-chemical parameters such as colour, pH, refractive index, acid index,
saponification value, iodine value and peroxide value were determined according to AFNOR
methods. Ten compounds representing 100.00% of the oil were identified. The essential oil was
dominated by Ether, 3-butene-1-yl propyl, Hydroperoxide, 1-methylphenyl and phenol, 3,5-bis(1,1-
dimethylethyl). Qualitatively, this oil is rich in hydrocarbons 33.6%, Oxygenated compounds
44.1% and 22.3% aromatic compounds. The Antioxidants activities was evaluated using DPPH
( EC50= 293.7ug/ml) and FRAP. These findings suggest that Calotropis procera leaf essential
oil as a valuable natural antioxidants resources for cosmetic, pharmaceutical, and food
application.
Key words: Calotropis procera, essential oil, Gc-Ms analysis physico-chemical parameters,
Antioxidants activities
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