Abstract
Ocimum gratissimum L. essential oil was studied in this research for its physicochemical characteristics and composition. The essential oil extraction performance achieved 0.3-0.45% by hydrodistillation process. The physicochemical properties of the obtained oil were also discovered including specific gravity at 0.9645 g/cm3, acid index at 13.035 mg KOH/g, ester index at 14.745 mg KOH/g, refractive index at 1.526, and optical rotation at +15.6°. Through gas chromatography/mass spectrometry (GC/MS), it was revealed that the oil is extremely rich in eugenol (59.448 %), trans-ß-Ocimene (10.382 %), β-Cubebene (11.783 %), Caryophyllene (6.966 %) and Copaene (2.479 %). Therefore, optimizing the preservation conditions for the essential oils is suggested as potential pathway to extend the application and enhance the value of Ocimum gratissimum essential oils.
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