Extraction And Analysis Of Spearmint And Eucalyptus Oils

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Abstract

The aim of this study was the extraction and analysis of spearmint and

eucalyptus volatile oils. The samples were collected from shambat farms

(Khartoum north).

The results showed that the Saponification numbers were (24.41, 22.44), acid

values were (0.5611, 0.8417), ester numbers were (23.85, 21.60) and peroxide

numbers were (0.01, 0.035), Refractive index values were (1.483, 1.473), density

(0.755, 0.66) g/cm3 for spearmint and eucalyptus oils respectively.

The IR analysis results showed the presence of CH aromatic,CH2,CH3 stretching

bond and C=O,C-C, C-O and substituted aromatic in spearmint oil, and presence of

CH aromatic,CH2,CH3 stretching bond, C-H bending aromatic , and substituted

aromatic in eucalyptus oil. GC-MS results showed that the eucalyptus oil was composed of (70) components. The main compounds were found to be alpha phellandrene (26.35%), benzene, 1- methyl-3-(1- methyl ethyl) (18.48%), eucalyptol (12.74%), bicyclo [3.1.0] hex-2- ene, 2-methyl-5-(1- methyl ethyl) (5.26%).

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