Physicochemical, chromatographic and spectral analyzes of essential oils of Hoggar Myrtle of Tamanrasset in southern Algeria

The Myrtus nivellei Batt. and Trab. is an endemic shrub of the central Sahara, known for its respiratory anti-infective and hypoglycemic properties. This work consists of a physicochemical, chromatographic and spectral analysis of essential oils extracted from leaves harvested in the region of Tamanrasset in southern Algeria. The extractive yield is 1.6 ± 0.05 (ml/100g of dry plant), the refractive index is 1.4700 ± 0.0005 and the relative density is 0.9052 (g/ml). GC-MS made it possible to inventory thirty-six (36) compounds: 78.55% of monoterpenes, essentially oxygenated, including 1,8-Cineole which represents the majority compound at 33.95%; which could partly explain the anti-infectious properties of Hoggar Myrtle essential oil.