Applied Biology in Saharan Areas
Volume 1, Numéro 2, Pages 1-7

Phytochemistry, Antimicrobial Activities Of The Essential Oils Of The Branches Of Juniperus Phoenicea In Bechar (algeria)

Authors : Akermi Moulay M'hammed . Moussaoui Abdallah . Makhloufi Ahmed . Dalil Halima .


The branches of Juniperus phoenicea harvested in the Bechar region, contain (2.004%) of essential oils extracted by steam distillation, they show a density of (0.91) and an optical rotation of (+19.74°). Phytochemical tests reveal the presence of chemical compounds, including coumarins, reducing compounds, sterols and steroids, saponins, starch, tannins, flavonoids, anthocyanins and anthracénosides. The activity of the essential oils of Juniperus phoenicea a is tested on seven bacterial strains: Staphylococcus aureus, Enterococcus faecalis, Listeria monocytogenes, Pseudomonas aeruginosa (yellow), Bacillus cereus, Escherichia coli, Pseudomonas aeruginosa (green) and two fungal strains: Aspergillus flavus and Aspergillus ochraceus. Allowed to claim that it has an inhibitory power vis-à-vis all microorganisms tested despite their Gram, mold proved to be more vulnerable than bacteria. Moreover, the minimum inhibitory concentration shows a value of (8μl / ml) for mold and (22.2μl / ml) for the bacteria.


Keywords: Antimicrobial activity, essential oil, Juniperus phoenicea, Arid Zone.