Lamria, SeiDelloula, LakhdariOuafia, BelgherbiInes, Laourari3Nasrin, GolzadehDalila, Chouder2023-05-312023-05-312022-09-01Lamria Seid1*, Delloula Lakhdari2,Ouafia Belgherbi1,2, InesLaourari3, Nasrin Golzadeh4,Dalila Chouder1,VALORIZATION OF CITRUS SINENSIS WASTES FOR THE PRODUCTION OF ORANGE ESSENTIAL OIL: IDENTIFICATION OF CHEMICAL COMPOSITION AND ANTIBACTERIAL ACTIVITY . Journal of Fundamental and sciences. vol.14, no 3. SEP 2022. Faculty of exact sciences. university of el oued. [visited in22/08/2022]. available from [belgherbiwafia@gmail.com]http://dspace.univ-eloued.dz/handle/123456789/25223ARTICLEThe objective of this study was to extract, characterize, and examine the antibacterialproperties of orange essential oil obtained from citrus sinensis peels, using hydro-distillationmethod. Various components of the orange oil were characterized by FTIR, UV-Vis and GC-MS spectroscopic techniques. The extracted essential oil was conformed to AFNORstandards, and had a maximum yield of 3.4% (w/w). The obtained results showed thatlimonene was the major bioactive components of the orange essential oil (97.14%). Theessential orange oil and its dilutions in DMSO showed an excellent antibacterial activityagainst Staphylococcus aureus (gram-positivebacteria) with a diameter of inhibitionzonesuperior to 40 mm. However,it was ineffective antibacterial activity against Escherichia coliand Pseudomonas aerogenes (gram negative bacteria)enCitrus sinensis; Orange essential oil; Antibacterial activity; Staphylococcus aureus; Escherichia coli; Pseudomonas aerogenesArticle