comparison of chemical composition of eucalyptus camaldulensis essential oil in ahvaz and urmia using gas chromatography-mass spectrometry method

Medicinal plants have always been considered as effective compounds in the treatment of diseases. research to find novel compounds is essential because of the resistance of microorganisms to antibiotics and surreptitious use of them. among the compounds extracted from plants, essential oils (eos) have a unique characteristic because they have anti-fungal, anti-viral and anti-bacterial properties. in this study, the eo of eucalyptus camaldulensis was investigated. in a study conducted by elia et al., (1) samples of e. camaldulensis were collected from ahvaz, iran, their leaf eo was extracted in a clevenger apparatus, and the chemical compounds were analyzed using gas chromatography-mass spectrometry (gc-ms). the gc-ms analysis revealed 17 compounds. in another study, the chemical compounds of e. camaldulensis cultivated in urmia, iran, were determined by gc-ms (2). there were 34 compounds, and 5 similar compounds can be observed between them and ahvaz compounds. these compounds include 1,8-cineole, α-pinene, γ-terpinene, allo-aromadendrene, and viridiflorol. the 1,8-cineole, which is the most important compound of e. camaldulensis, had a higher percentage in the sample grown in ahvaz (55.20% vs.36.62%). two different habitats are affected by factors, such as climate, and experimental and seasonal conditions (1-3). more research is required to compare the chemical composition of e. camaldulensis’ eo in different habitats of iran. using minimum inhibitory concentration, minimum bactericidal concentration and inhibition zone diameter, the performance of the eo on specific bacteria can be determined and the most effective one can be selected.