@article{Khaoula_Nour-edddine_Chaymae_Mohammed_Abdellah_Lahsen_Faouzi_2023, title={Climatological effects on Chemical Composition, Biological Activity of Essential oil from Eucalyptus globulus Leaves and Seeds: http://www.doi.org/10.26538/tjnpr/v7i4.16}, volume={7}, url={https://tjnpr.org/index.php/home/article/view/1881}, abstractNote={<p>In the last decade, there has been interest worldwide concern about the antibacterial and antioxidant properties of plants. This work aims to study the antibacterial, antioxidant activities and chemical composition of Eucalyptus globulus essential oil leaves and seeds. Essential oil was extracted from <em>Eucalyptus globulus </em>seeds and leaves by hydrodistillation giving yields of 1.8% and 0.8% respectively, Chemical composition analysis by gas chromatography coupled with mass spectrometry (GC-MS) revealed the presence of a total of 33 compounds in seeds and 28 compounds in leaves. Antibacterial activity showed that essential oils was active against all tested bacterial strains. Antioxidant propriety measured by 2,2-diphenyl-1-picrylhydrazyl (DPPH) showed that essential oils obtained from leaves have higher antioxidant activity when compared to essential oils of seeds. However, the total antioxidant capacity revealed that seeds (22,68 mg EAA/g MS) have high activity with respect to leaves (5,44 mg EAA/g MS). These results confirmed the richness of the two essential oils in phenolic compounds responsible for their biological activity. A comparative bioclimatic study was carried out in order to investigate the effect of climate on chemical composition of <em>Eucalyptus globulus </em>leaves and seeds in Morocco. Factorial component analysis between chemical composition of essential oils from different countries and climatic parameters revealed that 1.8 cineole is strongly correlated with minimal (m) and maximal temperature values (M) and Emberger quotient (Q). Whereas, essential oils extracted from seeds is not affected by these parameters. </p>}, number={4}, journal={Tropical Journal of Natural Product Research (TJNPR)}, author={Khaoula, Filali S. and Nour-edddine, Chadli and Chaymae, Bouchama and Mohammed, Raoui S. and Abdellah, Zindine and Lahsen, El ghadraoui and Faouzi, Errachidi}, year={2023}, month={May}, pages={2765–2772} }