EFFECTS OF DILUTION AND AGITATION ON EUCALYPTUS PELLITA ESSENTIAL OIL EXTRACTION
DOI:
https://doi.org/10.21580/wjc.v9i1.31088Keywords:
Essential oil, agitation speed, Eucalyptus pellita, hydrodistillation, solid–liquid ratioAbstract
Eucalyptus pellita essential oil is commonly extracted by hydrodistillation; however, this process has limited efficiency due to heat and mass-transfer constraints. Process parameters, such as solvent loading and agitation, offer promising but understudied opportunities for process intensification to improve oil yield and quality. This study aimed to analyze the interactive effects of the leaf-to-solvent mass ratio and agitation speed on the extraction yield and chemical profile of E. pellita essential oil obtained through hydrodistillation. Extraction was performed using 150 g of chopped E. pellita leaves with particle sizes of 0.1–0.5 cm at 100°C for 4 hours under atmospheric pressure. The independent variables were leaf-to-solvent mass ratios of 1:4, 1:6, and 1:8, and agitation speeds of 300, 600, and 900 rpm. The extracted oil was quantified based on yield and chemical composition. The chemical profile of the essential oil was characterized using gas chromatography–mass spectrometry (GC–MS). The results showed that solvent proportion had a more significant effect than agitation speed. The 1:8 ratio produced the highest oil mass of 0.62 g and yield of 0.41%. GC–MS analysis identified α-pinene, eucalyptol (1,8-cineole), L-α-terpineol, caryophyllene, and bicyclo[3.1.1]heptane as the major components. This study demonstrates the decoupled effects of solvent ratio and agitation in E. pellita hydrodistillation, revealing the solvent ratio as a chemical driver of compositional selectivity and agitation speed as a physical driver of system homogeneity. This distinction provides a targeted strategy for simultaneously optimizing extraction yield and oil quality.
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References
Azzahra, V. S. N., Mulyanti, D., & Ega Priani, S. (2023). Bandung Conference Series: Pharmacy Karakteristik Minyak Eukaliptus untuk Alternatif Bahan Utama Sediaan Farmasi. Bandung Conference Series: Pharmacy, 362–366. https://doi.org/10.29313/bcsp.v3i2.8987
Baskaran, D., Sathiamoorthy, M., Govindarasu, R., & Byun, H. S. (2024). Comparing diverse extraction methodologies to infer the performance of 1,8-cineole extraction from Eucalyptus cinerea: process optimization, kinetics, and interaction mechanisms. RSC Advances, 14(48), 35529–35552. https://doi.org/10.1039/d4ra06050d
Boukhatem, M. N., Boumaiza, A., Nada, H. G., Rajabi, M., & Mousa, S. A. (2020). Eucalyptus globulus essential oil as a natural food preservative: Antioxidant, antibacterial and antifungal properties in vitro and in a real food matrix (orangina fruit juice). Applied Sciences (Switzerland), 10(16). https://doi.org/10.3390/app10165581
Clavijo-Romero, A., Quintanilla-Carvajal, M. X., & Ruiz, Y. (2019). Stability and antimicrobial activity of eucalyptus essential oil emulsions. Food Science and Technology International, 25(1), 24–37. https://doi.org/10.1177/1082013218794841
Desouky, M. M. A., Abd El-Atti, M. S., Elsheakh, A. A., & Elgohary, W. S. (2022). Effect of Eucalyptus globulus oil and Ricinus communis methanolic extract as potential natural molluscicides on the reproductive biology and some antioxidant enzymes of the land snail, Theba pisana. Heliyon, 8(12). https://doi.org/10.1016/j.heliyon.2022.e12405
Katekar, V. P., Rao, A. B., & Sardeshpande, V. R. (2023). A hydrodistillation-based essential oils extraction: A quest for the most effective and cleaner technology. Sustainable Chemistry and Pharmacy, 36. https://doi.org/10.1016/j.scp.2023.101270
Labri, K., Moghrani, H., Ihadadene, R., Hamitouche, H., & Maachi, R. (2022). The application of the full factorial design and Response Surface Methodology in optimization conditions for essential oils extraction from Lavandula stoechas, Carum carvi and Eucalyptus camaldulensis: Effect of plants particle size on the extraction of essential oils. Sustainable Chemistry and Pharmacy, 30. https://doi.org/10.1016/j.scp.2022.100830
Lainez-Cerón, E., Jiménez-Munguía, M. T., López-Malo, A., & Ramírez-Corona, N. (2021). Effect of process variables on heating profiles and extraction mechanisms during hydrodistillation of eucalyptus essential oil. Heliyon, 7(10). https://doi.org/10.1016/j.heliyon.2021.e08234
Lee, K. W., Chang, Y. Y., Wu, X. F., Wang, Y. C., Shen, M. H., Yeh, C., Zheng, Z. F., & Wang, J. J. (2023). Effectiveness of aroma-Tea Tree Oil and Eucalyptus oil in alleviating COVID-19 vaccine discomfort side effects. Explore, 19(5), 755–760. https://doi.org/10.1016/j.explore.2023.03.008
Mieres-Castro, D., Ahmar, S., Shabbir, R., & Mora-Poblete, F. (2021). Antiviral activities of eucalyptus essential oils: Their effectiveness as therapeutic targets against human viruses. In Pharmaceuticals (Vol. 14, Issue 12). MDPI. https://doi.org/10.3390/ph14121210
Ngo, T. C. Q., Tran, T. H., & Le, X. T. (2020). The effects of influencing parameters on the Eucalyptus globulus leaves essential oil extraction by hydrodistillation method. IOP Conference Series: Materials Science and Engineering, 991(1). https://doi.org/10.1088/1757-899X/991/1/012126
Sebei, K., Sakouhi, F., Herchi, W., Khouja, M. L., & Boukhchina, S. (2015). Chemical composition and antibacterial activities of seven Eucalyptus species essential oils leaves. Biological Research, 48. https://doi.org/10.1186/0717-6287-48-7
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