Test of the Reduction of Pathogenic Microorganisms in Wastewater from the Agro-food and Domestic Industries by the Essential Oil of Eucalyptus citriodora

Sharon Tshibola Mpiana (University of Kinshasa)
André Kanjinga Ngoyi (University of Kinshasa)
Tania Nkanga Bonona (University of Kinshasa)
Bienvenue Mvingu Kamalandua (University of Kinshasa)
Francis Tshiswaka Kabongo (University of Kinshasa)
Hervé Ngangu Boloki (University of Kinshasa)
Thierry Tangou Tabou (University of Kinshasa)

Biology, Medicine, & Natural Product Chemistry
Vol 15, No 1 (2026)

The study evaluates Eucalyptus citriodora essential oil (EO) as an eco-friendly alternative to chemical disinfectants for treating wastewater from agro-food and domestic sources. It demonstrates the oil's antimicrobial effectiveness against Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa, achieving bacterial growth inhibition at low concentrations. While less potent than chlorine in total microbial elimination, the EO presents fewer environmental and health risks. The study concludes that EO is a viable option for sustainable wastewater disinfection and encourages further research into its applications.