Latin Name: Eucalyptus globulus
Eucalyptus is a popular essential oil, tested for its antimicrobial properties, and often used as an insect repellent and to open breathing.
ANTIMICROBIAL / ANTIBACTERIAL / ANTIFUNGAL / ANTIVIRAL
In this randomized double-blind trial with 100 ICU patients with with ventilation endotracheal tube, eucalyptus was effective in reducing pulmonary infection. From: Fallahi, M., Karimpour, H., AminiSaman, J., Mohammadi, S., Sharifi, A., Jahanbakhsh, A., … & Kawyannejad, R. (2019). Effect of eucalyptus incense on prevention of early and late ventilator-associated pneumonia: A randomized controlled double-blinded clinical trial. Journal of Mazandaran University of Medical Sciences, 28(170), 64-73.
Thirty essential oils were tested against pathogenic plant bacteria. Ceylon cinnamon (leaf and bark), oregano, clove bud, palmarosa, basil, peppermint, rosemary, blue gum, camphor, lemongrass, aniseed, ylang ylang, silver fir, lemon, dwarf mountain pine, bay laurel, scots pine, black cumin, Indian frankincense, bergamot orange, common juniper, bitter orange, and neem showed varying degrees of reaction. From: Popović, T., Milićević, Z., Oro, V., Kostić, I., Radović, V., Jelušić, A., & Krnjajić, S. (2018). A preliminary study of antibacterial activity of thirty essential oils against several important plant pathogenic bacteria. Pesticidi i fitomedicina, 33(3-4), 185-195.
Clove, cajeput, tea tree, naiouli, and eucalyptus showed varying degrees of activity against Penicillium commune. From: Tančinová, D., Foltinová, D., Mašková, Z., Štefániková, J., & Árvay, J. (2019). Effect of essential oils of Myrtaceae plants on the Penicillium commune. Potravinarstvo Slovak Journal of Food Sciences, 13(1), 604-613.
Tea tree and eucalyptus essential oil aerosol and vapours cleared 95% of influenza A virus and E. coli phage M13 within 5 – 15 minutes of exposure. From: Usachev, E. V., Pyankov, O. V., Usacheva, O. V., & Agranovski, I. E. (2013). Antiviral activity of tea tree and eucalyptus oil aerosol and vapour. Journal of aerosol science, 59, 22-30.
Ten minutes of exposure of vapors from essential oils Citrus bergamia, Eucalyptus globulus, and the constituents citronellol and eugenol were very active against the influenza virus. Vapors of Pelargonium graveolens, Cinnamomum zeylanicum, and Cymbopogon flexuosus were very active with 30 minutes of exposure. Further, Cinnamomum zeylanicum, Citrus bergamia, Cymbopogon flexuosus and Thymus vulgaris liquid essential oils displayed 100% inhibitory activity at a 3.1 µL/mL concentration. From: Vimalanathan, S., & Hudson, J. (2014). Anti-influenza virus activity of essential oils and vapors. American Journal of Essential Oils and Natural Products, 2(1), 47-53.
Blends with Cinnamomum zeylanicum, Daucus carota, Eucalyptus globulus, Rosmarinus officinalis, Syzygium aromaticum, and Origanum vulgare showed in vitro antibacterial, antifungal, and antiviral activities against antibiotic resistant pathogens, candida strains, and both the H1N1 and HSV1 viruses. From: Brochot, A., Guilbot, A., Haddioui, L., & Roques, C. (2017). Antibacterial, antifungal, and antiviral effects of three essential oil blends. MicrobiologyOpen, 6(4), e00459.
A blend of cinnamon bark, clove bud, sweet orange, eucalyptus, and rosemary essential oils reduced flu virus activity in vitro. From: Wu, S., Patel, K. B., Booth, L. J., Metcalf, J. P., Lin, H. K., & Wu, W. (2010). Protective essential oil attenuates influenza virus infection: an in vitro study in MDCK cells. BMC complementary and alternative medicine, 10(1), 69.
INSECTICIDAL / REPELLENT / PESTICIDAL
Essential oil from eucalyptus was insecticidal against the house fly. From: Kumar, P., Mishra, S., Malik, A., & Satya, S. (2012). Compositional analysis and insecticidal activity of Eucalyptus globulus (family: Myrtaceae) essential oil against housefly (Musca domestica). Acta tropica, 122(2), 212-218.
A review of plant based mosquitoe repellents is provided. Much research is available on plants of the Eucalyptus spp., Ocimum spp. and Cymbopogon sp. From: Rehman, J. U., Ali, A., & Khan, I. A. (2014). Plant based products: use and development as repellents against mosquitoes: a review. Fitoterapia, 95, 65-74.
The repellency of Austrailian plants of the Myrtaceae family is reviewed. From: Webb, C. E. (2014). Insect repellents derived from Australian plants and implications for public health messages. Insect repellents handbook, 213.
IMPROVED ATTENTION / COGNITION / MEMORY
COUGH AND CONGESTION
SKIN / WOUNDS
IMPROVED DERMAL DRUG ABSORPTION
By: Kathy Sadowski