» Articles » PMID: 28045446

Biological Activities of Essential Oils: From Plant Chemoecology to Traditional Healing Systems

Abstract

Essential oils are complex mixtures of hydrocarbons and their oxygenated derivatives arising from two different isoprenoid pathways. Essential oils are produced by glandular trichomes and other secretory structures, specialized secretory tissues mainly diffused onto the surface of plant organs, particularly flowers and leaves, thus exerting a pivotal ecological role in plant. In addition, essential oils have been used, since ancient times, in many different traditional healing systems all over the world, because of their biological activities. Many preclinical studies have documented antimicrobial, antioxidant, anti-inflammatory and anticancer activities of essential oils in a number of cell and animal models, also elucidating their mechanism of action and pharmacological targets, though the paucity of in human studies limits the potential of essential oils as effective and safe phytotherapeutic agents. More well-designed clinical trials are needed in order to ascertain the real efficacy and safety of these plant products.

Citing Articles

Synergistic Antibiofilm Effects of Chestnut and Linden Honey with Lavender Essential Oil Against Multidrug-Resistant Otitis Media Pathogens.

Angyan V, Balazs V, Kocsis M, Kocsis B, Horvath G, Farkas A Antibiotics (Basel). 2025; 14(2).

PMID: 40001390 PMC: 11851655. DOI: 10.3390/antibiotics14020146.


Exploring Biomarkers for Malaria: Advances in Early Detection and Asymptomatic Diagnosis.

Harmonis J, Kusuma S, Rukayadi Y, Hasanah A Biosensors (Basel). 2025; 15(2).

PMID: 39997008 PMC: 11853453. DOI: 10.3390/bios15020106.


Traditionally Used Edible Flowers as a Source of Neuroactive, Antioxidant, and Anti-Inflammatory Extracts and Bioactive Compounds: A Narrative Review.

Ksiazkiewicz M, Karczewska M, Nawrot F, Korybalska K, Studzinska-Sroka E Molecules. 2025; 30(3).

PMID: 39942781 PMC: 11820717. DOI: 10.3390/molecules30030677.


var. Flower Essential Oil Reduces MRSA Pathogenicity by Inhibiting Virulence Gene Expression.

Kim J, Park B, Kim Y, Yoon J, Choi N, Kim K Molecules. 2025; 30(3).

PMID: 39942657 PMC: 11820971. DOI: 10.3390/molecules30030553.


Dietary Patterns, Oxidative Stress, and Early Inflammation: A Systematic Review and Meta-Analysis Comparing Mediterranean, Vegan, and Vegetarian Diets.

Ilari S, Proietti S, Milani F, Vitiello L, Muscoli C, Russo P Nutrients. 2025; 17(3).

PMID: 39940408 PMC: 11819869. DOI: 10.3390/nu17030548.


References
1.
Sebei K, Sakouhi F, Herchi W, Khouja M, Boukhchina S . Chemical composition and antibacterial activities of seven Eucalyptus species essential oils leaves. Biol Res. 2015; 48:7. PMC: 4417289. DOI: 10.1186/0717-6287-48-7. View

2.
Baliga M, Rao S, Rai M, Dsouza P . Radio protective effects of the Ayurvedic medicinal plant Ocimum sanctum Linn. (Holy Basil): A memoir. J Cancer Res Ther. 2016; 12(1):20-7. DOI: 10.4103/0973-1482.151422. View

3.
Xiao Y, Yang F, Li S, Hu G, Lee S, Wang Y . Essential oil of Curcuma wenyujin induces apoptosis in human hepatoma cells. World J Gastroenterol. 2008; 14(27):4309-18. PMC: 2731181. DOI: 10.3748/wjg.14.4309. View

4.
Ghelardini C, Galeotti N, Salvatore G, Mazzanti G . Local anaesthetic activity of the essential oil of Lavandula angustifolia. Planta Med. 2000; 65(8):700-3. DOI: 10.1055/s-1999-14045. View

5.
Perry R, Terry R, Watson L, Ernst E . Is lavender an anxiolytic drug? A systematic review of randomised clinical trials. Phytomedicine. 2012; 19(8-9):825-35. DOI: 10.1016/j.phymed.2012.02.013. View