Table 1.
Antimicrobial activity of some essential oils (EO) compounds against different microorganisms.
| Antimicrobial Activity | EO | Main Compound |
Structure | Microorganism | MIC/IC50 | MBC/MFC | Reference |
|---|---|---|---|---|---|---|---|
| a,bAntibacterial activity | Peppermint and mint oils | Menthol |
|
Methicillin-resistant Staphylococcus aureus—ATCC 33591 Escherichia coli—ATCC 10798 Streptococcus mutans—ATCC 25175 Aggregatibacter actinomycetemcomitans—ATCC 33384 |
1000 μg/mL >2500 μg/mL 1000 μg/mL 500 μg/mL |
1000 μg/mL >2500 μg/mL 1000 μg/mL 1000 μg/mL |
[45,46] |
| Lemon and cinnamon oil | Linalool |
|
S. aureus—ATCC 25923 E. coli—ATCC O157:H7 |
5.0 μg/mL 6.0 μg/mL |
5.5 μg/mL 6.0 μg/mL |
[45,47,48] | |
| Clove oil | Eugenol |
|
Methicillin-resistant S. aureus E. coli—S17 strain E. coli—ATCC 8739 S. aureus—ATCC 25923 Bacillus cereus—ATCC 14579 Salmonella typhimurium—ATCC 14028 |
1300 μg/mL 400 μg/mL 30 μg/mL 3 μg/mL 70 μg/mL 70 μg/mL |
1.5 mg/mL 0.5 mg/mL Bacterial growth Bacterial growth Bacterial growth 0.06 mg/mL |
[45,49,50,51,52,53] | |
| Ginger oil | Gingerols |
 6-Gingerol  8-Gingerol  10-Gingerol |
Porphyromonas gingivalis—ATCC 53978 Porphyromonas endodontalis—ATCC 35406 Prevotella intermedis—ATCC 25611 |
6–30 µg/mL 6–30 µg/mL 6–30 µg/mL |
4–20 µg/mL 4–20 µg/mL 4–20 µg/mL |
[54] | |
| Mustard oil | AITC |
|
S. aureus—ATCC 29413 Listeria monocytogenes—(Scott A) Salmonella enteritidis—(PT 30) |
500–1000 μg/mL 500–1000 μg/mL 500–1000 μg/mL |
Not Available | [55] | |
| a,c Antifungal activity | Clove oil | Compound not specified in article |
Cladosporium cladosporioides—air-borne Chaetomium globosum—air-borne Aspergillus fumigatus—air-borne |
500 μg/mL 250 μg/mL 250 μg/mL |
0.075% (w/v) 0.05% (w/v) 0.075% (w/v) |
[56,57] | |
| Tea tree oil | Compound not specified in article |
Epidermophyton floccosum Microsporum canis Trichophyton rubrum Aspergillus niger Penicillium spp. Alternaria spp. Fluconazole-Resistant Candida albicans—ATCC 10231 |
80–300 μg/mL 40–300 μg/mL 80–300 μg/mL 600–1200 μg/mL 300–600 μg/mL 160–1200 μg/mL 1250 μg/mL |
0.12–0.25% (v/v) 0.06–0.25% (v/v) <0.03–0.25% (v/v) 2–8% (v/v) 0.5–2% (v/v) 0.06–2% (v/v) 0.25% (v/v) |
[58] | ||
| Arborvitae | Compound not specified in article | C. globosum—air-borne | 100 μg/mL | 0.025% (w/v) | [57] | ||
| Oregano | Compound not specified in article |
A. fumigatus—air-borne C. cladosporioides—air-borne Alternaria alternata—air-borne |
250 μg/mL 100 μg/mL 100 μg/mL |
0.075% (w/v) 0.075% (w/v) 0.05% (w/v) |
[57] |
a MIC = Minimal Inhibitory Concentration. b MBC = Minimum Bactericidal Concentration. c MFC= Minimum Fungicidal Concentration.