Table 2.
Composition of the formulations
| Sample name | Ingredients [%] | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| OC | OT | OM | OH | T80 | Aqua | GTCC | CA | Cb30 | Method | |
| NE-OC-2.5 -PIC | 2.5 | – | – | – | 17.5 | 80 | – | – | – | PIC |
| NE-OC-1.5 -PIC | 1.5 | – | – | – | 18.5 | 80 | – | – | – | PIC |
| NE-OT-1.5-PIC | – | 1.5 | – | – | 18.5 | 80 | – | – | – | PIC |
| NE-OM-1.5-PIC | – | – | 1.5 | – | 18.5 | 80 | – | – | – | PIC |
| NE-OH-2.0-PIC | – | – | – | 2.0 | 18.0 | 80 | – | – | – | PIC |
| NE-OH-1.5-PIC | – | – | – | 1.5 | 18.5 | 80 | – | – | – | PIC |
| NE-OC-2.5-US | 2.5 | – | – | – | 2.5 | 95 | US | |||
| NE-OC-1.5-US | 1.5 | – | – | – | 1.5 | 97 | – | – | – | US |
| NE-OT-1.5-US | – | 1.5 | – | – | 1.5 | 97 | US | |||
| NE-OM-1.5-US | – | – | 1.5 | – | 1.5 | 97 | – | – | – | US |
| NE-OH-2-US | – | – | – | 2.0 | 2.0 | 96 | US | |||
| NE-OH-1.5-US | – | – | – | 1.5 | 1.5 | 97 | – | – | – | US |
| ME-OC-2.5 | 2.5 | – | – | – | 6 | 80.5 | 5.5 | 6 | 0.5 | – |
| ME-OT-1.5 | – | 1.5 | – | – | 6 | 80.5 | 5.5 | 6 | 0.5 | – |
| ME-OM-1.5 | – | – | 1.5 | – | 6 | 80.5 | 5.5 | 6 | 0.5 | – |
| ME-OH-2.0 | – | – | – | 2.0 | 6 | 80.5 | 5.5 | 6 | 0.5 | – |
ME macroemulsion; NE nanoemulsion; OC cinnamon oil; OT thyme oil; OM manuka oil; OH tea tree oil; T80 Tween 80; GTCC Caprylic/capric triglyceride; CA cetyl alcohol; Cb30 Carbopol 30; PIC Phase inversion method; US Ultrasound method