Table 4.
Composition of the experimental matrices E1–E8.
| Sample/ Component |
E1 [%] |
E2 [%] |
E3 [%] |
E4 [%] |
E5 [%] |
E6 [%] |
E7 [%] |
E8 [%] |
|---|---|---|---|---|---|---|---|---|
| PVA | 25 | 23 | 23 | 23 | 23 | 46.5 | 46.5 | |
| PVP | 15 | 10 | 10 | 10 | 10 | 16.5 | 18 | 18 |
| Sodium alginate | - | - | 1 g in 100 mL water | |||||
| Tween 80 | 0.02 | |||||||
| CaCl2 | 30 g in 100 mL water | |||||||
| CMC * | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Fennel essential oil | 12 | |||||||
| Peppermint essential oil | 12 | 12 | ||||||
| Pine essential oil | 12 | 12 | ||||||
| Thyme essential oil | 12 | 12 | ||||||
| Vitamin A | 3 | 3 | 3 | 3 | 3 | 1.5 | 1.5 | 1.5 |
| Vitamin E | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Deionized water | 50 | 50 | 50 | 50 | 50 | 14.5 | 14.5 | 14.5 |
| Glycerol | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3 |
| Polyethylene glycol | 8 | |||||||
| Glutaraldehyde | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Zn stearate | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 |
* CMC—carboxymethylcellulose.