Table 2.
Stability of the nanoemulsions containing Eucalyptus globulus oil in 0–90-day periods.
Time | Conditions | Size | PDI ± SD | Zeta potential | pH ± SD |
---|---|---|---|---|---|
(nm) ± SD | (mV) ± SD | ||||
After preparation | — | 75.57 ± 14.73 | 0.22 ± 0.04 | −9.42 ± 1.15 | 4.68 ± 0.05 |
| |||||
7 days | RT | 75.74 ± 5.85 | 0.25 ± 0.03 | −15.83 ± 1.62∗∗ | 4.26 ± 0.08∗∗ |
RE | 73.81 ± 8.35 | 0.23 ± 0.03 | −7.97 ± 2.10 | 4.55 ± 0.06∗ | |
CC | 257.93 ± 66.86 | 0.26 ± 0.08 | −10.50 ± 2.24 | 3.25 ± 0.04∗∗∗ | |
| |||||
15 days | RT | 74.23 ± 6.07 | 0.24 ± 0.03 | −19.5 ± 2.02∗∗∗ | 4.93 ± 0.08∗ |
RE | 73.71 ± 14.80 | 0.26 ± 0.05 | −9.26 ± 0.71 | 4,33 ± 0.04∗∗∗ | |
CC | 248.93 ± 97.94 | 0.35 ± 0.12 | −17.53 ± 4.09∗∗ | 4.12 ± 0.05∗∗∗ | |
| |||||
30 days | RT | 76.92 ± 0.45 | 0.24 ± 0.07 | −14.03 ± 3.30 | 3.66 ± 0.13∗∗∗ |
RE | 80.03 ± 17.55 | 0.32 ± 0.10 | −11.63 ± 3.69 | 4.24 ± 0.14∗∗∗ | |
CC | 488.93 ± 147.76∗∗ | 0.56 ± 0.09∗∗ | −22.27 ± 2.73∗∗ | 2.91 ± 0.07∗∗∗ | |
| |||||
60 days | RT | 83.37 ± 3.87 | 0.18 ± 0.04 | −12.60 ± 0.29 | 3.14 ± 0.12∗∗∗ |
RE | 76.04 ± 6.03 | 0.25 ± 0.03 | −11.57 ± 4.15 | 4.08 ± 0.05∗∗∗ | |
CC | 486.20 ± 92.48∗∗ | 0.53 ± 0.09∗ | −23.37 ± 2.17∗∗∗ | 2.72 ± 0.07∗∗∗ | |
| |||||
90 days | RT | 152.47 ± 38.81∗∗ | 0.07 ± 0.06∗ | −18.87 ± 0.31∗∗∗ | 2.99 ± 0.11∗∗∗ |
RE | 74.97 ± 8.36 | 0.24 ± 0.02 | −10.40 ± 2.61 | 4.21 ± 0.02∗∗∗ | |
CC | — | — | — | — |
Storage conditions: RT: room temperature (25°C); RE: refrigeration (4°C); CC: climatic chamber (40°C and 65% humidity). The analyses were carried out by variance (ANOVA) of one way, followed by Dunnett's test. Values of p < 0.05 were considered statistically significant. ∗p < 0.05, ∗∗p < 0.01, and ∗∗∗p < 0.001.