Table 2.
Average particle size (nm), PDI and zeta potential of astaxanthin nanodispersions prepared with different emulsifier.
| Emulsifier | Particle size (nm) | PDI | Zeta Potential (mV) |
|---|---|---|---|
| Polysorbates | |||
| Polysorbate 20 | 75.0 ± 3.2 d | 0.376 ± 0.023 cd | −14.1 ± 0.6 c |
| Polysorbate 40 | 83.5 ± 2.6 bc | 0.642 ± 0.037 a | −23.3 ± 2.5 b |
| Polysorbate 60 | 139.7 ± 7.2 a | 0.541 ± 0.093 ab | −22.8 ± 2.6 b |
| Polysorbate 80 | 160.3 ± 10.0 a | 0.474 ± 0.092 bc | −24.3 ± 4.9 b |
| Sucrose esters | |||
| L-1695 | 73.1 ± 2.2 d | 0.242 ± 0.030 e | −19.2 ± 1.2 b |
| P-1570 | 85.2 ± 2.0 b | 0.281 ± 0.022 e | −21.2 ± 2.0 b |
| S-1570 | 143.5 ± 7.4 a | 0.424 ± 0.062 bc | −30.0 ± 2.2 a |
| OWA-1570 | 79.8 ±1.2 c | 0.355 ± 0.005 d | −21.0 ± 2.7 b |
Values are means ± standard deviations (n = 6); a–c Different letters show statistically significant differences between treatments (p < 0.05).