Table III.
Particle Sizes and Zeta Potential of Calcium Pectinate Particles and Magnesium Pectinate Particles
| Formula composition | Ca-Pectinate Particles | Mg-Pectinate Particles | ||||
|---|---|---|---|---|---|---|
| Pectin Conc. (mg/ml) | Divalent Cation Conc (mg/ml) | Pectin/Cation (w/w) | Mean diameter (nm ± SD) | Zeta potential (mV ± SD) | Mean diameter (nm ± SD) | Zeta potential (mV ± SD) |
| 1.0 | 10 | 0.02:1 | >1,000 | NM | 686.1 ± 22 | −7.45 ± 0.4 |
| 1.0 | 6 | 0.03:1 | >1,000 | NM | 655.2 ± 45 | −8.11 ± 1.2 |
| 1.0 | 1 | 0.2:1 | >1,000 | NM | 554.3 ± 12 | −7.91 ± 1.4 |
| 1.0 | 0.5 | 0.4:1 | >1,000 | NM | 314.0 ± 22 | −7.76 ± 0.6 |
| 1.0 | 0.1 | 2:1 | 919.1 ± 23 | −13.3 ± 0.3 | 604.1 ± 51 | −13.3 ± 0.5 |
| 0.5 | 10 | 0.01:1 | >1,000 | NM | 562.1 ± 24b | −1.51 ± 0.1 |
| 0.5 | 6 | 0.02:1 | >1,000 | NM | 611.5 ± 12 | −3.77 ± 0.2 |
| 0.5 | 1 | 0.1:1 | >1,000 | NM | 766.5 ± 44 | −7.41 ± 1.4 |
| 0.5 | 0.5 | 0.2:1 | >1,000 | NM | 764.8 ± 15 | −8.34 ± 1.2 |
| 0.5 | 0.1 | 1:1 | 955.2 ± 45 | −10.4 ± 0.8 | 655.3 ± 32 | −7.24 ± 0.7 |
| 0.1 | 10 | 0.002:1 | >1,000 | NM | 955.3 ± 38 | −9.05 ± 0.4 |
| 0.1 | 6 | 0.003:1 | >1,000 | NM | 877.4 ± 27 | −8.31 ± 1.1 |
| 0.1 | 1 | 0.02:1 | >1,000 | NM | 655.2 ± 31 | −3.16 ± 1.3 |
| 0.1 | 0.5 | 0.04:1 | >1,000 | NM | 558.1 ± 41 | −3.98 ± 0.1 |
| 0.1 | 0.1 | 0.2:1 | 904.5 ± 44a | −6.46 ± 0.5 | 656.3 ± 29 | −5.45 ± 0.7 |
NM Not measurement
aIndicated F1 (0.1 mg/ml pectin solution: 0.1 mg/ml CaCl2 solution at the weight ratio of 0.2:1)
bIndicated F2 (0.5 mg/ml pectin solution: 10 mg/ml MgCl2 solution at the weight ratio of 0.01:1)