Table 2.
Colour analysis of double encapsulated C-PC powder samples
| Samples | Before drying | Dried powder | Resuspension | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Phase composition/carrier materials | L*(D65) | a*(D65) | b*(D65) | L*(D65) | a*(D65) | b*(D65) | L*(D65) | a*(D65) | b*(D65) | |
| Freeze drying | ||||||||||
| P/S phase system | PEG and salt (PEG 4% and salt 18%) | 76.1 ± 0.4 | −30.35 ± 2.0 | −23.67 ± 1.0 | 41.6 ± 2.1 | −13.32 ± 0.90 | −10.28 ± 1.0 | 78.2 ± 1.12 | −27.5 ± 1.20 | −21.7 ± 2.1 |
| P/P phase system | PEG Dextran (PEG 6% and dextran10%) | 94.49 ± 1.01 | −7.82 ± 1.5 | −6.12 ± 1.1 | 35.41 ± 2.06 | −10 ± 0.98 | −21.29 ± 1.02 | 95.00 ± 2.0 | −7.15 ± 0.89 | −6.03 ± 1.02 |
| P/S | Spray drying | |||||||||
| TP | PEG/Salt (PEG 4% and salt 18%) | 76.1 ± 0.4 | −30.35 ± 0.84 | −23.67 ± 1.4 | 54.89 ± 2.65 | −17.23 ± 1.4 | −5.77 ± 0.48 | 80.24 ± 3.5 | −25.14 ± 2.0 | −17.89 ± 1.2 |
| TP | PEG/Salt (PEG 10% and Salt 16%) | 88.03 ± 0.46 | −15.9 ± 0.44 | −16.82 ± 0.94 | 48.16 ± 2.0 | −16.24 ± 0.94 | −8.85 ± 0.54 | 94.32 ± 3.5 | −7.75 ± 0.14 | −6.46 ± 0.9 |
| TP | PEG/Salt (PEG 13% and Salt 14%) | 85.81 ± 0.51 | −19.76 ± 0.68 | −15.24 ± 0.87 | 38.55 ± 2.15 | −15.55 ± 0.89 | −8.83 ± 0.62 | 93.05 ± 3.5 | −9.13 ± 0.73 | −6.92 ± 0.87 |
| P/P | ||||||||||
| TP | PEG/Dextran (PEG 8% and dextran 5%) | 96.68 ± 0.41 | −4.86 ± 1.51 | −4.59 ± 0.84 | 43.55 ± 3.5 | −16.28 ± 1.1 | −15.31 ± 1.4 | 97.38 ± 3.5 | −4.15 ± 0.84 | −3.61 ± 0.78 |
| BP | 93.9 ± 0.21 | −8.53 ± 0.9 | −5.58 ± 0.45 | 94.91 ± 4.15 | −7.74 ± 0.73 | −5.68 ± 0.94 | ||||
| TP | PEG/Dextran (PEG 6% and dextran 10%) | 97.71 ± 0.39 | −3.28 ± 0.54 | −3.02 ± 0.48 | 57.98 ± 3.78 | −20.68 ± 1.11 | −16.73 ± 1.23 | 98.31 ± 4.1 | −2.57 ± 0.54 | −1.9 ± 0.54 |
| BP | 94.49 ± 0.41 | −7.82 ± 0.51 | −6.12 ± 0.64 | 94.11 ± 3.62 | −8.64 ± 0.47 | −6.02 ± 0.98 | ||||
| TP | PEG/Dextran (PEG 4% and dextran 13%) | 95.41 ± 0.38 | −6.53 ± 0.48 | −4.61 ± 0.41 | 54.33 ± 3.57 | −19.39 ± 0.99 | −17.95 ± 0.97 | 95.88 ± 2.95 | −6.32 ± 0.34 | −4.67 ± 0.77 |
| BP | 97.46 ± 0.47 | −3.9 ± 0.5 | −3.75 ± 0.33 | 97.17 ± 3.15 | −4.54 ± 0.23 | −4.32 ± 0.84 | ||||
| Maltodextrin (15%) | 95.78 ± 0.64 | −6.19 ± 0.6 | −4.42 ± 0.54 | 66.49 ± 3.25 | −19.29 ± 0.89 | −14.66 ± 0.94 | 95.76 ± 3.0 | −5.85 ± 0.41 | −4.14 ± 0.96 | |
| Crude extract | 91.1 ± 0.22 | −13.03 ± 0.44 | −9.64 ± 0.39 | |||||||
Values are averages±standard deviation from three replicate (n = 3) analyses
TP Top phase, BP bottom phase