Research Article
Microencapsulation of β-Carotene by Spray Drying: Effect of Wall Material Concentration and Drying Inlet Temperature
Table 1
Experimental design with coded and decoded values of independent variables and spray drying responses.
| Run | Independent variables | Responses variables | Arabic gum (%) | T | LC | EE | AA | DY |
| 1 | 9.4 (-1) | 123.2 (-1) | 21.9 | 9.9 | 0.53 | 22.5 | 2 | 9.4 (-1) | 186.8 (+1) | 27.3 | 14.7 | 0.11 | 26.9 | 3 | 30.6 (+1) | 123.2 (-1) | 24.4 | 8.0 | 0.78 | 16.3 | 4 | 30.6 (+1) | 186.8 (+1) | 29.4 | 9.2 | 0.24 | 15.9 | 5 | 20 (0) | 155 (0) | 15.9 | 13.9 | 0.22 | 43.9 | 6 | 20 (0) | 155 (0) | 14.0 | 12.5 | 0.27 | 40.2 | 7 | 20 (0) | 155 (0) | 16.7 | 13.8 | 0.17 | 41.3 | 8 | 5 (-α) | 155 (0) | 33.6 | 16.0 | 0.05 | 23.8 | 9 | 35 (α) | 155 (0) | 26.4 | 12.2 | 0.30 | 23.2 | 10 | 20 (0) | 110 (-α) | 11.9 | 6.2 | 0.36 | 28.6 | 11 | 20 (0) | 200(+α) | 21.4 | 14.8 | 0.12 | 34.3 |
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T: temperature (°C); LC: loading capacity (mg β-carotene.g−1particles); EE: encapsulation efficiency (%); AA: antioxidant activity (μmol trolox.mg−1β-carotene); DY: drying yield (%).
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