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The physical properties of the encapsulated powder prepared with the optimal formulation, 35% (w/w) maltodextrin and gum Arabic (MD:GA, 1:1) with a ratio of aqueous bitter melon extract to MD:GA of 1.5:1 g/g.
| Physical Properties | ||
|---|---|---|
| Moisture content (%) | 2.82 ± 0.24 | |
| Water activity | 0.33 ± 0.01 | |
| Colour | Lightness | 92.41 ± 0.51 |
| Chroma | 7.82 ± 0.19 | |
| Hue | 94.79 ± 0.38 | |
| Bulk density (g/mL) | 0.50 ± 0.04 | |
| Water solubility index (%) | 93.20 ± 0.36 | |
| Water absorption index (%) | 1.63 ± 0.03 | |
