Table 2.
Physicochemical characteristics of cactus pear peel and alcohol insoluble solids (AIS) prepared from cactus pear peel
| Physicochemical characteristics | Dried cactus pear peel (DCPP) | Cactus pear peel (AIS) |
|---|---|---|
| Moisture (%) | 11.2 ± 0.40 | 10.03 ± 0.14 |
| Ash (%) | 9.9 ± 0.30 | 9.05 ± 0.10 |
| Protein (%) | 3.5 ± 0.32 | 3.72 ± 0.20 |
| Fat (%) | 1.22 ± 0.18 | 1.44 ± 0.20 |
| pH | 5.7 ± 0.16 | 5.85 ± 0.10 |
| Total carbohydrate (%) | 85.38 ± 0.80 | 85.79 ± 0.50 |
| Minerals (g/kg) | ||
| Ca | 16.66 ± 0.12 | 44.04 ± 0.20 |
| K | 22.07 ± 0.22 | 21.49 ± 1.020 |
| Mg | 3.71 ± 0.18 | 5.69 ± 1.62 |
| Zn | 0.01 ± 0.02 | 0.02 ± 0.08 |
| Fe | 0.03 ± 0.01 | 0.06 ± 0.01 |
| Na | 0.94 ± 0.12 | 1.31 ± 0.18 |
| Se | 0.02 ± 0.08 | 0.02 ± 0.08 |
| L* | 60.02 ± 0.80 | 71.02 ± 1.02 |
| Colour value | ||
| a* | 3.75 ± 0.30 | 1.69 ± 0.71 |
| b* | 27.58 ± 0.27 | 20.22 ± 1.8 |
| c* | 27.90 ± 0.18 | 20.30 ± 1.4 |
| h* | 82.30 ± 1.2 | 85.20 ± 10 |
| ΔE | 83.70 ± 10 | 77.70 ± 0.80 |
| Bulk density (g/ml) | 1.14 ± 0.1 | 0.543 ± 0.11 |
| Swelling capacity (ml/g) | 3.50 ± 0.20 | 5.20 ± 0.18 |
| Water holding capacity (ml/g) | 3.70 ± 0.22 | 5.60 ± 0.24 |
| Oil holding capacity (ml/g) | 2.49 ± 0.14 | 2.95 ± 0.10 |
*The results are presented as the mean value ± SE. Values expressed with different treatments are significantly different at P < 0.05