Table 3.
The physiochemical characteristics and antioxidant phytochemicals of the juice samples.
| TC | DPPH (%) | TPC (mg GAE/100 mL Juice) | TFC (mg QE/100 mL Juice) | FRAP (μmol Fe2+/mL) | Vitamin C (mg/100 mL) | pH | TSS (°Brix) |
|---|---|---|---|---|---|---|---|
| NC | 37.87a ± 1.06 | 48.09a ± 0.23 | 19.54a ± 0.34 | 3.00a ± 0.05 | 9.14b ± 0.05 | 5.63k ± 0.15 | 9.95f ± 0.04 |
| PC | 39.95a ± 0.19 | 51.65b ± 0.57 | 20.23b ± 0.48 | 3.17b ± 0.05 | 8.63ab ± 0.19 | 5.45j ± 0.03 | 9.23c ± 0.03 |
| T1 | 63.26ef ± 0.37 | 110.70h ± 0.30 | 44.71g ± 0.39 | 6.48g ± 0.12 | 9.34b ± 0.08 | 5.34hi ± 0.04 | 9.15c ± 0.04 |
| T2 | 59.15de ± 0.07 | 101.51g ± 0.46 | 41.80d ± 0.33 | 5.82f ± 0.12 | 8.15a ± 1.77 | 5.26gh ± 0.04 | 9.10bc ± 0.02 |
| T3 | 54.30bc ± 0.07 | 91.77e ± 0.18 | 37.92e ± 0.16 | 5.44e ± 0.12 | 9.04b ± 0.03 | 5.42ij ± 0.04 | 9.20c ± 0.02 |
| T4 | 57.48cd ± 0.15 | 98.63f ± 0.41 | 40.85d ± 0.91 | 5.74f ± 0.03 | 9.20b ± 0.06 | 5.34hi ± 0.02 | 9.12bc ± 0.02 |
| T5 | 50.32b ± 0.12 | 84.82c ± 0.16 | 30.58c ± 0.58 | 4.89c ± 0.12 | 15.30g ± 0.46 | 4.07a ± 0.05 | 8.87b ± 0.05 |
| T6 | 53.13bc ± 0.11 | 89.96d ± 0.57 | 33.44d ± 0.35 | 5.16d ± 0.07 | 11.05cde ± 0.11 | 5.13de ± 0.03 | 10.26g ± 0.05 |
| T7 | 70.75h ± 0.22 | 128.84l ± 0.60 | 51.48i ± 0.48 | 7.50j ± 0.05 | 9.46b ± 0.08 | 5.27gh ± 0.06 | 9.16c ± 0.06 |
| T8 | 67.47fgh ± 0.48 | 119.65j ± 0.77 | 47.82h ± 0.56 | 6.92h ± 0.08 | 10.69cd ± 0.24 | 5.16ef ± 0.02 | 9.64e ± 0.03 |
| T9 | 64.96fg ± 0.14 | 113.02i ± 0.51 | 42.42fg ± 0.47 | 6.58g ± 0.07 | 14.91 g ± 0.11 | 4.91b ± 0.03 | 9.25cd ± 0.57 |
| T10 | 68.47gh ± 0.53 | 124.00k ± 0.41 | 49.19hi ± 0.16 | 7.15i ± 0.07 | 9.33b ± 0.12 | 5.24fg ± 0.03 | 9.13bc ± 0.03 |
| T11 | 77.88ij ± 0.17 | 151.50n ± 0.47 | 62.21k ± 0.33 | 8.59l ± 0.15 | 11.43de ± 0.28 | 5.06cd ± 0.05 | 9.56e ± 0.05 |
| T12 | 75.83i ± 0.25 | 144.75m ± 0.45 | 57.74j ± 0.28 | 8.17k ± 0.05 | 10.60c ± 0.21 | 5.23fg ± 0.04 | 9.09bc ± 0.03 |
| T13 | 91.30l ± 1.62 | 191.86r ± 0.23 | 77.31n ± 0.23 | 10.37p ± 0.1 | 17.82h ± 0.13 | 4.02a ± 0.05 | 8.63a ± 0.05 |
| T14 | 79.80ijk ± 0.25 | 158.12o ± 0.19 | 64.02kl ± 0.23 | 8.80m ± 0.14 | 12.25f ± 0.07 | 5.02c ± 0.06 | 9.48de ± 0.04 |
| T15 | 86.15kl ± 0.46 | 178.54q ± 0.50 | 72.39m ± 0.27 | 9.72o ± 0.05 | 17.09h ± 0.11 | 4.08a ± 0.03 | 8.61a ± 0.05 |
| T16 | 81.58jk ± 0.58 | 162.67p ± 0.72 | 64.97l ± 2.86 | 9.09n ± 0.03 | 11.75ef ± 0.07 | 5.14de ± 0.03 | 9.04bc ± 0.04 |
Mean ± standard deviation; n = 3; Means with similar letter within the same column do not differ significantly (p ≤ 0.05), according to DMRT; TC–treatment code.