Sample | Proximate composition (g/100 g)/Storage time (days) | ||
---|---|---|---|
Zero | 7 | 14 | |
Moisture | |||
Soymilk yogurt | 86.57 ± 0.15b | 89.13 ± 0.08b | 89.75 ± 0.07b |
Treated soymilk yogurt | 87.43 ± 0.09a | 88.57 ± 0.04b | 89.62 ± 0.12b |
Total solids | |||
Soymilk yogurt | 14.28 ± 0.07b | 10.87 ± 0.08b | 10.28 ± 0.06b |
Treated soymilk yogurt | 13.16 ± 0.03c | 10.23 ± 0.04b | 10.59 ± 0.3b |
Protein | |||
Soymilk yogurt | 4.79 ± 0.01b | 4.39 ± 0.02b | 3.85 ± 0.02b |
Treated soymilk yogurt | 3.48 ± 0.01a | 3.26 ± 0.01a | 3.19 ± 0.01c |
Fat | |||
Soymilk yogurt | 3.76 ± 0.02b | 3.57 ± 0.03a | 3.15 ± 0.09b |
Treated soymilk yogurt | 4.18 ± 0.03a | 3.72 ± 0.01b | 2.84 ± 0.05a |
Ash | |||
Soymilk yogurt | 0.67 ± 0.01b | 0.52 ± 0.01b | 0.48 ± 0.07b |
Treated soymilk yogurt | 0.74 ± 0.02c | 0.68 ± 0.02c | 0.55 ± 0.09c |
Carbohydrates | |||
Soymilk yogurt | 4.21 ± 0.05b | 2.39 ± 0.02b | 2.82 ± 0.02b |
Treated soymilk yogurt | 4.17 ± 0.04b | 3.77 ± 0.03c | 3.80 ± 0.03c |
pH | |||
Soymilk yogurt | 3.78 ± 0.01b | 3.65 ± 0.01b | 3.47 ± 0.02b |
Treated soymilk yogurt | 4.39 ± 0.02a | 4.19 ± 0.03a | 4.08 ± 0.06a |
TTA (g/L) | |||
Soymilk yogurt | 2.16 ± 0.02b | 2.17 ± 0.04b | 2.69 ± 0.03b |
Treated soymilk yogurt | 1.23 ± 0.02a | 1.24 ± 0.03a | 1.26 ± 0.05a |
Phytochemicals (Total phenols, µg/g) | |||
Soymilk yogurt | 52.68 ± 0.08b | 56.97 ± 0.03b | 60.34 ± 0.14b |
Treated soymilk yogurt | 58.73 ± 0.11c | 61.24 ± 0.05c | 63.67 ± 0.09c |
Total flavonoids (µg/g) | |||
Soymilk yogurt | 39.43 ± 0.07b | 42.86 ± 0.07b | 45.62 ± 0.10b |
Treated soymilk yogurt | 43.42 ± 0.09c | 47.52 ± 0.09c | 49.81 ± 0.12c |
Antioxidant activity | |||
Ferric-Reducing power (μg of ascorbic acid equivalents/mL) | |||
Soymilk yogurt | 124.7 ± 0.40b | 138.4 ± 0.09b | 142.8 ± 0.32b |
Treated soymilk yogurt | 125.2 ± 0.18b | 141.2 ± 0.05c | 143.9 ± 0.15b |
ABTS assay (μg of ascorbic acid equivalents/mL) | |||
Soymilk yogurt | 105.3 ± 0.21b | 109.5 ± 0.17b | 110.5 ± 0.16b |
Treated soymilk yogurt | 107.6 ± 0.17c | 111.3 ± 0.15c | 112.4 ± 0.18c |