Table 4.
Effect of NaCl on the separation of antioxidant peptides.
Aqueous two-phase system variable | DPPH (%) | ABTS | FRAP | |
---|---|---|---|---|
NaCl = 0 g/10mL | Top phase | 32.93 ± 0.07c | 42.51 ± 0.91b | 0.12 ± 0.00e |
Bottom phase | 22.04 ± 0.28d | 25.14 ± 0.16c | 0.29 ± 0.01b | |
NaCl = 0.40 g/10mL | Top phase | 64.77 ± 0.13a | 52.04 ± 0.11a | 0.37 ± 0.02a |
Bottom phase | 18.91 ± 0.53e | 14.47 ± 0.26e | 0.19 ± 0.01d | |
WPI hydrolysate | 49.53 ± 0.52b | 23.45 ± 0.19d | 0.24 ± 0.00c |
1The data (mean ± standard deviation) derived from 3 replicates as described in the Materials and Methods section.
2The difference between the mean values with the same superscript letter in the same column was significant at a 95% confidence interval.