Table 3. Antioxidant capacities according to germination days of brown rice
Variety | Day | DPPH radical scavenging activity (IC50, mg/mL) | ABTS radical scavenging activity (IC50, mg/mL) | Total phenolic content (mg GAE/g) | Total flavonoid content (mg CE/g) |
Milyang356 | 0 | 0.60±0.01d1) | 0.23±0.00e | 1.23±0.01a | 0.87±0.04a |
1 | 1.10±0.01c | 0.50±0.01d | 0.86±0.01d | 0.54±0.02d |
2 | 1.14±0.01c | 0.84±0.01b | 0.86±0.01d | 0.68±0.06c |
3 | 3.30±0.05b | 1.13±0.04a | 0.97±0.01c | 0.65±0.01c |
4 | 3.42±0.05a | 0.63±0.00c | 1.08±0.01b | 0.80±0.05b |
Nampyeong | 0 | 2.24±0.02a | 0.66±0.01e | 0.60±0.01e | 0.55±0.01c |
1 | 2.05±0.02b | 1.07±0.02b | 0.68±0.02d | 0.62±0.03b |
2 | 1.64 ±0.02d | 0.91±0.02c | 0.70±0.01c | 0.63±0.04b |
3 | 1.90±0.01c | 0.82±0.01d | 0.78±0.01b | 0.67±0.04ab |
4 | 2.05±0.01b | 1.26±0.03a | 0.81±0.01a | 0.71±0.02a |
Dasan | 0 | 1.43±0.00c | 0.57±0.01d | 0.59±0.01e | 0.57±0.04bc |
1 | 1.33±0.01d | 0.55±0.01d | 0.64±0.00d | 0.53±0.05c |
2 | 1.24±0.00e | 0.84±0.02c | 0.72±0.01c | 0.60±0.01bc |
3 | 3.00±0.05b | 1.04±0.02b | 0.84±0.00b | 0.62±0.04b |
4 | 3.46±0.04a | 1.25±0.03a | 0.93±0.00a | 0.86±0.04a |
Standards | Ascorbic acid | 0.026±0.001 | - | - | - |
Trolox | - | 0.005±0.000 | - | - |
Mean±SD (n=3) followed by different letters are significantly different according to germinated time (p<0.05).