Table 4
Antioxidant activities of Makgeolli according to different fermentation temperature and periods
Antioxidant test | Treated conc. (μg/mL) | Antioxidant activities (%) |
20℃ | 25℃ | 30℃ | Positive controls |
3 days | 5 days | 7 days | 3 days | 5 days | 7 days | 3 days | 5 days | 7 days | BHA | α-Tocopherol |
DPPH | 1,000 | 46.39±1.47f1) | 48.74±0.57ef | 48.39±0.54ef | 51.26±0.77de | 48.15±0.73ef | 47.92±0.47ef | 47.92±2.42ef | 36.48±1.85gh | 38.36±2.75g | 91.57±0.09a | 91.31±0.09a |
500 | 28.97±0.51jk | 33.37±0.37hi | 30.79±1.30ij | 35.31±0.20gh | 29.15±1.42jk | 33.43±1.63hi | 30.38±0.90ij | 21.99±0.41m | 27.68±1.15jkl | 91.26±0.18a | 91.52±0.16a |
250 | 18.24±1.41no | 20.18±0.37mn | 18.06±0.71no | 22.17±0.54m | 18.71±3.20mno | 19.65±1.73mn | 18.12±1.50no | 12.38±0.30qrs | 25.92±0.77kl | 89.79±0.16a | 91.20±0.16a |
125 | 18.71±1.22mno | 15.31±2.80opq | 14.02±1.85pqr | 18.36±5.70no | 15.13±1.86opq | 18.65±2.86mno | 17.18±0.71nop | 17.24±1.80nop | 19.94±3.51mn | 77.54±0.82b | 56.34±0.72c |
62.5 | 10.26±2.60stu | 9.91±1.23stu | 8.62±0.27tuv | 10.85±2.24rst | 9.62±2.10stuv | 9.21±1.06stuv | 7.33±1.63tuv | 6.10±0.57vw | 13.90±4.17pqr | 53.93±0.87cd | 25.45±1.32l |
31.25 | 10.03±1.03stu | 7.92±1.67tuv | 6.63±1.48uvw | 9.79±4.22stuv | 9.15±2.90stuv | 8.45±1.86tuv | 9.27±.5.41stuv | 6.51±3.37uvw | 3.28±1.47w | 30.26±1.29ij | 12.83±1.25qrs |
ABTS | 1,000 | 86.46±0.35bc | 87.44±0.35b | 87.77±0.51ab | 87.61±0.25ab | 87.68±0.59ab | 87.67±0.49ab | 87.79±0.61ab | 86.63±0.74bc | 86.30±0.40bc | 89.44±0.39a | 84.84±0.15cd |
500 | 74.08±0.78g | 79.79±0.64f | 80.03±0.44f | 83.41±0.81de | 79.17±0.35f | 82.24±0.90e | 81.84±0.86e | 79.07±0.87f | 79.23±0.48f | 88.07±0.39ab | 81.77±0.39e |
250 | 56.67±0.67n | 63.74±0.70m | 65.85±0.81kl | 69.51±0.51i | 64.42±0.86lm | 68.76±0.77ij | 67.85±1.06ij | 68.31±0.95ij | 66.92±0.16jk | 87.22±0.26b | 79.56±0.26f |
125 | 37.80±0.36u | 45.02±0.53t | 48.73±1.33rs | 49.91±0.93qr | 47.47±1.41s | 51.78±0.59op | 53.22±5.22o | 50.35±1.48pqr | 51.36±0.67pq | 82.11±0.26e | 75.47±1.11g |
62.5 | 21.98±0.50B | 27.61±1.52A | 30.28±0.87yz | 31.22±1.15xyz | 29.75±0.85z | 33.76±1.81v | 31.81±1.05wxy | 32.65±0.34vwx | 33.36±0.56vw | 79.47±0.15f | 72.40±1.35h |
31.25 | 11.87±0.42F | 16.20±0.88E | 16.78±0.61E | 17.19±0.43DE | 17.26±0.46DE | 19.05±0.41CD | 17.90±0.96DE | 18.72±0.55CD | 20.41±0.32BC | 71.29±1.70h | 67.29±1.93jk |
Antioxidant test | Treated conc. (μg/mL) | 20℃ | 25℃ | 30℃ | Positive control |
3 days | 5 days | 7 days | 3 days | 5 days | 7 days | 3 days | 5 days | 7 days | Trolox |
FRAP | 1000 | 34.35±0.46h | 38.29±0.98g | 41.51±0.59ef | 43.64±0.23d | 42.33±0.92de | 40.62±0.41f | 37.55±0.46g | 31.60±1.13i | 28.81±0.93j | 92.27±0.25a |
500 | 18.48±1.19m | 23.06±1.31l | 24.35±0.32l | 28.01±0.39j | 23.00±0.79l | 26.13±0.00k | 23.36±0.25l | 18.81±0.28m | 16.15±1.11n | 92.26±0.07a |
250 | 11.73±0.66qr | 13.77±0.72op | 14.31±0.46o | 16.66±0.67n | 12.30±0.32pqr | 15.72±0.30n | 13.04±0.32opq | 12.30±0.32pqr | 11.10±2.80r | 92.66±0.07a |
125 | 6.39±0.56uv | 7.86±0.78t | 8.68±0.47st | 9.66±1.97s | 6.17±0.74uvw | 8.36±1.69st | 7.24±0.65tu | 7.86±0.18t | 5.30±1.15vwxy | 92.17±0.05a |
62.51 | 1.79±1.24DEF | 3.76±0.34zAB | 4.65±0.84xyzA | 5.74±0.65vwx | 4.08±1.21yzAB | 4.76±0.33wxyz | 3.07±0.34ABCD | 3.64±0.20zABC | 0.84±1.03ef | 90.19±0.20b |
31.25 | 1.43±1.09EF | 3.28±1.57zABCD | 2.96±0.53BCD | 3.41±0.91zABC | 2.15±0.53CDE | 3.18±0.72zABCD | 2.96±0.53BCD | 3.64±0.39zABC | 0.49±0.21f | 81.13±0.10c |
Values represent the mean±SD (n=3). Means with different superscript with the column are significantly different (p<0.05) by Duncan’s multiple range test.