TABLE 4.
Physiochemical and chemical properties of fresh garlic and black garlic
Samples | G1 | G2 | G3 | G4 | G5 | G6 | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Fresh | Black | Fresh | Black | Fresh | Black | Fresh | Black | Fresh | Black | Fresh | Black | |
Physiochemical properties | ||||||||||||
Moisture content | 57.54 ± 0.45b | 32.41 ± 2.87c | 60.48 ± 0.89c | 25.96 ± 1.40ab | 58.62 ± 0.43c | 24.56 ± 1.91a | 55.86 ± 0.32a | 25.80 ± 0.85a | 55.52 ± 0.36a | 30.63 ± 0.62b | 56.36 ± 0.16ab | 53.12 ± 2.32c |
pH | 6.49 ± 0.02e | 3.79 ± 0.03c | 6.38 ± 0.01c | 3.63 ± 0.01b | 6.27 ± 0.00a | 3.80 ± 0.02c | 6.39 ± 0.01b | 3.53 ± 0.02a | 6.55 ± 0.03c | 4.04 ± 0.02d | 6.32 ± 0.02ab | 3.68 ± 0.01b |
OD420 | 0.21 ± 0.00a | 5.22 ± 0.22bc | 0.23 ± 0.02a | 6.55 ± 0.48bc | 0.23 ± 0.06a | 8.25 ± 0.96c | 0.24 ± 0.00a | 6.05 ± 0.42bc | 0.25 ± 0.00a | 6.52 ± 0.03ab | 0.33 ± 0.01b | 3.64 ± 0.28a |
Chemical properties | ||||||||||||
Thiosulfinate | 12.62 ± 0.71c | 3.19 ± 0.20a | 9.53 ± 0.62b | 2.74 ± 1.06a | 16.70 ± 0.57d | 3.10 ± 0.70a | 11.62 ± 0.01c | 2.40 ± 0.24a | 9.44 ± 0.05b | 3.650.24a | 9.23 ± 0.06b | 2.860.69a |
Total phenolic | 0.59 ± 0.05a | 5.32 ± 0.58c | 0.60 ± 0.02a | 4.58 ± 0.22b | 0.46 ± 0.04a | 6.32 ± 0.23d | 0.53 ± 0.04a | 6.26 ± 0.12d | 0.85 ± 0.01a | 6.69 ± 0.15d | 0.22 ± 0.02a | 5.58 ± 0.40c |
Total flavonoid | 0.30 ± 0.09a | 0.79 ± 0.09c | 0.27 ± 0.02a | 1.04 ± 0.07d | 0.35 ± 0.09a | 1.12 ± 0.13de | 0.28 ± 0.06a | 1.30 ± 0.08e | 0.14 ± 0.01a | 0.57 ± 0.04b | 0.34 ± 0.03a | 0.97 ± 0.10cd |
DPPH scavenging activity | 16.07 ± 0.10ab | 91.52 ± 3.69de | 15.83 ± 0.07ab | 87.12 ± 2.09cd | 9.28 ± 0.19a | 95.49 ± 1.21e | 16.22 ± 1.73ab | 94.59 ± 2.20de | 19.95 ± 4.21b | 90.62 ± 0.27cd | 12.17 ± 0.06a | 83.12 ± 4.93c |
Values are mean ± SD. Values followed by different letter in the same row are significantly different (p < .05) by Tukey's honesty significant difference test.
Abbreviation: DPPH, 2,2‐diphenyl‐1‐picrylhydrazyl.