Table 2. Effect of hot air drying and freeze drying on the color characteristics of different persimmon leaves
Harvesting time | Cultivar | Hot air drying | Freeze drying |
L*value | a*value | b*value | L*value | a*value | b*value |
25th May (flowering) | Sangju-dungsi | 52.44±0.361) | 2.22±0.01b2) | 13.96±0.30 | 59.17±0.32c | 1.44±0.04d | 18.60±0.29b |
Sangam-dungsi | 54.07±0.85 | 1.47±0.05c | 12.31±0.42 | 62.14±0.39a | 1.42±0.02d | 20.13±0.16a |
Cheongdobansi | 53.17±0.59 | 2.15±0.09b | 13.93±0.56 | 57.92±0.07d | 2.06±0.01b | 15.96±0.02d |
Gabjubaekmok | 54.07±0.28 | 2.47±0.13a | 14.82±0.38 | 60.61±0.24b | 2.31±0.02a | 18.95±0.10b |
Suhong | 52.46±0.60 | 2.02±0.03b | 12.25±0.42 | 60.29±0.29b | 1.83±0.04c | 17.65±0.11c |
25th June (fruiting) | Sangju-dungsi | 51.34±0.09c | 2.39±0.01b | 15.44±0.15a | 58.41±0.21 | 0.67±0.02d | 18.72±0.06ba |
Sangam-dungsi | 52.71±0.19b | 1.95±0.01c | 13.78±0.14c | 59.36±0.35 | 0.79±0.02c | 18.44±0.11b |
Cheongdobansi | 52.54±0.19b | 1.98±0.01c | 14.75±0.23b | 58.78±0.60 | 1.00±0.02b | 17.57±0.27c |
Gabjubaekmok | 53.68±0.19a | 2.51±0.05a | 15.51±0.24a | 58.95±0.19 | 1.45±0.04a | 18.83±0.06ba |
Suhong | 52.79±0.14b | 1.84±0.02d | 15.16±0.20ba | 59.51±0.15 | 0.82±0.01c | 19.10±0.07a |
1) Results are expressed as the mean±standard error of three measurements (n=3).
2) Lower case letters within column of the different cultivars across same harvesting time are significantly different (p<0.05).