Table 3. Browning index of hot-water extract from dried persimmon leaves treated with steaming and freezing

Sample¹⁾	Browning index (Abs at 420 nm)
Control	0.45±0.00^b2)
ST	0.29±0.00^c
FT	0.54±0.01^a

Control, non-treated before drying for 12 h at 50°C; ST, treated with steam for 30 sec at 100°C; FT, treated with cold air for 15 days at -20°C. The dried persimmon leaf powder (2 g) was extracted with hot-water (200 mL).
Means±SD (n=3) in a column followed by different superscript letters are significantly different by Duncan’s multiple range test (p<0.05).