Table 5 Sensory evaluation scores of blanched radish (Raphanus sativus L.) by freezing and thawing methods (overall acceptability)

Sample Freezing method Thawing method Appearance Color Off-flavor Flavor Hardness Sweetness Saltiness Bitterness Umami Overall acceptability
Blanching (90°C at 3 min) RW1) - 5.60±1.45a 4.87±1.55a 5.60±1.06a 6.13±0.92NS 5.73±1.39 5.00±1.69 3.27±1.33 5.07±2.12 5.67±1.54 4.93±1.39b
Processed RW -20°C2) 4.33±1.35b 5.00±1.07a 4.07±1.39b 5.13±1.41 4.73±1.62 5.53±1.41 4.33±2.55 5.20±2.24 5.33±1.54 4.73±1.22b
-40°C3) 3.87±1.25b 3.40±1.18b 4.73±1.10ab 5.27±1.53 5.73±2.25 5.33±0.98 3..07±2.29 4.13±2.33 5.13±2.00 4.07±1.62b
Immersion (-60°C)4) 5.73±1.44 a 5.67±1.59 a 5.13±1.25 a 5.67±1.63 6.07±2.19 5.80±1.70 4.60±1.76 5.07±2.31 6.00±1.41 6.07±1.49 a
F-value 6.820** 7.324** 4.364* 1.551NS 1.388 0.786 2.214 0.719 0.811 5.019*
Means with different superscripts within the freezing method column are not significantly different.
significant different at p<0.01,
significant different at p<0.001,
Not significant (p<0.05)
RW : Thawing condition at running water temperature (20°C)
-20°C : Freezing in -20°C convectional freezing
-40°C : Freezing in -40°C convectional freezing
-60°C : Freezing in -60°C immersion freezing