Table 3
Change in color of GSD and NSD dur ing the storage

Color Sample Storage period (day)
1 15 30 45
L GSD3) 62.8±0.7a2) 57.9±4.2b 56.1±2.1b 56.1±2.6b
NSD4) 60.9±2.8a 59.5±3.8a 58.4±1.9ab 56.3±2.3b
a GSD 9.4±0.5a* 8.7±0.6b* 8.5±1.0c* 8.3±0.8c*
NSD 8.5±1.3a 7.7±0.9b 7.8±0.4b 7.6±0.9b
b GSD 12.4±0.9a 10.9±1.3b 9.8±1.1c 9.6±1.6c
NSD 11.2±0.6a 10.7±1.1ab 10.3±0.7b 10.0±1.1b
Hunter L, lightness; Hunter a, redness; Hunter b, yellowness.
1)Values with between the two sample are significantly different at p<0.05.
2)a-cMeans±SD with different superscripts in the same column are significantly different (p<0.05) by Ducan's multiple range test.
3)GSD, general smoked duck.
4)NSD, natural smoked duck.