Physicochemical properties | Zhuanghe city | Bin county | Beian city | Kedong county | Panshi city |
---|---|---|---|---|---|
Iodine value (g iodine/100 g fat) | 79.19 ± 7.03c | 99.09 ± 0.80a | 90.84 ± 2.02ab | 83.23 ± 4.09bc | 97.28 ± 4.41a |
Saponification value (mg KOH/g) | 193.52 ± 0.81ab | 199.60 ± 2.14a | 189.32 ± 3.24b | 187.68 ± 4.67b | 186.51 ± 5.67b |
Peroxide value (mEq/kg) | 10.60 ± 1.69a | 0.13 ± 0.03 cd | 0.07 ± 0.05d | 1.63 ± 0.08c | 4.03 ± 0.13b |
Acid value (mg KOH/g) | 13.02 ± 1.52a | 3.33 ± 0.34b | 0.97 ± 0.07c | 2.24 ± 0.22bc | 2.21 ± 0.07bc |
Colour | Â | Â | Â | Â | Â |
L* | 78.09 ± 4.32ab | 66.53 ± 3.75c | 78.78 ± 1.48a | 67.76 ± 4.08c | 71.79 ± 0.80bc |
a* | 7.61 ± 0.27c | 8.47 ± 0.90b | 4.51 ± 0.06e | 10.29 ± 0.11a | 6.07 ± 0.07d |
b* | 121.35 ± 5.97a | 105.68 ± 4.81c | 119.25 ± 1.78ab | 111.10 ± 6.04bc | 111.84 ± 0.91bc |