| Color | △ | |||
|---|---|---|---|---|
| L* | a* | b* | ||
| Control | 71.69±2.82 | –1.68±0.29 | 22.23±0.60 | |
| SSP 5 | 64.33±1.23 | 1.38±0.11 | 19.35±0.34 | 6.85±0.62 |
| SSP 10 | 58.23±3.23 | 2.69±0.78 | 18.15±0.70 | 12.99±1.52 |
| SSP 15 | 53.88±1.21 | 3.70±0.23 | 17.07±0.14 | 17.82±1.47 |
| SSP 20 | 49.58±2.01 | 4.24±0.15 | 13.82±6.16 | 23.58±4.93 |