Sensory data (color)
| Sample | NIB-0641 | |
| Crude drug latin name | MOUTAN CORTEX | |
| Powder color | L*=88.96, a*=1.73, b*=8.63 | |
| Alcoholic extract | L*=98.60, a*=-0.29, b*=4.67 | |
| Water extract | L*=97.38, a*=-0.09, b*=5.37 | |
| Water extract (Fe) | L*=18.18, a*=20.11, b*=28.37 | |
| Water extract (Na) | L*=85.87, a*=0.26, b*=30.10 | |
| Water extract (I) | L*=93.99, a*=-0.58, b*=20.50 | |