Table 4 Particle sizes (diameter, μm) in turmeric powder according to the various extract and drying method
From: Preparation of turmeric powder with various extraction and drying methods
Sample type | Mean (μm) | Median (μm) |
|---|---|---|
Control | 102.72 | 51.36 |
Spray drying | ||
Water | 1.21 | 0.61 |
50% ethanol | 23.36 | 11.68 |
Freeze drying | ||
Water | 13.81 | 6.91 |
50% ethanol | 36.53 | 18.27 |
70% ethanol | 85.24 | 42.62 |
Spray-freeze drying | ||
Water | 5.86 | 2.93 |
50% ethanol | 28.30 | 14.15 |
70% ethanol | 64.85 | 32.42 |