Table 1. Moisture content, pH and soluble solid content of Platycodon grandiflorums depending on steaming methods and repeated steaming process
| Sample1) | Moisture content (%) | pH | Soluble solids (°Brix) |
| Control | 7.08±0.20a2) | 5.69±0.01a | 21.57±0.06d |
| Steaming | 6.92±0.19b | 5.49±0.01b | 22.77±0.06a |
| AS1 | 5.89±0.36c | 5.49±0.02b | 22.20±0.10b |
| AS2 | 4.93±0.54d | 5.03±0.01c | 22.40±0b |
| AS3 | 5.96±0.35c | 4.90±0.01d | 22.43±0.06b |
Control, not-steamed Platycodon grandiflorum; Steaming, steamed at 95 and dried Platycodon grandiflorum; AS1, autoclave steamed and dried Platycodon grandiflorum by one time; AS2, autoclave steamed and dried Platycodon grandiflorum by two times; AS3, autoclave steamed and dried Platycodon grandiflorum by three times.
Values are mean±SD of triplicate determinations. Different superscripts within a column indicate significant differences (p<0.05).