Table-1.
Phenol concentration (ppm) of herbal formula after sterilization with different method.
| Herbal formula | Sterilization method | ||
|---|---|---|---|
| Extract without sterilization (control) | Extract sterilized with syringe filter | Extract sterilized with autoclave | |
| Formula A | 2325.4±112.7a | 1858.7±38.9b | 2144.7±63.0a |
| Formula B | 2536.2±308.4 | 1940.3±179.3 | 2291.6±229.8 |
| Formula C | 3021.6±177.0a | 2452.4±70.7b | 2682.5±145.0ab |
Values are mean±SEM of triplicate tests;
ab
different superscripts in the same row are significantly different (p<0.05); sterilization methods applied were sterilization using syringe filter 0.45 μM and sterilization using autoclave at 121°C for 15 min