Subcritical Water for Recovery of Polyphenols from Comfrey Root and Biological Activities of Extracts
{{output}}
In the present study, subcritical water was used for extraction of bioactive compounds of Symphytum officinale root. Temperature (120-200 °C), extraction time (10-30 min) and HCl concentration in extraction solvent (0-1.5%) were investigated as independent va... ...