Preparation of paeoniflorin from the stems and leaves of Paeonia lactiflora Pall. ‘Zhongjiang’ through green efficient microwave-assisted extraction and subcritical water extraction

The aims of this study were to establish a green and efficient process for extracting paeoniflorin (PF) from the stems and leaves of the Paeonia lactiflora Pall. ‘Zhongjiang’ (PLP-SL). The microwave-assisted extraction (MAE) and subcritical water extraction (SWE) conditions of PF that was from PLP-SL were optimized through the response surface methodology. The optimal conditions of MAE were as follows: extraction solvent, 70% EtOH; microwave...