Table 1.
Extraction yields of phenyletanes and phenylpropanoids from R. rosea by ultrasonic-assisted extractions (UAE) with natural deep eutectic solvent (NADES) and 40% aqueous ethanol.
| Solvent | Extraction Yield (Mean ± SD), mg/g | ||||
|---|---|---|---|---|---|
| Cinnamyl Alcohol | Rosavin | Rosin | Salidroside | Tyrosol | |
| NADES LG | 0.11 ± 0.01 | 6.28 ± 0.02 | 0.32 ± 0.01 | 4.07 ± 0.02 | 0.33 ± 0.06 |
| NADES LF1 | 0.14 ± 0.02 | 8.42 ± 0.48 | 0.42 ± 0.01 | 5.66 ± 0.01 | 0.61 ± 0.02 |
| NADES LF2 | 0.26 ± 0.03 | 10.38 ± 0.03 | 1.11 ± 0.02 | 7.01 ± 0.06 | 0.33 ± 0.01 |
| EtOH 40% | 0.50 ± 0.01 | 12.11 ± 0.05 | 1.08 ± 0.02 | 10.70 ± 0.23 | 1.25 ± 0.01 |