“…The effects of temperature (40,50,60,70, and 80 • C), extraction time (20,30,40,50, and 60 min), solvent-to-material ratio (10,12,14,16, and 18 mL/g), and the extraction power (40,80,120,160, and 200 W) were investigated for the effect on the extraction of HSYA and AHSYB. The results demonstrated that the yield of HSYA and AHSYB were increased between temperatures of 20 to 70 • C, and the values of the extraction yield reached a maximum at a temperature of 70 • C. Therefore, the temperatures of 60, 70, and 80 • C were selected for the RSM experiment.…”