Research Article

Application of a Combined Homogenate and Ultrasonic Cavitation System for the Efficient Extraction of Flavonoids from Cinnamomum camphora Leaves and Evaluation of Their Antioxidant Activity In Vitro

Figure 2

Response surface and contour plots. (a) The reciprocal interaction of ethanol concentration and solvent-to-solid ratio on extraction yield. (b) The reciprocal interaction of ethanol concentration and solvent-to-solid ratio on the extraction yield. (c) The reciprocal interaction of homogenate/ultrasonic time and ultrasonic power on HUCSE process. (d) The interactive effect of solvent-to-solid ratio and ultrasonic power on the extraction yield.
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