The present invention relates to an optimal extraction method for a mixture of green tea and Artemisia princeps using an ultrasonic extraction method when extracting an extract by using the ultrasonic extraction method from the mixture of the green tea and Artemisia princeps, wherein the optimal extraction method comprises the following steps: (a) dividing and encoding a mixture ratio (X_1) of the green tea and the Artemisia princeps, a ratio (X_2) of a solvent (mL) and a solute (g), and an extraction time (X_3) as ultrasonic extraction conditions to establish an extraction plan of the extract of the mixture of the green tea and the Artemisia princeps; and (b) measuring the extraction yield of the extract of the green tea and the Artemisia princeps depending on each extraction condition by a reaction surface analysis method. According to the present invention, the response surface analysis method is used to measure each extraction yield to confirm the most excellent optimal extraction condition.;COPYRIGHT KIPO 2018
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