Optimization of Ultrasound-Assisted Extraction of Flavonoids from <i>Celastrus hindsii</i> Leaves Using Response Surface Methodology and Evaluation of Their Antioxidant and Antitumor Activities

<div>Combined effects of the ultrasonic power and temperature on TFC at an extraction time (30 min) and ethanol concentration (70%).</div>

BioMed Research International

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Figure 2: Optimization of Ultrasound-Assisted Extraction of Flavonoids from <i>Celastrus hindsii</i> Leaves Using Response Surface Methodology and Evaluation of Their Antioxidant and Antitumor Activities 

Figure 2 | Optimization of Ultrasound-Assisted Extraction of Flavonoids from Celastrus hindsii Leaves Using Response Surface Methodology and Evaluation of Their Antioxidant and Antitumor Activities 