Optimized Conditions for Flavonoid Extraction from Pomelo Peel Byproducts under Enzyme- and Ultrasound-Assisted Extraction Using Response Surface Methodology

Figure 2

Contour plots (2D) showing the effect of different extraction parameters showing the effects of different extraction parameters on extraction yield of flavonoids from Da Xanh pomelo peel (a) at varying liquid to solid ratio and enzyme concentration, (b) at varying liquid to solid ratio and incubation time, (c) at varying liquid to solid ratio and ultrasonic time, (d) at varying enzyme concentration and incubation time, (e) at varying enzyme concentration and ultrasonic time, and (f) at varying incubation time and ultrasonic time.

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