Figure 1From: Optimization of ultrasonic extraction of polysaccharides from Ziziphus jujubaMill. by response surface methodologyResponse surface plot results on the yield of polysaccharides. (a) Response surface plot of ultrasonic power and extraction time, and their mutual interactions on the yield of polysaccharides. (b) Response surface plot of ultrasonic power and extraction temperature, and their mutual interactions on the yield of polysaccharides. (c) Response surface plot of extraction time and extraction temperature, and their mutual interactions on the yield of polysaccharides.Back to article page