2012•Northern HorticultureRequires access
The Application of Extracting Flavonoids from Sweet Potato Leaves by Orthogonal Method
Qingfu Chen
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Abstract
In order to select the optimum extraction scheme of flavonoids from sweet potato leaves,the six-factor-three-level orthogonal experiment was established to extract flavonoids from sweet potato leaves,using 'Yuzi-263' as the experimental materials.The results showed that when alcohol concentration was 60%,liquid material ratio 1∶20(w/v),extraction temperature 40℃,distilled 20 minutes,extract times 3 times,ultrasonic wave power 187.5 W were the optimum extraction method,under this scheme,it was stable in extraction amount,simple in operation and feasible in practice.