Study on the Microwave-assisted Complex Extracton Technology of Flavonoid and Polysaccharide from Houttuynia Cordata Thunb

Using the drying power of Houttuynia cordata Thunb as the raw material, the comprehensive extracting technology of flavonoid and polysaccharide in Houttuynia cordata Thunb was studied. The results were as the follows:the optimal extraction technology condition was: firstly the Houttuynia cordata Thunb material was dealed with microwave, and its technology parameters were, the ratio between the weight of Houttuynia cordata Thunb and water was 1:25, microwave power was small, dealing-time were two minutes; secondly the Houttuynia cordata Thunb material was extracted by water, and its technology parameters were, abstraction temperature was 70℃, abstraction time was two hours, abstraction times were two.At this condition, the obtaining rate of flavonoid and polysaccharide of Houttuynia cordata Thunb was 1.606% and 5.274% with the total rate arnounting to 6.880%.