2014•Hubei nongye kexueRequires access
Ultrasound-assisted Extraction and Antioxidative Activities of Total Flavonoids from Folium isatidis
Zhang Hai-ta
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Abstract
Using Folium Isatidis as material, the parameters of extraction technology of total flavnoids including ethanol concentration, ultrasonic time, material to liquid ratio and extraction times were studied with single factor experiments.The results showed that the optimal extraction conditions were extraction concentration of 70%, ultrosonic time of 30 min, materialto-liquid ratio of 1∶25 and extracting two times.