Study on the optimization of extraction process of total flavonoids in chrysanthemum morifolium ramat

Using the total flavonoids production rate as an evaluation criterion,compared the methods of extracting the total flavonoids from different chrysanthemum materials,determined that the optimum extraction process was to use the direct reflux method A1B1C1 on the crushed chrysanthemum powder,namely,the ethanol concentration was 60%,the extracting temperature was 80 ℃ and the time was 1.0 h.