超声-微波协同作用对杭白菊汁水提影响的研究

Study of ultrasonic and microwave synergistic effect on aqueous extraction of Chrysanthemum Morifolium Ramat

采用超声-微波协同水提杭白菊汁。以总黄酮、绿原酸、固形物的提取率为指标,研究料液比、微波功率、提取时间对杭白菊水提液品质的影响。通过单因素和正交实验确定制备最佳条件:微波功率250W,提取时间240s,料液比1∶30(g∶mL)。此条件下,总黄酮提取率达62.20mg/g,绿原酸提取率达4.05mg/g,固形物提取率50.75%。与常温浸提、热回流、单独超声辅助、单独微波辅助法相比,本实验方法可在较低料液比下得到更高的提取率,且提取时间大大减少。

Chrysanthemum Morifolium Ramat（CMR） was extracted with water by ultrasonic-microwave synergistic method.The effect of solid-liquid ratio, microwave power and extraction time on the extraction yield of total flavonoids,chlorogenic acid and solid content of CMR water extract was studied.The optimal extraction conditions were determined through single-factor and orthogonal experiments as follows：microwave power 250W,extraction time 240s, and solid-liquid ratio 1＂30. Under above conditions, the extraction yield of total fiavonoids reached 62.20mg/g,while chlorogenic acid and solid content reached 4.05mg/g and 50.？5% respectively.Compared with traditional water extraction methods and lately new methods, ultrasonic or microwave method, the method studied in this paper has the advantages of low solvent Usa qe and hiqh efficiency.