微波提取滩枣总黄酮工艺研究

Research on the Extraction of Total Flavonoids from Beach Jujube by Microwave

研究利用微波辅助提取陕北滩枣中总黄酮的最佳条件。考察微波功率、微波提取时间、加水量以及浸提剂pH等因素对陕北滩枣总黄酮得率的影响,并在单因素试验的基础上进行正交试验。最佳工艺条件为微波功率900W、微波提取时间100 s、加水量22mL/g、浸提剂pH为9.0、总黄酮得率为3.02%。微波辅助提取陕北滩枣总黄酮耗时短、效率高,对红枣的深开发利用有指导性意义。

The optimal condition of total flavonids extraction from beach jujube of northern Shaanxi by microwave was studied. The effects of single factors, such as microwave power, microwave treation time, ratio of liquid to raw materials, pH of extracting agent was investigated. The best technical conditions for total flavonids extraction was obtained through orthogonal experiments as follows： microwave power as 900 W, extraction period of 100 s, ratio of liquid to raw materials 22 mL/g and pH of extracting agent 9.0,the yield of total flavonoid was 3.02 %. Time and effect of total flavonids extraction from beach jujube of northern Shaanxi by microwave was shorter and higher, it is guiding significance for the development deeply and utilization of jujube.