微波提取白附子美白成分的工艺研究

Microwave-assisted Extraction Technology of Skin-lightning Agent in Rhizoma Typhonii

以提取物对酪氨酸酶的相对抑制率为评价标准 ,进行了白附子美白成分的微波辅助提取工艺研究。得到了最佳微波提取工艺条件 :以水为提取剂 ,水与白附子的质量比为 10∶1,微波 4 5 0W提取 2次 ,每次提取 7min。提取物 (干基 )产率为 2 0 9% ,对酪氨酸酶的相对抑制率为 4 7 1%。与直接加热提取法进行了比较 ,结果表明 ,微波辅助提取能缩短提取时间 。

The microwave-assisted extraction (MAE) technology of skin-lightning agent in Rhizoma Typhonii was studied and the relative inhibitory activity of the extract against tyrosinase was used as evaluating criterion.It was concluded that the optimal condition was two doses of microwave radiation (450W) for 7min with a mass ratio of water to material of 10∶1.The dry extract of Rhizoma Typhonii with 20.9% yield and 47.1% relative inhibitory activity against tyrosinase was obtained.Compared with direct-heating extraction,MAE can shorten extracting duration,and improve relative inhibitory activity of the extract against tyrosinase.