连翘叶干燥方法的研究

目的确定连翘叶较好的干燥方法，为连翘叶的开发利用提供部分依据。方法采用RP—HPLC法，色谱柱为XTerraTMRP8（3．9mm×150mm，5μm）；流动相：乙腈-0．1％醋酸=12：88；连翘酯苷的检测波长为328nm，柱温为30℃。结果阴干、微波干燥、吸水纸吸湿干燥、蒸2—10min、煮2～10min处理的连翘叶中连翘酯苷含量较高；晒干、烘干、红外干燥、真空干燥处理的连翘叶中连翘酯苷含量较低。结论综合连翘酯苷含量、成本及操作难易度的因素，蒸2—10min或煮2～10min是连翘叶比较适宜的干燥方法。

Study of Drying Methods of Forsythia Suspense Leaves

Objective Better drying methods of Forsythia suspense leaves was studied to provide some basis for the development and utilization of Forsythia suspense leaves. Methods A RP-HPLC method was used on XTerraTMRP8 （3.9 mm× 150 mm, 5 μm） column with acetonitrile-0.1% acetic acid solution （12 ： 88） as mobile phase for forsythoside. The detection wavelength of forsythoside was at 328 nm and detection temperature was 30℃. Results The contents of forsythoside was higher when dry, microwave drying, absorbent paper drying, steaming 2- 10 min, cooking 2- 10 min was used to deal with Forsythia suspense leaves. The contents of forsythoside was lower when dried, drying, infrared drying, vacuum drying was used to deal with Forsythia suspense leaves. Conclusion Steaming 2-10 min, cooking 2- 10 min is more appropriate for drying of Forsythia suspense leaves, when factors of the contents of forsythoside, the cost and ease of operation were considerd.