作　　者： ; ; ;

机构地区： 华南理工大学轻工与食品学院轻化工研究所

出　　处： 《声学技术》 2005年第4期219-222,共4页

摘　　要： 设计了25kHz和40kHz的双频超声强化提取装置,以碘化钾中碘的释放量研究双频超声的空化效应,并以黄柏为原料研究双频超声对提取小檗碱的强化效果,结果表明:在相同实验条件下,双频超声的空化效应远大于单频超声的空化效应;25kHz与40kHz双频超声时的提取率为64.1%,单频25kHz及40kHz时的提取率分别为36.8%和19.0%,双频超声强化的提取率显著高于单频超声强化的提取率。研究还表明,双频超声强化可以降低提取温度,缩短提取时间,为热敏性药物的提取提供了新的强化方法。 A device using 25kHz and 40kHz ultrasound has been designed and use to study cavitational yield by iodine release yield of KI solution. The extraction is increased extracting berberine from phellodendron. The results show that, using dual-frequency, the cavitational yield is higher than that by using a single frequency under the same experimental condition. Extraction yield of 64.1% is obtained by dual-frequency, while extraction yields are 36.8% and 19.0% by using single frequency operation temperature and reduce the extraction time. special materials containing unstable compounds at high is provides a new method for enhancing temperature.

关 键 词： 空化效应 双频超声 提取 小檗碱

领　　域： [理学] [理学] [一般工业技术]