微波、超声及其联用萃取黄连中总生物碱的对比研究

采用紫外分光光度法,以黄连中总生物碱提取量为评价指标,对比了微波辅助萃取、超声辅助萃取、超声-微波联用辅助萃取、微波-超声联用辅助萃取黄柏中总生物碱,比较了4种不同萃取方式对提取量的影响。结果表明,在萃取黄连中总生物碱时,微波萃取优于超声萃取和超声-微波联用萃取;微波萃取和微波-超声联用萃取相比较,黄连中总生物碱提取量相差不大,说明微波萃取黄连中总生物碱比较完全,微波萃取后没有必要再用超声萃取。

Comparison of Microwave, Ultrasonic Wave and Their Combined Extraction Technology of the Total Alkaloid from Coptis Chinensis Franch

In terms of the total alkaloid from the coptis chinensis franch by the ultravoilet spectrophotometry,a comparison of microwave extraction,ultrasonic wave extraction,ultrasound-microwave combined extraction and microwave-ultrasound combined extraction of the total alkaloid from the coptis chinensis franch was studied.The results indicated that the microwave extraction was superior to the ultrasonic wave extraction and the ultrasound-microwave combined extraction.The content of the total alkaloid from the coptis chinensis franch was no obvious different for the microwave extraction and the microwave-ultrasound combined extraction.The coptis chinensis franch was completely extracted by the microwave extraction in no need of additional ultrasonic wave extraction.