枳壳发酵炮制前后的成分变化及工艺优化

Composition Changes of Aurantii Fructus before and after Fermentation Processing and Its Technology Optimization

目的:比较枳壳发酵炮制前后的成分变化并优化其发酵炮制工艺。方法:采用超高效液相色谱法对同一批枳壳药材及其发酵炮制品进行比较,确定枳壳发酵炮制后的色谱特征峰;以4个色谱特征峰的峰面积和样品霉变性状为指标,以发酵温度、发酵湿度、发酵时间为因素,设计L_9(3~4)正交试验优化枳壳发酵炮制工艺并进行验证。结果:枳壳经发酵炮制后明显产生2个单糖苷新成分;优化的枳壳发酵工艺为发酵温度30℃、发酵湿度70%、发酵时间7 d;验证试验结果显示,3次试验各指标的RSD均小于2.0%(n=3)。结论:发酵炮制可致枳壳发生明显的化学成分变化,优化的发酵炮制工艺可增加枳壳特征峰成分含量。

OBJECTIVE:To compare the composition changes of Aurantii fructus before and after fermentation processing and optimize its fermentation processing technology. METHODS:UPLC was conducted to compare the raw and fermentation processed products of same batch of Aurantii fructus,and ensure the chromatographic peaks after fermentation processing. Using peak areas of 4 chromatographic peaks and mildew characteristics of samples as index,fermentation temperature,humidity and time as factor,L_9(3~4)orthogonal test was designed to optimize the fermentation processing technology,and verified it. RESULTS:After fermentation processing,Aurantii fructus obviously showed 2 new monosaccharide glycosides components;the optimized fermentation technology was as follows as fermentation temperature of 30 ℃,humidity of 70% and time of 7 d;verification test results showed RSD of each indicator of decoction pieces prepared by optimized fermentation technology in 3 tests were lower than 2.0%(n=3).CONCLUSIONS:Fermentation processing may lead obvious chemical composition changes in Aurantii fructus;the optimized fermentation processing technology can increase the contents of characteristic peaks.