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对大黄素的超声提取工艺条件进行优化。采用单因素方法考察溶剂种类、提取时间、提取温度、提取次数对大黄素含量及提取率的影响。利用带交互作用的正交试验优化超声提取工艺条件,得到大黄素的最佳超声提取条件为:提取溶剂为含水量5%的乙醇水溶液,提取时间为40min,提取温度为58℃,提取次数为5次。
Emodin ultrasonic extraction process conditions were optimized. The influence of solvent type, extraction time, extraction temperature and extraction times on emodin content and extraction rate was investigated by single factor method. The optimum conditions for ultrasonic extraction of emodin were optimized by orthogonal experiments with interaction. The optimum extraction conditions for emodin were as follows: the extraction solvent was ethanol solution containing 5% water, the extraction time was 40 min, the extraction temperature was 58 ℃, the extraction times were 5 times.