多指标正交试验法优选京大戟醋制工艺

目的:优选京大戟最佳醋制工艺。方法:采用L9(34)正交设计试验,以用醋量、醋水比例、煮制火候作为考察因素,以大戟二烯醇含量、醇浸出物、水浸出物、饮片外观、断面性状多指标综合加权评分为指标,优选京大戟炮制工艺。结果:优选出京大戟最佳炮制工艺为每100 g药材加入醋30 g和水270 g的醋水混合液,拌匀,闷润,文火煮至醋水被吸尽,取出,晾至6～7成干,切厚片。结论:本研究制定了京大戟炮制工艺量化技术参数,在该工艺技术条件下可生产出质量稳定可控的醋京大戟饮片。

Optimization of vinegar processing technique of Euphorbia pekinensis by multi-index orthogonal test

Objective: To optimize the vinegar processing technique of Euphorbia pekinensis. Method: The test was designed by using orthogonal table L₉ (3⁴). The factors were vinegar amount, proportion of vinegar and water and duration and degree of heating. An aggregative weighted method was used to optimize processing technology of E. pekinensis with content of euphol, extract of ethanol, extract of water and appearance and section were used as evaluative indicators. Result: The optimal processing of E. pekinensis was identified as adding the mixture of 30 g vinegar and 270 g water to 100 g herbs, mixing evenly and softening, cooking until exhaustion under slow fire, taking out and drying to degree 6-7, and then cutting into thick slices. Conclusion: The study defines parameters of the processing technique of E. pekinensis. The quality of E. pekinensis is stable and controllable under the technical conditions.