[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 (3(4)). 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.