The preparation process of curcuma longa was optimized by the orthogonal design,with the recovery of curcumins and soft extract as the index.

• 方法:采用单因素法,以姜黄挥发油收率为评价指标,优选姜黄挥发油提取工艺条件;采用正交试验法,以姜黄素、干膏率为评价指标,优选姜黄醇提工艺条件。