Optimization of Preparation Technology of Zingiberis Rhizoma with Orthogonal Test

Objective: To optimize preparation technology of Zingiberis Rhizoma,in order to provide a reference for preparing Zingiberis Rhizoma liquor. Method: With composite score of contents of 6-gingerol and volatile oil as evaluation index,effects of slice specifications,drying temperature and drying time on preparation technology of Zingiberis Rhizoma was studied by orthogonal test. Result: Optimal preparation technology was to slice for 0. 3 cm,set oven temperature at 55 ℃ and dry for 18 h. Mass fractions of 6-gingerol and volatile oil were0. 914% and 1. 273%,respectively. Conclusion: This optimized preparation process is feasible and so can be used as process of pharmaceutical product for Zingiberis Rhizoma liquor.