以生姜加工的废弃物生姜皮为原料，提取生姜皮中总黄酮。采用乙醇浸提法，以总黄酮得率为提取指标，通过单因素实验和正交试验研究生姜皮总黄酮的最佳提取工艺。结果表明：生姜皮中总黄酮的最佳提取工艺为乙醇浓度75%、、浸提时间5.5 h、浸提温度60 ℃、料液比1:45，此条件下总黄酮得率0.61%。

The extraction technology of ginger flavonoid from ginger peel with alcohol soaking was studied in this paper. The optimal extraction technological conditions of ginger flavonoid were obtained by single factor and orthogonal experiments. The results showed that the optimal extraction conditions of ginger flavones were alcohol concentration75%, temperature 60 ℃, ratio of materials to solvent 1:45 and extracting times 5.5 h, under which the yield of ginger flavonoid reached 0.61%.

广州市科技计划项目(12C12011620)