本文通过超声波辅助提取法，确定百香果皮中黄酮的最佳提取工艺。试验考察提取时间、乙醇浓度、固液比、超声波功率和提取温度等五个影响因素对黄酮提取率的影响，最终得到的最佳优化工艺：超声波功率为 240 W，提取温度为 50℃，提取时间为 70 min，乙醇浓度为 90%，固液比为1:60 时，得到的百香果皮中含有的黄酮含量最高，为 3.79%。此试验确定了超声波辅助提取百香果皮中黄酮的最佳提取工艺，为百香果皮的进一步开发和利用提供依据。关键词：百香果皮；超声波提取法；黄酮AbstractIn this paper, the optimum factor of extracting flavonoids from passion fruit peel by ultrasonic assisted extraction was determined.The effects of five factors, such as solid-liquid ratio,ethanol concentration,ultrasonic extraction time,temperature and power,on the extraction rate of flavonoids were investigated.The optimized process parameters were as follows:ethanol concentration was 90%,solid-liquid ratio was 1:60,ultrasonic extraction power was 240 W, temperature was 50,time was 70 minutes,and the℃ highest content of flavonoids in the pericarp of passion fruit was obtained,which was 3.79%.This experiment determined the best extraction technology of Flavonoids from the pericarp of thymus by ultrasonic assisted extraction,and provided the basis for the further development and utilization of the pericarp of thymus.Key words:Passion fruit peel;ultrasonic extraction; flavonoids目 录1 引 言.............................................................................................................................12 方法及材料.........................................................................................................................22.1 仪器及药品.......................................................................................................................22.1.1 原料.........................................................................................................................
