百香果皮中黄酮的提取工艺研究.docx

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

Abstract

In 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 pas