石榴皮多酚类物质提取工艺研究

Study on Extraction of Polyphenols from Pomegranate Peel

以干燥石榴皮粉末为原料,通过单因素试验和正交试验,研究从石榴皮中提取多酚类化合物的最佳工艺。结果表明,料液比和提取温度对总多酚得率影响较大,最终确定了石榴皮多酚类物质提取的最佳工艺条件为:乙醇体积分数50%,提取时间90 min,料液比1∶25(g/m L),提取温度60℃,在此条件下石榴皮总多酚得率为22.92%。

With pomegranate peel as raw material, the extraction of total polyphenols from pomegranate peel was studied. The results showed that material to liquid ratio and temperature had significant effects on extraction yield of total polyphenols, and the optimum extraction conditions were as follows： alcohol concentration 50%, extraction time 90 min, material to liquid ratio 1 ： 25 （g/mL）, temperature 60 ℃. Under those conditions, the yield of polyphenols from pomegranate peel was 22.92%.