石榴皮中多酚提取条件的优化  

Optimization of Extraction Condition of Polyphenols from Pomegranate Peel

作　　者：贾冬英[1] 姚开[1] 谭薇[1] 何强[1] 

机构地区：[1]四川大学轻纺与食品学院,四川成都610065

出　　处：《林产化学与工业》2006年第3期123-126,共4页Chemistry and Industry of Forest Products

基　　金：国家自然科学基金资助项目(20472058)

摘　　要：运用正交试验对石榴多酚的乙醇提取条件进行了优化。考察了影响石榴皮中多酚提取效果的4个因素。结果显示,石榴皮中多酚的最佳提取条件为:20%(体积分数)乙醇作溶剂,料液比(g∶mL)1∶20,温度50℃,提取时间1 h,以该优化条件提取时,多酚粗提物的得率44.98%,纯度50.12%,即石榴多酚得率达到22.86%。The extraction condition of pomegranate polyphenols was optimized by orthogonal experiment. The results showed that extraction temperature, extraction time, ratio of raw material to solvent and ethanol concentration had significant influences on pomegranate polyphenol extraction, of which the ratio of raw material to solvent exhibited the greatest effect on the extraction yield. The optimum extraction condition was as follows： ratio of pomegranate peel powder to ethanol-water （20 % , volume part） 1 ： 20 at 50 ~C for 1 h. Under this condition, the yield of polyphenols from pomegranate peel was 22.86 % while the yield of crude extract and polyphenol content in the extract were 44.98 % and 50.12 %, respectively.

关 键 词：石榴皮 多酚 

分 类 号：TQ91[化学工程] O629.9[理学—有机化学]