石榴皮中多酚类物质的提取和组成分析  

Pomegranate Peel Polyphenols Extraction and Analysis

作　　者：唐丽丽[1,2] 刘邻渭[1] 孙丽芳[1] 秦燕[1] 李景景[1] 李璇[1] 

机构地区：[1]西北农林科技大学食品科学与工程学院,陕西杨凌712100 [2]杨凌职业技术学院生物工程系,陕西杨凌712100

出　　处：《食品研究与开发》2010年第5期121-126,共6页Food Research and Development

摘　　要：采用3种工艺条件提取6种石榴皮中的多酚类物质,测定提取液中总多酚、总黄酮和单宁的含量,以期为石榴皮的功能成分提取和分析方法的优化提供参考。结果显示:3种提取方法对总多酚和总黄酮提取量影响的差异性不显著,而对单宁提取量影响的差异极显著,即70%丙酮、70%乙醇和20%乙醇提取的单宁得率依次增高;石榴皮品种间总多酚、总黄酮和单宁含量的差异都极显著,不同的提取方法和石榴皮品种交互作用对总多酚、总黄酮和单宁的提取得率无显著性影响;3种提取方法所得不同品种石榴皮的提取液中总多酚、总黄酮和单宁含量两两间呈极显著的正相关关系(P<0.01)。The polyphenols were extracted with three methods from six pomegranate peels and the total polyphenol,total flavonoid and tannin of the extracts were detemined,in order to developing functional food and nutraceutical and optimizing analytical methods.The results showed that： The extraction method did not effected significantly on the extractive yield of total polyphenol and total flavonoid,but of tannin,to which the yields increased gradually with 70 % acetone,70 % ethanol and 20 % ethanol as extactive solvent respectively.The compounds’contents of different peels were different high significantly.The mutual effect between extraction method and variety of peel was no significant impact on the extractive yield.There were significant（P0.01） linear-correlations among the contents of the three compounds in anyone of the six peels,no matter which extractive method being used.

关 键 词：石榴皮 多酚 黄酮 单宁 

分 类 号：S665.4[农业科学—果树学]