本文已被:浏览 1101次 下载 0次
投稿时间:2017-04-07
投稿时间:2017-04-07
中文摘要: 采用30%、50%、70%、90%的乙醇回流提取芒果核多酚物质,把提取液浓缩浸膏,依次采用硅胶柱层析法、薄层色谱跟踪检测、红外光谱、核磁共振等方法进行检测分析。结果表明,30%和50%乙醇纯化物中主要成分是鞣酸,70%乙醇纯化物是鞣花酸,90%乙醇纯化物是蓖麻油酸,进一步的纯化单体分别为芥酸以及油酸甘油酯;抗氧化活性试验表明,芒果核多酚及其纯化物对羟基自由基(·OH)、DPPH自由基(DPPH·)清除作用明显,说明芒果核多酚具有很好的抗氧化活性,为芒果核的综合开发利用提供重要依据。
Abstract:Polyphenols of mango kernel seeds were extracted by different concentration of ethanol(30%,50%,70%and 90%),and then separated by silica gel column chromatography,thin layer chromatography.The structure of the purified compound products were analyzed by infrared spectrum and nuclear magnetic resonance.The main component purified by 30%or 50%ethanol was gallic acid,while 70%ethanol and 90%ethanol were ellagic acid and castor oil acid,respectively.The further purifying and identifying the component purified by 90%were determined to be erucic acid and 1,2-Dioleoy1-rac-glycerol.The results of antioxidation experiments showed that the purified polyphenols from mango kernel seeds had stronger antioxidant activity against hydroxyl radicals(·OH)and DPPH radicals(DPPH·),which would provide an important basis for comprehensive utilization of mango kernel.
文章编号:201722002 中图分类号: 文献标志码:
基金项目:国家自然科学基金(21365011);贺州学院博士启动基金(HZUBS201515);广西高校中青年教师基础能力提升项目(2017KY06556);广西特色果蔬深加工与保鲜技术研究(YS201601);‘广西特聘专家’专项(厅发[2016]21号)
作者 | 单位 |
康超1,2,李燕1,2,段振华1,2,罗杨合1,2,帅良1,2,伍淑婕1,2,* | 1.贺州学院食品科学与工程技术研究院,广西贺州542899;2.贺州学院食品与生物工程学院,广西贺州542899 |
引用文本: