桑叶提取物对金属离子识别作用的研究  

Study on Metal Cation Recognition of the Extract of Fresh Morus aLba L.

作　　者：覃雯[1] 义祥辉[1] 邹碧群[1,2] 徐健飞[1] 张业[1] 

机构地区：[1]桂林师范高等专科学校化学与工程技术系,广西桂林541001 [2]广西师范大学化学化工学院,广西桂林541004

出　　处：《桂林师范高等专科学校学报》2009年第2期163-165,共3页Journal of Guilin Normal College

基　　金：广西区教育厅科研项目(200807MS076;200807MS075;200507067)

摘　　要：以超声波提取法和大孔树脂对桑叶进行初步提取,得到三个提取物(、、)。设计用桑叶提取物作为阳离子识别试剂,利用紫外吸收光谱法研究了桑叶提取物与不同金属离子的络合选择性。由研究结果可知,提取物和对Fe2+、Fe3+具有良好的识别作用,提取物对Fe3+表现出良好的识别作用,表明桑叶的药效作用可能与人体内的铁存在重要关系。Leaves of Morus atba L. was extracted with ultrasonic wave, and then treated with macroporous adsorption resin to get three extract Ⅰ , Ⅱ and Ⅲ. UV-vis spectroscopy was employed to study the properties of metal cation recognition of the extracts. The results showed that, extracts Ⅰ and Ⅱ showed favorable recognition abilities with both of ferrous and iron ion, while extract Ⅲ demonstrated only good binding activity with iron ion, indicating that iron atom should be associated to the medicinal mechanism of the extracts from Morus aLba L.

关 键 词：离子识别 桑叶提取物 超声波提取 

分 类 号：R282.71[医药卫生—中药学] O657.5[医药卫生—中医学]