西瓜皮营养成分分析  

Analysis of Nutrient Composition in Watermelon Peel

作　　者：韩明[1] 薛福玲[1] 蔺志铎[1] 吴冬青[1] 

机构地区：[1]西部资源环境化学重点实验室河西学院化学系,甘肃张掖734000

出　　处：《食品研究与开发》2010年第1期119-122,共4页Food Research and Development

基　　金：甘肃省教育厅科研资助项目(0509-02);西部资源环境化学重点实验室科研资助项目(xz0603)

摘　　要：以西瓜皮为试材,定量分析西瓜皮中的微量元素、VC和硝酸盐含量,并研究西瓜皮中黄酮类化合物对羟基自由基的清除作用。采用火焰原子吸收光谱法对西瓜皮中Ca、Na、Mg、Fe、Cu、Zn和Mn7种微量元素进行分析测定;利用邻二氮菲-Fe2+氧化法对西瓜皮中提取物清除羟基自由基作用的效果进行科学研究,结果表明:西瓜皮中富含对人体有益的微量元素,且VC含量较高,硝酸盐含量符合国家卫生标准。西瓜皮提取物对羟基自由基有明显的清除作用,清除率与黄酮含量呈正相关。Reach on the contents of microelement,vitamine C,nitrate and the effect of scavenging hydroxyl radical,with the watermelon peel as materials.The seven microelements were determined by FAAS.The method of phenanthroline-Fe2＋ reaction system was used to measure the scavenging ability of ·OH free radical.The results showed：They had many microelements that would good to human body.The content of vitamine C is high.The content of nitrate is better to agree with the request of the national standard.The extract showed obviously capacities of scavenging the free radical of·OH,and the scavenging rate was positive correlation.

关 键 词：西瓜皮 微量元素 VC含量 总黄酮 清除羟基自由基 

分 类 号：TS255.1[轻工技术与工程—农产品加工及贮藏工程]