云南榧子和香榧子营养成分比较研究  

Nutrients Comparative Study in Seeds of Torreya yunnanensis and Torreya grandis

作　　者：马长乐[1] 周稚凡[2] 李向楠[2] 付荣[1] 黄晓霞[1] 李靖[2] 

机构地区：[1]西南林业大学园林学院,云南昆明650224 [2]西南林业大学生命科学学院,云南昆明650224

出　　处：《食品研究与开发》2015年第14期92-94,共3页Food Research and Development

基　　金：国家自然科学基金项目(31360037);西南林业大学校重点基金项目

摘　　要：香榧种植已经成为浙江诸暨等地山区农民的主要经济来源,而云南榧子还未得到有效的开发利用。对云南榧子和香榧子的蛋白质、粗脂肪和矿质元素含量进行了测定和比较研究,采用凯式定氮法测定了两种榧子蛋白质含量,结果显示香榧子蛋白含量较云南榧子蛋白含量高;采用索氏提取法测定了两种榧子粗脂肪含量,结果显示云南榧子的粗脂肪含量低于香榧子;采用ICP-OES法测定了两种榧子20种矿质元素含量,结果显示两种榧子均富含矿质元素K、Mg、P、Ca、Na、Fe、Mn、Cu、S、Zn、Se,均为典型的高钾低钠食品。Torreya grandis plant had become main economic sources for mountain farmers such as zhuji in Zhejiang province, whereas seeds of Torreya yunnanensis had not been effectively used. Protein, crude fat and mineral elements content in seeds of T.yunnanensis and T. grandis were determined and compared in this study. Kjeldahl method was used to determine the protein content , and results showed that protein content in seeds of T. grandis was higher than that in T.yunnanensis. Soxhlet extraction method was used to determine the crude fat content, and results showed that crude fat content in seeds of T.yunnanensis was less than that in T. grandis. Twenty mineral elements of seeds were determined by ICP-OES. Results showed that seeds of T.yunnanensis and T. grandis were both rich in mineral elements K, Mg, P, Ca, Na, Fe, Mn, Cu, S, Zn and Se. They were typical high potassium and low sodium dried fruits.

关 键 词：云南榧 香榧 种子 营养成分 矿质元素 电感耦合等离子体发射光谱法 

分 类 号：S664.5[农业科学—果树学]