豆瓣菜种质资源主要营养成分及重金属含量测定与评价  

Main Nutrient Components and Heavy Metal Contents of Watercress Germplasm Resources:Determination and Evaluation

作　　者：李双梅 黄新芳 彭静 朱红莲 刘玉平 李明华 钟兰 季群 匡晶 柯卫东 LI Shuangmei;HUANG Xinfang;PENG Jing;ZHU Honglian;LIU Yuping;LI Minghua;ZHONG Lan;JI Qun;KUANG Jing;KE Weidong(Institute of Vegetables,Wuhan Academy of Agriculture Sciences,Wuhan 430345)

机构地区：[1]武汉市农业科学院蔬菜研究所,武汉430345

出　　处：《中国农学通报》2022年第36期56-61,共6页Chinese Agricultural Science Bulletin

基　　金：“国家现代农业产业技术体系建设专项资金项目”(CARS-24-A-02);“水生蔬菜种质资源的收集、鉴定、编目、繁种与入库(圃)保存”(19210144)。

摘　　要：豆瓣菜是一种特殊的叶菜类水生蔬菜,为了解豆瓣菜的主要营养成分、重金属含量和豆瓣菜的食用安全性,以保存在国家种质武汉水生蔬菜资源圃的13份豆瓣菜种质资源为材料,采用现行国家标准,对其5种主要营养成分和4种重金属含量进行了测定与评价。结果表明,豆瓣菜的干物质、蛋白质、可溶性糖、粗纤维、维生素C含量分别为4.57%、1.49%、0.16%、0.62%、38.56 mg/100g。铅、砷、镉、汞含量分别为0.077、0.047、0.028、0.001 mg/kg。与32种新鲜绿叶蔬菜已知数据比较,豆瓣菜维生素C含量处于较高水平,干物质含量、蛋白质含量和粗纤维含量均处于较低水平。豆瓣菜作为旱生蔬菜栽培,其铅、砷、镉及汞等重金属含量符合食品安全国家标准的规定。Watercress is a special leafy aquatic vegetable.In order to understand the main nutrient components,heavy metal contents and edible safety of watercress,13 watercress germplasm resources preserved in the National Germplasm Wuhan Aquatic Vegetable Resource Garden were used as materials to determine the contents of 5 main nutrient components and 4 heavy metals according to current national standards.The results showed that the dry matter,protein,soluble sugar,crude fiber and vitamin C contents of fresh watercress were 4.57%,1.49%,0.16%,0.62%and 38.56 mg/100g,respectively.The contents of lead(Pb),arsenic(As),cadmium(Cd)and mercury(Hg)were 0.077 mg/kg,0.047 mg/kg,0.028 mg/kg and 0.001 mg/kg,respectively.Compared with the known data of 32 kinds of fresh green leafy vegetables,the vitamin C content of watercress was at a higher level,and the dry matter content,protein content and crude fiber content were at a lower level.Cultivated as a dryland vegetable,the heavy metal contents of watercress such as Pb,As,Cd and Hg were confirmed to meet the requirements of national food safety standards.

关 键 词：豆瓣菜(Nasturtium officinale) 种质资源 营养成分 重金属含量 食品安全 

分 类 号：S645.9[农业科学—蔬菜学]