摘要
为评价蒲菜薹的营养成分和重金属含量及其食用安全性,以香蒲中的水烛(Typha angustifolia)和宽叶香蒲(Typha latifolia)2 个种各1份种质为材料,采用现行国家标准,对蒲菜薹的14种营养成分和4种重金属含量进行测定.结果表明,蒲菜薹的干物质、蛋白质、粗纤维、可溶性糖、钾(K)、钠(Na)、钙(Ca)、镁(Mg)、铁(Fe)、锰(Mn)、铜(Cu)、锌(Zn)、磷(P)、砷(As)、镉(Cd)含量分别为47.00 g/kg、8.70 g/kg、5.10 g/kg、5.30 g/kg、2 560.50 mg/kg、189.50 mg/kg、685.00 mg/kg、164.00 mg/kg、2.23 mg/kg、14.86 mg/kg、0.28 mg/kg、3.22 mg/kg、316.50 mg/kg、0.007 4 mg/kg、0.002 5 mg/kg,未检出硒(Se)、铅(Pb)和汞(Hg).宽叶香蒲蒲菜薹营养成分含量总体高于水烛;与104～140种(品种)新鲜蔬菜营养成分已知数据相比,2种香蒲蒲菜薹均有较高含量的K、Na、Ca、Mn及较低含量的干物质、蛋白质、粗纤维、Fe、Cu、P;蒲菜薹的As和Cd含量较低,仅为食品安全国家标准规定限量值的1.25%～1.48%;蒲菜薹的Pb、As、Cd、Hg等重金属含量符合食品安全国家标准.
Abstract
In order to evaluate the nutrient components,heavy metal contents in aerial stem and rachis of common cattail and its edible safe-ty,two varieties belonging to Typha angustifolia and Typha latifolia respectively were used as materials to determine the contents of 14 kinds of nutrient components and 4 kinds of heavy metals according to current national standards.The results showed that the contents of dry matter,protein,crude fiber,soluble sugar,K,Na,Ca,Mg,Fe,Mn,Cu,Zn,P,Se,As and Cd were 47.00 g/kg,8.70 g/kg,5.10 g/kg,5.30 g/kg,2 560.50 mg/kg,189.50 mg/kg,685.00 mg/kg,164.00 mg/kg,2.23 mg/kg,14.86 mg/kg,0.28 mg/kg,3.22 mg/kg,316.50 mg/kg,0.007 4 mg/kg,0.002 5 mg/kg,respectively.Se,Pb and Hg were not checked out.The contents of nutrient component in Typha latifolia were higher than those of Typha angustifolia in the mass.Compared with the known data of 104-140 kinds of fresh green vegetables,the con-tents of K,Na,Ca and Mn in aerial stem and rachis of 2 species of common cattail were at a higher level,and the contents of dry matter,pro-tein,crude fiber,Fe,Cu and P were at a lower level.The contents of As and Cd were at a lower level which were 1.25%-1.48% of limited value of national food safety standards.The contents of heavy metal such as Pb,As,Cd and Hg in aerial stem and rachis were confirmed to meet the requirements of national food safety standards.
维普
万方数据