辽宁地区16种蔬菜中的9种元素含量调查

Investigation on 9 kinds of mineral elements in 16 kinds of vegetables from Liaoning province

中文关键词:  电感耦合等离子光谱法  蔬菜  元素

英文关键词:inductively coupled plasma optical emission spectrometry  vegetables  mineral elements

中文摘要:

      目的 了解辽宁地区蔬菜中9种元素(K、Na、Ca、Mg、P、Fe、Mn、Cu、Zn)含量范围。方法 采用干灰化法消解蔬菜样品, 用电感耦合等离子光谱法(inductively coupled plasma optical emission spectrometry, ICP-OES)对16种蔬菜中9种元素进行测定。结果 蔬菜中矿物质元素含量非常丰富, 但不同蔬菜中各种元素含量存在一定差异, 同一种属不同种类的蔬菜元素含量也有所不同, 其中磷的含量在17~98 mg/100 g; 钾的含量在4~359 mg/100 g; 镁的含量在2~114 mg/100 g; 钠的含量在0~90.6 mg/100 g; 铜的含量在0~0.55 mg/100 g; 锌的含量在0~1.44 mg/100 g; 钙的含量在3~412 mg/100 g; 铁的含量在0.3~3.3 mg/100 g; 锰的含量在0~ 2.33 mg/100 g。结论 本研究结果不仅对人们日常饮食的选择提供科学依据, 同时也对蔬菜营养成分分析评价提供参考。

英文摘要:

      Objective To study the 9 kinds of mineral elements content of vegetables (K, Na, Ca, Mg, P, Fe, Mn, Cu, Zn) in Liaoning province. Methods The vegetable samples were digested by dry ashing method. Nine kinds of elements in 16 kinds of vegetables were determined by inductively coupled plasma optical emission spectrometry(ICP-OES). Results There were lots of mineral elements in vegetables. But there were some differences in the content of various elements in different vegetables, and different kinds of vegetables in the same genus also had different content of elements. The content of phosphorus was 1798 mg/100 g; the content of potassium was 4359 mg/100 g; the content of magnesium was 2114 mg/100 g; the content of sodium was 090.6 mg/ 100 g; the content of copper was 0-0.55 mg/100 g; the content of zinc was 01.44 mg/100 g; the content of calcium was 3412 mg/100 g; the content of iron was 0.33.3 mg/100 g; the content of manganese was 02.33 mg/100 g. Conclusion The results of this study not only provide a scientific basis for people's choice of daily diet, but also provide a reference for the analysis and evaluation of the nutritional composition of vegetables.