海带、紫菜两种海藻中矿物质营养元素的测定

陈巧

doi:10.13651/j.cnki.fjnykj.2020.08.003

海带、紫菜两种海藻中矿物质营养元素的测定

陈巧

Determination of Mineral Nutrient Elements in Kelp and Laver

CHEN Qiao

摘要

摘要: 为研究海带、紫菜两种海藻的营养价值与其所含矿物质元素的关系，也为人们健康合理饮食以及根据自身矿物质元素缺乏情况合理食用海带、紫菜两种海藻食品提供参考，采用微波消解联合电感耦合等离子体质谱法（ICP-MS）同时测定海带、紫菜中的Mg、Ca、Mn、Fe、Cu、Zn、Se共7种矿物质元素含量。结果可知，海带中7种矿物质元素的营养素参考值（NRV）分别为295%、130%、90%、306%、20%、17%、16%，紫菜中7种矿物质元素的营养素参考值（NRV）分别为185%、37%、149%、303%、118%、29%、34%，表明海带、紫菜含有丰富的Mg、Ca、Mn、Fe、Cu、Zn、Se等人体必需矿物质营养素，具有较高的食用价值和保健价值。

Abstract: In order to study the relationship between the nutritional value of two kinds of seaweed and its mineral elements, and also provide reference for people's healthy and reasonable diet and the reasonable consumption of kelp and laver according to their own lack of mineral elements, the contents of Mg, Ca, Mn, Fe, Cu, Zn and Se in kelp and laver were simultaneously determined by the microwave digestion combined with Inductively Coupled Plasma Mass Spectrometry (ICP-MS). The results showed that the nutrient reference value (NRV) of the 7 kinds of mineral elements in kelp was respectively 295%, 130%, 90%, 306%, 20%, 17% and 16%, and the nutrient reference value (NRV) of the 7 kinds of mineral elements in laver was respectively 185%, 37%, 149%, 303%, 118%, 29% and 34%. The results showed that kelp and laver were rich in the essential mineral nutrients such as Mg, Ca, Mn, Fe, Cu, Zn, and Se, which had high edible value and health value.

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