PDF《矿物质含量》

Vol.

33 No.

1 Jan.

2013 第33 卷第1期2013 年1月中南林业科技大学学报Journal of Central South University of Forestry &

Technology 收稿日期:2012-10-10 基金项目:中南林业科技大学校青年基金(2009019B);

国家林业公益性行业科研专项 (201104044) 作者简介:陆俊(1978-),湖南怀化人,讲师,博士研究生,主要从事天然产物研究与开发工作 通讯作者:李忠海(1960-),湖南岳阳人,教授,博士,主要从事森林保健食品的研究与开发工作;

E-mail: lizh11@163.com 鸭儿芹 Cryptotaenia japonica Hassk 属伞形科 多年生草本植物,又名三叶芹,鸭脚板、鹅脚板, 鸭儿芹的药用极广,中医认为全株可入药,具有 消炎、解毒、活血消肿的功效,主治肺炎、肺脓肿、 淋病、感冒咳嗽、跌打损伤,外用治皮肤瘙痒等 用火焰原子吸收光谱法测定

3 种野生蔬菜中

7 种 矿物质含量 陆俊1,2 , 刘婷3,李忠海 1,2 (1. 中南林业科技大学 食品科学与工程学院, 湖南 长沙 410004;

2. 稻谷及副产物深加工国家工程实验室, 湖南 长沙 410004;

3. 中国检验认证集团湖南有限公司,湖南 长沙 410007) 摘要:采用湿法消解法、干式灰化法处理样品,应用火焰原子吸收光谱法测定了湖南

3 种野生蔬菜鸭儿芹、 水竹竹笋、蕨菜中 Na、Ca、Mg、Fe、Cu、Zn、Mn 等7种矿物质元素的含量.研究结果表明:该方法的样本测 定结果 RSD 小于 1.21%, 实验回收率在 97.5% ~ 102.5%,具有良好的准确度和精确度.此外,3 种野生蔬菜中 矿物质含量丰富,尤其以钙、镁、铁、锌等矿物质元素含量最多,鸭儿芹、水竹竹笋除铜元素外,其它各元素 均高于所列的同种属蔬菜,其中鸭儿芹的钙、镁含量是

3 种蔬菜中最高的,其钙含量达到了 212.25mg/100g, 是 芹菜的 2.65 倍, 镁含量达到了 50.8mg/100g, 是芹菜的 2.82 倍;

而蕨菜的锰含量在

3 种野生蔬菜中最高,达到了 2.96 mg/100 g,3 种野生蔬菜都具有很好的加工利用价值. 关键词:矿物质含量 ;

野生蔬菜;

火焰原子吸收光谱法 中图分类号:S639.9;

O657.31 文献标志码:A 文章编号:1673-923X(2013)01-0119-04 Determination of seven mineral elements contents in three wild vegetable by flame atomic absorption spectrometry LU Jun1,2 , LIU Ting3 , LI Zhong-hai1,2 (1. School of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, China;

2. National Engineering Laboratory of Rice and By-product Deep Processing, Changsha 410004, Hunan, China;

3. China Certification and Inspection Group Hunan Co., Ltd., Changsha 410007, Hunan, China) Abstract: The contents of seven kinds of mineral elements such as K, Na, Ca, Mg, Fe, Mn, Zn in Cryptotaenia japonica Hassk, Phyllostachys heteroclada oliver, Pteridium aquilinum var. latiusculum from Hunan province were determined by flame atomic absorption spectroscopy after the samples were digested by wet digestion and dry ashing methods. This method exhibited spike recoveries for

7 mineral elements from 97.5% ~ 102.5% and RSDs of sample results was less than 1.21%, with good accuracy and precision. In addition, the experimental results indicate that there were abundant elements in three kinds of wild vegetables, especially rich in Ca, Mg, Fe, Zn. Except the content of Cu, others elements contents in C. japonica, P. heteroclada oliver all higher than theirs related species vegetables , the contents of Ca, Mg in C. japonica were the highest in three wild vegetables, the Ca and Mg contents were respectively 212.25 mg/100g , 50.8 mg/100g, and respectively 2.82, 2.65 times of contents of celery, and the contents of Mn in P. aquilinum var. latiusculum was 2.96 mg/100g ,which was the highest in three vegetables. All of the three wild vegetables have high development and utilization values. Key words: mineral elements content;