食品科学

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微波消解-石墨炉原子吸收法测定小麦中锗的生物吸收比

高向阳1,3,高遒竹2,王长青3,陈启航3   

  1. 1.郑州科技学院食品科学与工程学院,河南 郑州 450064;2.江南大学食品学院,江苏 无锡 214122;
    3.河南农业大学食品科学技术学院,河南 郑州 450002
  • 出版日期:2014-04-25 发布日期:2014-05-13
  • 基金资助:

    河南省科技攻关项目(JBO2)

Determination of Germanium Bioabsorptivity in Wheat by Graphite Furnace Atomic Absorption Spectrometry after Microwave Digestion

GAO Xiang-yang1,3, GAO Qiu-zhu2, WANG Chang-qing3, CHEN Qi-hang3   

  1. 1. School of Food Science and Engineering, University for Science and Technology Zhengzhou, Zhengzhou 450064, China;
    2. School of Food Science and Technology, Jiangnan University, Wuxi 214122, China;
    3. College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, China
  • Online:2014-04-25 Published:2014-05-13

摘要:

研究小麦及其土壤中微量锗的相关性,为富锗小麦品种的选育和富锗功能性食品的开发提供科学依据,用 微波程序消解样品,用石墨炉原子吸收法测定郑州、漯河、巩义、焦作和商丘地区种植的彩色小麦和普通小麦及其 生长土壤中的锗含量。结果表明:郑州种植的小麦锗含量较高,其次是焦作地区。而小麦的生物吸收比与品种、土 壤的特性密切相关,郑州、漯河地区土壤中锗的含量相对丰富,郑州种植的蓝麦锗的生物吸收比达85.2%,而漯河 地区种植的灰麦生物吸收比最低为31.9%,蓝麦是较为理想的富锗食品原料,有一定的培育前景。

关键词: 小麦, 土壤, 锗, 生物吸收比, 微波消解, 石墨炉原子吸收法

Abstract:

The germanium contents in colored and ordinary wheat grains and wheat-field soils from Zhengzhou, Luohe,
Gongyi, Jiaozuo and Shangqiu of Henan province were determined by graphite furnace atomic absorption spectrometry after
microwave digestion and related between wheat grains and soil. The results showed that germanium content in wheat from
Zhengzhou was the highest followed by that from Jiaozuo. The bioabsorptivity of germanium in wheat was closely related
to wheat varieties and soil characteristics. Wheat-cropped soils from Zhengzhou and Luohe contained relatively abundant
levels of germanium. Blue wheat from Zhengzhou showed a bioabsorptivity of germanium as high as 85.2%. In contrast, the
lowest level of 31.9% was observed for grey wheat from Luohe. These results indicate that blue wheat can be a relatively
germanium-enriched food material and has promising prospects.

Key words: wheat, soil, germanium, biological absorption ratio, microwave digestion, graphite furnace atomic absorption spectrometry

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