無機元素分析による冷凍サトイモの産地判別方法確立の検討(第1報)

  • 吉田 香
    京都光華女子大学健康科学部健康栄養学科
  • 岩崎 理紗
    京都光華女子大学健康科学部健康栄養学科
  • 寺本 敬子
    大阪市立大学大学院医学研究科産業医学

書誌事項

タイトル別名
  • Determination of the Geographic Origin of Frozen Taro by Inorganic Analysis
  • ムキ ゲンソ ブンセキ ニ ヨル レイトウ サトイモ ノ サンチ ハンベツ ホウホウ カクリツ ノ ケントウ(ダイ1ポウ)

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抄録

Food traceability systems are used to ensure food safety. The objective of this research was to develop a simple method to confirm the geographical authenticity of frozen taro. To characterize frozen taros according to their geographic origin and variety, 6 mineral and trace elements (Mg, Ca, Mn, Fe, Cu, and Zn) were determined in frozentaro samples using atomic absorption spectrophotometer (AAS). Mn, Cu, Ca and Mg concentration of frozen taro from China was higher than those from Japan. Liner discriminant analysis (LDA) was applied to discriminate the geographic origin between Japan and China. Using the established LDA model using 4 elements (Mn, Cu, Ca and Mg), 100% of samples were correctly determined. The results suggest that Chinese frozen taro could be distinguished from Japanese ones by determination of inorganic elements using AAS and by LDA using Microsoft Excel.

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