Abstract Authentication of geographical origin is important in protecting agricultural products with registered trademarks. This study determined the geographical origin of garlic cultivated in the Republic of Korea using stable isotope ratios and multi-element concentrations. The isotope ratio reflected cultivation practice and environmental conditions. The major (Ca, Mg, P, S, Al, and Sr) and trace (As and Se) element concentrations were influenced by the bedrock in the garlic cultivation regions. Discriminant analysis (DA) using selected variables for garlic from different cultivation regions showed that 89% of the garlic was correctly classified according to the region of geographical cultivation with different lithological and climatic conditions. Stable isotopic compositions coupled to element concentrations showed better discriminating power than DA only with stable isotopic compositions or element concentrations. Therefore, the combination of a stable isotope ratio and multi-elemental concentrations is a useful tool for identifying garlic from different geographical origins.

中文翻译：

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基于同位素和多元素分析的韩国大蒜地理原产地鉴定

摘要 地理原产地认证是保护注册商标农产品的重要内容。本研究使用稳定同位素比率和多元素浓度确定了在大韩民国种植的大蒜的地理来源。同位素比率反映了栽培实践和环境条件。主要（Ca、Mg、P、S、Al 和 Sr）和微量（As 和 Se）元素浓度受大蒜种植区基岩的影响。对来自不同种植区域的大蒜使用选定变量进行的判别分析 (DA) 表明，89% 的大蒜根据不同岩性和气候条件的地理种植区域被正确分类。与元素浓度相结合的稳定同位素组成显示出比仅具有稳定同位素组成或元素浓度的 DA 更好的区分能力。因此，稳定同位素比率和多元素浓度的组合是识别来自不同地理来源的大蒜的有用工具。