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地理来源对猪肉的同位素和元素组成的影响

Adriana Dehelean¹, Ioana Feher¹, Puscas Romulus¹

¹National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat Street, 400293 Cluj-Napoca, Romania.

Foods (Basel, Switzerland)

|January 17, 2024

概括

这项研究使用同位素和元素分析来追踪猪肉的来源. (δ2H),氧 (δ18O) 和 (K) 等关键元素有效地将罗马尼亚猪肉与进口来源区分开来.

科学领域:

食品科学食品科学食品科学
分析化学分析化学
地质化学地质化学

背景情况:

猪肉是全球主要的肉类来源,消费者越来越重视来源和生产方法.
消费者选择受到食品质量,动物福利和地理来源的影响.
了解猪肉的地理来源对于真实性和消费者信任至关重要.

研究的目的:

确定关键的同位素和元素标记,用于分类猪肉的地理来源.
为准确的猪肉样本分类开发化学模型.
评估与猪肉中的金属度相关的潜在健康风险.

主要方法:

在猪背样本中分析同位素指纹 (δ2H, δ18O, δ13C) 和29个元素.
化学测量方法的应用,包括线性差异分析 (LDA).
基本元素 (K, Na, Mg, Ca, Zn, Fe, Cu, Cr) 和微量金属 (As, Cd, Sn, Pb) 的量化.

主要成果:

对δ2H的同位素值在-71.0~21.2‰之间,对于δ18O则在-9.3~2.8‰之间.
在初始分类中,LDA模型获得了91.4%的准确性,在交叉验证中达到90%.
(δ2H), (K), (Rb) 和 (Pd) 是罗马尼亚和外国猪肉的关键区分因素.
从分析的金属 (As,Cd,Sn,Pb,Cu,Zn) 中没有发现致癌风险.

结论:

同位素和元素分析,结合化学测量,可靠地确定猪肉的地理来源.
δ2H,K,Rb和Pd是区分罗马尼亚和国外猪肉的重要标记.
在研究区域的猪肉消费不构成分析金属的致癌风险.

关键词:

在ICP-MS中,使用的是ICP-MS.在IRMS中,使用的是IRMS.化学测量方法化学测量方法地理来源的地理来源.猪肉猪肉猪肉是一种

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