Voica Cezara, Feher Ioana, Puscas Romulus, Iordache Andreea Maria, Cristea Gabriela
National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat Street, 400293 Cluj-Napoca, Romania.
National Research and Development Institute of Cryogenics and Isotopic Technologies-ICSI Rm. Valcea, 4 Uzinei Str., 240050 Rm. Valcea, Romania.
Foods. 2025 Jul 10;14(14):2440. doi: 10.3390/foods14142440.
Nowadays, food traceability represents an important issue in the current context of trade agreements, which influence global food prices. Many consumers prefer to pay a higher price for a traditional cultivation regime of a certain food product that comes from a certain region, appreciating the taste of the respective foodstuff. The potato is now the world's fourth most important food crop in terms of human consumption, after wheat, maize, and rice. In this context, 100 potato samples from the Romanian market were collected. While 68 samples came from Romania, the rest of the 32 were from abroad (Hungary, France, Greece, Italy, Germany, Egypt, and Poland). The countries selected for potato sample analysis are among the main exporters of potatoes to the Romanian market. The samples were investigated by their multi-elemental and isotopic (H, O and C) fingerprints, using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and Isotope Ratio Mass Spectrometry (IRMS). Then, to distinguish the geographical origin, the experimental results were statistically processed using linear discriminant analysis (LDA). The best markers that emphasize Romanian potatoes were identified to be δC, δH, and Sr.
如今，在影响全球食品价格的贸易协定背景下，食品可追溯性是一个重要问题。许多消费者愿意为来自特定地区的某种食品的传统种植方式支付更高的价格，欣赏相应食品的味道。就人类消费量而言，马铃薯现在是世界上第四大重要粮食作物，仅次于小麦、玉米和水稻。在此背景下，从罗马尼亚市场收集了100个马铃薯样本。其中68个样本来自罗马尼亚，其余32个来自国外（匈牙利、法国、希腊、意大利、德国、埃及和波兰）。选择进行马铃薯样本分析的国家是罗马尼亚市场马铃薯的主要出口国。使用电感耦合等离子体质谱法（ICP-MS）和同位素比率质谱法（IRMS），通过多元素和同位素（H、O和C）指纹图谱对样本进行了研究。然后，为了区分地理来源，使用线性判别分析（LDA）对实验结果进行了统计处理。确定强调罗马尼亚马铃薯的最佳标志物为δC、δH和Sr。
