通过 Sr/Sr 同位素分析对来自意大利南蒂罗尔（South Tyrol）及周边地区的谷物进行地理溯源。
Geographic tracing of cereals from South Tyrol (Italy) and neighboring regions via Sr/Sr isotope analysis.
机构信息
Laboratory for Flavours and Metabolites, Laimburg Research Centre, Laimburg 6, Pfatten (Vadena), 39040 Auer, Italy.
Eco Research, Via Luigi Negrelli, 13, 39100 Bolzano, Italy; Faculty of Science and Technology, Free University of Bozen-Bolzano, Piazza Università 1, Bozen-Bolzano, 39100, Italy.
出版信息
Food Chem. 2023 Mar 30;405(Pt B):134890. doi: 10.1016/j.foodchem.2022.134890. Epub 2022 Nov 9.
The protection and promotion of agricultural niche products can be supported by the application of analytical techniques able to link food to its territory. This study aimed at exploring the possibility to discriminate between cereal samples from South Tyrol (Italy) and the neighboring regions (Trentino, East Tyrol, and North Tyrol) by their Sr/Sr ratios. Soil and grain (different species) samples were collected from around 100 fields in two sampling campaigns. No difference in the Sr/Sr ratios among different cereal species (p < 0.05) was found when cultivated on the same field. A high correlation between Sr/Sr ratios in cereal grains and soil samples was found, with results in line with the local geology characteristics. Cereal samples from South Tyrol showed relatively high Sr/Sr values (0.716 - 0.721, mean 50%), separating them from the other regions investigated and many cereal production areas of global importance.
应用能够将食品与其产地联系起来的分析技术，可以支持对农业特色产品的保护和推广。本研究旨在探索通过锶/锶比值来区分来自意大利南蒂罗尔地区（South Tyrol）及其周边地区（特伦蒂诺 Trentino、东蒂罗尔 Alto Adige 和北蒂罗尔 Nord Tirol）的谷物样品的可能性。在两次采样活动中，从大约 100 个田地采集了土壤和谷物（不同品种）样本。在同一田地上种植时，不同谷物品种之间的锶/锶比值没有差异（p < 0.05）。谷物籽粒和土壤样本之间的锶/锶比值高度相关，结果与当地地质特征一致。南蒂罗尔的谷物样品显示出相对较高的锶/锶值（0.716-0.721，平均值为 50%），将它们与其他研究地区以及全球许多重要的谷物产区区分开来。
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