利用稳定同位素进行农产品溯源研究进展

随着消费者对农产品质量与安全要求的提高,农产品溯源保持着良好的发展态势。稳定同位素在农产品研究中应用广泛,主要包括农产品产地溯源、真伪鉴别等。在产地溯源方面,研究较多的是牛肉、羊肉、牛奶、葡萄酒、蜂蜜、水产品、茶叶、谷物等农产品。一直以来,缩小溯源区域范围是产地溯源的难点和重点。稳定同位素技术与矿物元素技术、氨基酸技术、脂肪酸技术相结合是缩小溯源区域范围的最佳方法。在农产品真伪鉴别方面,农产品掺杂掺假形式多样、手段复杂,消费者难以辨别。在农产品加工过程中稳定同位素分馏方面,研究已经展开,且逐步深入。本文综述了2015—2020年稳定同位素在农产品产地溯源、真伪鉴别以及加工过程中的分馏研究进展,阐述了稳定同位素与其他技术结合进行农产品溯源区域范围的研究,并对利用稳定同位素进行农产品溯源研究予以总结和展望。

Research Progress in Traceability of Agricultural Products Using Stable Isotope

With the enhancement of consumers' demands for the quality and safety of agricultural products, the traceability research of agricultural products keeps a good development trend. Stable isotope techniques are widely used in the research of agricultural products, including geographical origin traceability, authenticity identification and so on. In terms of geographical origin traceability, beef, mutton, milk, wine, honey, aquatic products, tea and grain have been investigated widely. It is difficult and important to narrow the scope of traceability area. The combination of stable isotope ratio with multi-element, amino acid and fatty acid content is the best way to narrow the traceability area. In terms of the authenticity of agricultural products, the variety and complexity of adulteration make it difficult for consumers to distinguish the true products. The fractionation of stable isotopes in agricultural products processing has been developed and gradually deepened. In this paper, the progress of the research on stable isotopes in the origin traceability, authenticity and fractionation process of agricultural products from 2015 to 2020 was reviewed. And the combination of stable isotope with other technologies for the geographical traceability of agricultural products was described. Furthermore, its deficiencies were summarized and prospected.