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福建省茶叶产地溯源技术研究进展

Research Progress on Tea Origin Tracing in Fujian

  • 摘要: 福建省茶叶产业不仅产量和产值连续多年位居全国首位,而且拥有武夷岩茶、安溪铁观音、福鼎白茶等9种地理标志产品,但这些茶叶易被仿制,扰乱市场秩序。茶叶产地溯源技术对于保护福建省茶叶地理标志产品、维护消费者权益和促进茶产业健康发展具有重要意义。本文全面综述福建省茶叶产地溯源技术的研究情况,重点论述色谱技术、光谱技术、稳定同位素与元素分析技术、DNA分析技术等4种仪器分析技术结合机器学习算法构建原产地判别模型在福建省茶叶产地鉴别中的应用,以及地理标志防伪、“一品一码”追溯、二维码溯源等数字化全程追溯管理技术在福建省的实践,总结了福建省茶叶产地溯源技术的优势与面临的挑战。研究显示,福建省已形成多技术融合、多维度分析的茶叶产地溯源综合体系,对福建省内不同产地茶叶的判别准确率可达80.4%~100%。并提出建立福建省茶叶产地溯源综合示范基地、建立多元素-多成分-多同位素联用溯源检测技术、“化学特征”与“数字标签”绑定以提升福建茶叶溯源技术水平和建立一系列可用于产地溯源的福建茶叶标准物质等建议,为福建省茶叶原产地保护及产业发展提供重要参考。

     

    Abstract: Being ranked first in production and revenue for consecutive years in the country, Fujian tea industry is famed for its nine specialty teas, such as Wuyi Rock Tea, Anxi Tieguanyin, and Fuding White Tea. To properly protect the intellectual properties from counterfeiting, it has become of great importance to maintain a secure means for origin tracing. The applicable technology can not only ensure the authenticity of the products for the consumers but bring about market stability and healthy business development for the industry. This article comprehensively reviews studies in the arena in Fujian with summarized descriptions of the various applications of chromatographic, spectroscopic, stable isotope and elemental, and DNA-based technologies. The instrumental measurements are combined with advanced machine learning to construct models that are capable of accurately identifying and discriminating origin of a product as well as digitally tracing the locality with the one-product-one-code and QR coding system. The prospective advantages and remaining challenges in implementing the program are discussed. As indicated by the published studies, Fujian has established an 80.4%-100% accurate system using state-of-the-art technologies and multi-dimensional analyses. To help further refine and promote the application in the nation, the establishments of a station for comprehensive demonstration, “chemical characteristics” linked with “digital labels” to enhance the traceability level in Fujian, and finalized element/component/isotope standards would be highly recommended.

     

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