Traceability of Rizhao green tea origin based on multispectral data fusion strategy and chemometrics

文献类型： 外文期刊

第一作者： Guo, Mengqi

作者： Guo, Mengqi;Chen, Zhiwei;Ding, Zezhong;Wang, Dewen;Qi, Dandan;Lu, Min;Wang, Mei;Dong, Chunwang

作者机构：

关键词： Rizhao green tea; Origin traceability; Multispectral; Data fusion; Chemometrics

期刊名称：FOOD CHEMISTRY-X （ 影响因子：8.2； 五年影响因子：8.2 ）

ISSN： 2590-1575

年卷期： 2025 年 27 卷

页码：

收录情况： SCI

摘要： This study proposes a novel method that combines multispectral data fusion strategies with chemometric analysis for the origin traceability of Rizhao green tea. The research found significant differences in the sensory scores and key physicochemical components (catechins, caffeine, and amino acid content) between Rizhao green tea and tea from southern China. By integrating data from near-infrared and hyperspectral technologies, the prediction accuracy of multivariate models (including Partial Least Squares Regression (PLSR), Support Vector Regression (SVR), Random Forest (RF), and Convolutional Neural Networks (CNN)) was improved. The performance of the fused dataset outperformed single-spectral datasets. The study found significant spectral differences in tea samples from different regions, leading to robust differentiation. Both SVM and RF discriminant models based on near-infrared spectral data achieved 100 % accuracy. This method provides a reliable and efficient tool for green tea traceability, with potential applications in quality control and authenticity verification within the tea industry.

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