PMID- 36766027 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230213 IS - 2304-8158 (Print) IS - 2304-8158 (Electronic) IS - 2304-8158 (Linking) VI - 12 IP - 3 DP - 2023 Jan 21 TI - A Study on Origin Traceability of White Tea (White Peony) Based on Near-Infrared Spectroscopy and Machine Learning Algorithms. LID - 10.3390/foods12030499 [doi] LID - 499 AB - Identifying the geographical origins of white tea is of significance because the quality and price of white tea from different production areas vary largely from different growing environment and climatic conditions. In this study, we used near-infrared spectroscopy (NIRS) with white tea (n = 579) to produce models to discriminate these origins under different conditions. Continuous wavelet transform (CWT), min-max normalization (Minmax), multiplicative scattering correction (MSC) and standard normal variables (SNV) were used to preprocess the original spectra (OS). The approaches of principal component analysis (PCA), linear discriminant analysis (LDA) and successive projection algorithm (SPA) were used for features extraction. Subsequently, identification models of white tea from different provinces of China (DPC), different districts of Fujian Province (DDFP) and authenticity of Fuding white tea (AFWT) were established by K-nearest neighbors (KNN), random forest (RF) and support vector machine (SVM) algorithms. Among the established models, DPC-CWT-LDA-KNN, DDFP-OS-LDA-KNN and AFWT-OS-LDA-KNN have the best performances, with recognition accuracies of 88.97%, 93.88% and 97.96%, respectively; the area under curve (AUC) values were 0.85, 0.93 and 0.98, respectively. The research revealed that NIRS with machine learning algorithms can be an effective tool for the geographical origin traceability of white tea. FAU - Zhang, Lingzhi AU - Zhang L AD - College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China. FAU - Dai, Haomin AU - Dai H AD - College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China. FAU - Zhang, Jialin AU - Zhang J AD - College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China. FAU - Zheng, Zhiqiang AU - Zheng Z AD - College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China. FAU - Song, Bo AU - Song B AD - College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China. FAU - Chen, Jiaya AU - Chen J AD - LiuMiao White Tea Corporation, Fuding 355200, China. FAU - Lin, Gang AU - Lin G AD - Fujian Rongyuntong Ecological Technology Limited Company, Fuzhou 350025, China. FAU - Chen, Linhai AU - Chen L AD - Fu'an Tea Industry Development Center, Fu'an 355000, China. FAU - Sun, Weijiang AU - Sun W AD - College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China. AD - Institute of China White Tea, Fuding 355200, China. FAU - Huang, Yan AU - Huang Y AUID- ORCID: 0000-0002-1368-2851 AD - College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China. AD - Institute of China White Tea, Fuding 355200, China. AD - Anxi College of Tea Science, Fujian Agriculture and Forestry University, Quanzhou 362400, China. LA - eng GR - K1520005A04/Fujian Agriculture and Forestry University Tea Industry Chain Technology Innovation and Service System Construction Project/ GR - KHCZ2101A/Institute of Chinese White Tea Open Subjects/ GR - KHCZ2104A/Institute of Chinese White Tea Open Subjects/ GR - FJZTF01/Fujian Zhangtianfu Tea Development Foundation Science and Technology Innovation Fund/ PT - Journal Article DEP - 20230121 PL - Switzerland TA - Foods JT - Foods (Basel, Switzerland) JID - 101670569 PMC - PMC9914092 OTO - NOTNLM OT - geographic origin traceability OT - machine learning OT - near-infrared spectroscopy OT - white tea COIS- Jiaya Chen from LiuMiao White Tea corporation (the author contributed to the resources, the company provides a large number of experimental samples); Gang Lin from Fujian Rongyuntong Ecological Technology Limited Company (the author contributed to the resources, the company provides algorithmic support); Linhai Chen from Fu'an Tea Industry Development Center (the author contributed to the resources, the company provides a large number of experimental samples). EDAT- 2023/02/12 06:00 MHDA- 2023/02/12 06:01 PMCR- 2023/01/21 CRDT- 2023/02/11 01:05 PHST- 2022/12/27 00:00 [received] PHST- 2023/01/15 00:00 [revised] PHST- 2023/01/18 00:00 [accepted] PHST- 2023/02/11 01:05 [entrez] PHST- 2023/02/12 06:00 [pubmed] PHST- 2023/02/12 06:01 [medline] PHST- 2023/01/21 00:00 [pmc-release] AID - foods12030499 [pii] AID - foods-12-00499 [pii] AID - 10.3390/foods12030499 [doi] PST - epublish SO - Foods. 2023 Jan 21;12(3):499. doi: 10.3390/foods12030499.