Origin Characteristics and Traceability Discrimination of Jiangxi Tea based on Rare Earth Element Contents
To investigate the rare earth elements residues in teas from Jiangxi Province in order to provide suggestions on reducing rare earth elements (REEs) contamination, and to improve the quality of tea. A method for geographical origin discrimination of tea from Jiangxi Province was established to provi...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
The editorial department of Science and Technology of Food Industry
2023-12-01
|
| Series: | Shipin gongye ke-ji |
| Subjects: | |
| Online Access: | http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2023010159 |
| _version_ | 1797397473270956032 |
|---|---|
| author | Zhiliang XU Xinquan ZHANG |
| author_facet | Zhiliang XU Xinquan ZHANG |
| author_sort | Zhiliang XU |
| collection | DOAJ |
| description | To investigate the rare earth elements residues in teas from Jiangxi Province in order to provide suggestions on reducing rare earth elements (REEs) contamination, and to improve the quality of tea. A method for geographical origin discrimination of tea from Jiangxi Province was established to provide technical support for the protection of geographical indication products and for tracing the geographic origin of agricultural products. One hundred and thirty-eight samples of tea were collected from three producing areas: The counties of Suichuan, Lushan and Wuyuan in this study. Inductively coupled plasma tandem mass spectrometry (ICP-MS/MS) was used to determine the contents of 15 rare earth elements in tea. Principal component analysis (PCA) and fisher linear discriminant analysis (FLD) were applied to differentiate the tea geographical origin. The results showed that the total amount of rare earth oxides in the teas were 0.44~1.57 mg·kg−1 and did not exceed the national limit standard of rare earth elements in tea (GB 2762-2012). After principal component analysis, three principal components were extracted from 15 rare earth elements (REEs), representing 90.66% of the total index information. Fisher discriminant analysis showed that the correct discriminant rates of back generation test and cross test were 100% and 99.3%. It is proved that rare earth elements (REEs) tracing technology can be used in tea origin discrimination and provide the identification basis for the protection of the origin of Jiangxi famous tea brands in the future. |
| first_indexed | 2024-03-09T01:10:31Z |
| format | Article |
| id | doaj.art-49d7e63a50f544959a7670f45e8ca7bb |
| institution | Directory Open Access Journal |
| issn | 1002-0306 |
| language | zho |
| last_indexed | 2024-03-09T01:10:31Z |
| publishDate | 2023-12-01 |
| publisher | The editorial department of Science and Technology of Food Industry |
| record_format | Article |
| series | Shipin gongye ke-ji |
| spelling | doaj.art-49d7e63a50f544959a7670f45e8ca7bb2023-12-11T05:43:26ZzhoThe editorial department of Science and Technology of Food IndustryShipin gongye ke-ji1002-03062023-12-01442424024610.13386/j.issn1002-0306.20230101592023010159-24Origin Characteristics and Traceability Discrimination of Jiangxi Tea based on Rare Earth Element ContentsZhiliang XU0Xinquan ZHANG1Development Research Institute of Testing and Certification Technology, Jiangxi General Institute of Testing and Certification, Nanchang 330000, ChinaDevelopment Research Institute of Testing and Certification Technology, Jiangxi General Institute of Testing and Certification, Nanchang 330000, ChinaTo investigate the rare earth elements residues in teas from Jiangxi Province in order to provide suggestions on reducing rare earth elements (REEs) contamination, and to improve the quality of tea. A method for geographical origin discrimination of tea from Jiangxi Province was established to provide technical support for the protection of geographical indication products and for tracing the geographic origin of agricultural products. One hundred and thirty-eight samples of tea were collected from three producing areas: The counties of Suichuan, Lushan and Wuyuan in this study. Inductively coupled plasma tandem mass spectrometry (ICP-MS/MS) was used to determine the contents of 15 rare earth elements in tea. Principal component analysis (PCA) and fisher linear discriminant analysis (FLD) were applied to differentiate the tea geographical origin. The results showed that the total amount of rare earth oxides in the teas were 0.44~1.57 mg·kg−1 and did not exceed the national limit standard of rare earth elements in tea (GB 2762-2012). After principal component analysis, three principal components were extracted from 15 rare earth elements (REEs), representing 90.66% of the total index information. Fisher discriminant analysis showed that the correct discriminant rates of back generation test and cross test were 100% and 99.3%. It is proved that rare earth elements (REEs) tracing technology can be used in tea origin discrimination and provide the identification basis for the protection of the origin of Jiangxi famous tea brands in the future.http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2023010159tearare earth elementprincipal component analysisdiscriminant analysisorigin traceability |
| spellingShingle | Zhiliang XU Xinquan ZHANG Origin Characteristics and Traceability Discrimination of Jiangxi Tea based on Rare Earth Element Contents Shipin gongye ke-ji tea rare earth element principal component analysis discriminant analysis origin traceability |
| title | Origin Characteristics and Traceability Discrimination of Jiangxi Tea based on Rare Earth Element Contents |
| title_full | Origin Characteristics and Traceability Discrimination of Jiangxi Tea based on Rare Earth Element Contents |
| title_fullStr | Origin Characteristics and Traceability Discrimination of Jiangxi Tea based on Rare Earth Element Contents |
| title_full_unstemmed | Origin Characteristics and Traceability Discrimination of Jiangxi Tea based on Rare Earth Element Contents |
| title_short | Origin Characteristics and Traceability Discrimination of Jiangxi Tea based on Rare Earth Element Contents |
| title_sort | origin characteristics and traceability discrimination of jiangxi tea based on rare earth element contents |
| topic | tea rare earth element principal component analysis discriminant analysis origin traceability |
| url | http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2023010159 |
| work_keys_str_mv | AT zhiliangxu origincharacteristicsandtraceabilitydiscriminationofjiangxiteabasedonrareearthelementcontents AT xinquanzhang origincharacteristicsandtraceabilitydiscriminationofjiangxiteabasedonrareearthelementcontents |