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| Fingerprint characteristics and origin traceability of rare earth elements in main root of Panax notoginseng |
| Received:May 09, 2023 |
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| KeyWord:main root of Panax notoginseng;rare earth elements;food safety;origin traceability |
| Author Name | Affiliation | E-mail | | XU Xiangdong | College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China | | | HE Zhongjun | College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China | hezhongjun@hotmail.com | | LIANG Shewang | College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China | | | WENG Jing | College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China | | | RAN Yuyan | College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China | |
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| Abstract: |
| This study aimed to explore the content and distribution of rare earth elements in Panax notoginseng from different producing areas and to distinguish the producing areas of P. notoginseng, using rare earth elements. The ICP-MS method was used to identify 16 rare earth elements in the main root of P. notoginseng collected from 44 producing areas in Guangxi, Yunnan Wenshan, and Yunnan new cultivating regions. A health risk assessment of rare earth elements in the main root of P. notoginseng was carried out using the health risk model of the United States Environmental Protection Agency. The results showed that rare earth elements Tm and Lu were not detected. The total content of the remaining 14 rare earth elements was 0.943-11.911 mg·kg-1. Based on the allowable daily intake（ADI）of 0.07 mg· kg-1·d-1, the total content of rare earth elements in the main root of P. notoginseng was not harmful to human health. The average content of each rare earth element in the main root of P. notoginseng was Ce>La>Nd>Y>Sc>Pr>Sm>Gd>Dy>Er>Yb>Eu>Tb>Ho, which is relatively enriched for light rare earth elements. One-way analysis of variance and Duncan ′ s multiple comparison of the 14 rare earth elements showed that the content of rare earth elements in the main root of P. notoginseng was different in different producing areas, but the abundance changes of the same rare earth elements in different producing areas were similar. The correct discrimination rates of the Fisher discriminant model for three main root producing areas of P. notoginseng were 100%, 80%, and 87.5%, respectively, with an average of 86.4%. The accuracy of the training set was 96.6%, and the accuracy of the test set was 93.3%, calculated using the multi-layer perceptual neural network model. The content of rare earth elements in the main root of P. notoginseng varies in different producing areas, and rare earth elements can be used as an important index to distinguish between the producing areas of P. notoginseng. |
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