Stable isotopic and elemental characteristics with chemometrics for the geographical origin authentication of Dendrobium officinale at two spatial scales Article Swipe
Feng Xiong
,
Yuwei Yuan
,
Chunlin Li
,
Chao-Geng Lyu
,
Xiufu Wan
,
Jing Nie
,
Haiyan Li
,
Jian Yang
,
Lanping Guo
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.1016/j.lwt.2022.113871
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.1016/j.lwt.2022.113871
Dendrobium officinale Kimura et Migo (D. officinale) is a healthy tea with protected designation of origin labels, which requires of authenticating its geographical origin. Stable isotope ratios of 87Sr/86Sr, δ13C, δ15N, δ2H, and δ18O and 24 element contents of D. officinale in 379 samples from 11 sites in six provinces were compared at two spatial scales: regional scale among the six provinces, and local scale among six sites within Zhejiang province. 87Sr/86Sr, δ13C, and Ca were significantly different only at regional scale, while Fe was different only at the local scale. Combined with chemometric methods such as Linear Discriminant Analysis and Random Forest high accuracies were obtained for the geographical origin authentication at both regional (100%) and local scale (98.81%). Moreover, ranks of variable importance differed between the regional and local scale discrimination. The top ten important variables at the regional scale were Zn, Sr, δ2H, Ba, Mn, δ15N, Cu, 87Sr/86Sr, Nd, Rb, while those at the local scale were Na, δ15N, Cu, δ2H, Zn, Ni, La, Rb, Nd, and Pb. This study established a stable isotope and element fingerprints dataset of D. officinale, provided potential authenticating methods, and revealed different variable importance ranks for the two scales.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1016/j.lwt.2022.113871
- OA Status
- gold
- Cited By
- 26
- References
- 42
- Related Works
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- OpenAlex ID
- https://openalex.org/W4291295870
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https://openalex.org/W4291295870Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1016/j.lwt.2022.113871Digital Object Identifier
- Title
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Stable isotopic and elemental characteristics with chemometrics for the geographical origin authentication of Dendrobium officinale at two spatial scalesWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2022Year of publication
- Publication date
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2022-08-14Full publication date if available
- Authors
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Feng Xiong, Yuwei Yuan, Chunlin Li, Chao-Geng Lyu, Xiufu Wan, Jing Nie, Haiyan Li, Jian Yang, Lanping GuoList of authors in order
- Landing page
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https://doi.org/10.1016/j.lwt.2022.113871Publisher landing page
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YesWhether a free full text is available
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goldOpen access status per OpenAlex
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https://doi.org/10.1016/j.lwt.2022.113871Direct OA link when available
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Scale (ratio), Geography, Chemometrics, δ15N, δ13C, Chemistry, Stable isotope ratio, Cartography, Physics, Quantum mechanics, ChromatographyTop concepts (fields/topics) attached by OpenAlex
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26Total citation count in OpenAlex
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2025: 6, 2024: 4, 2023: 15, 2022: 1Per-year citation counts (last 5 years)
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10Other works algorithmically related by OpenAlex
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