Application of trace element and stable isotope signatures to determine the provenance of tea (Camellia Sinensis) samples
The reputation of particular countries, and plantations within those countries, for the production of high quality tea means that these producers can ask a significantly higher price for their specific product than average. This leads to a temptation for unscrupulous producers to fraudulently label...
| Main Authors: | , , |
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| Format: | Journal Article |
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Elsevier
2010
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| Online Access: | http://hdl.handle.net/20.500.11937/26881 |
| _version_ | 1848752111189229568 |
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| author | Pilgrim, T. Watling, J. Grice, Kliti |
| author_facet | Pilgrim, T. Watling, J. Grice, Kliti |
| author_sort | Pilgrim, T. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The reputation of particular countries, and plantations within those countries, for the production of high quality tea means that these producers can ask a significantly higher price for their specific product than average. This leads to a temptation for unscrupulous producers to fraudulently label their product as coming from one of these areas to take advantage of this higher price. A simple method for the analysis and verification of the country and plantation of origin of tea would provide security to both tea growers and consumers and would largely stamp out this illegal activity. This paper details the use of complimentary organic and inorganic isotope techniques for the analysis of tea samples from Asia. The application of linear discriminant analysis of the isotope ratios and mineral concentrations permitted 97.6% correct classification of the tea samples using the following variables delta D, delta C-13, Ti-49, Cr-53, Co-59, Ni-60, Cu-65, Ga-71, Rb-85, Sr-88, Y-89, Nb-93, Cd-111, Cs-133, Ba-138, La-139, Ce-140, Pr-141, Eu-153, Tl-203, Pb-208 and Bi-209. |
| first_indexed | 2025-11-14T08:03:25Z |
| format | Journal Article |
| id | curtin-20.500.11937-26881 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:03:25Z |
| publishDate | 2010 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-268812017-09-13T16:07:59Z Application of trace element and stable isotope signatures to determine the provenance of tea (Camellia Sinensis) samples Pilgrim, T. Watling, J. Grice, Kliti Provenance onions Isotope ratio mass spectrometry Discriminant analysis geographical origin Origin pattern-recognition Trace elements wines olive oil Isotope adulteration Tea classification mass-spectrometry Camellia sinensis Forensic science Inductively coupled plasma mass spectrometry The reputation of particular countries, and plantations within those countries, for the production of high quality tea means that these producers can ask a significantly higher price for their specific product than average. This leads to a temptation for unscrupulous producers to fraudulently label their product as coming from one of these areas to take advantage of this higher price. A simple method for the analysis and verification of the country and plantation of origin of tea would provide security to both tea growers and consumers and would largely stamp out this illegal activity. This paper details the use of complimentary organic and inorganic isotope techniques for the analysis of tea samples from Asia. The application of linear discriminant analysis of the isotope ratios and mineral concentrations permitted 97.6% correct classification of the tea samples using the following variables delta D, delta C-13, Ti-49, Cr-53, Co-59, Ni-60, Cu-65, Ga-71, Rb-85, Sr-88, Y-89, Nb-93, Cd-111, Cs-133, Ba-138, La-139, Ce-140, Pr-141, Eu-153, Tl-203, Pb-208 and Bi-209. 2010 Journal Article http://hdl.handle.net/20.500.11937/26881 10.1016/j.foodchem.2008.08.077 Elsevier restricted |
| spellingShingle | Provenance onions Isotope ratio mass spectrometry Discriminant analysis geographical origin Origin pattern-recognition Trace elements wines olive oil Isotope adulteration Tea classification mass-spectrometry Camellia sinensis Forensic science Inductively coupled plasma mass spectrometry Pilgrim, T. Watling, J. Grice, Kliti Application of trace element and stable isotope signatures to determine the provenance of tea (Camellia Sinensis) samples |
| title | Application of trace element and stable isotope signatures to determine the provenance of tea (Camellia Sinensis) samples |
| title_full | Application of trace element and stable isotope signatures to determine the provenance of tea (Camellia Sinensis) samples |
| title_fullStr | Application of trace element and stable isotope signatures to determine the provenance of tea (Camellia Sinensis) samples |
| title_full_unstemmed | Application of trace element and stable isotope signatures to determine the provenance of tea (Camellia Sinensis) samples |
| title_short | Application of trace element and stable isotope signatures to determine the provenance of tea (Camellia Sinensis) samples |
| title_sort | application of trace element and stable isotope signatures to determine the provenance of tea (camellia sinensis) samples |
| topic | Provenance onions Isotope ratio mass spectrometry Discriminant analysis geographical origin Origin pattern-recognition Trace elements wines olive oil Isotope adulteration Tea classification mass-spectrometry Camellia sinensis Forensic science Inductively coupled plasma mass spectrometry |
| url | http://hdl.handle.net/20.500.11937/26881 |