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Quantification of Polyphenols and Metals in Chinese Tea Infusions by Mass Spectrometry
Chemical compounds within tea (Camellia sinensis) are characterized by an extensive heterogeneity; some of them are crucial for their protective and defensive role in plants, and are closely connected to the benefits that the consumption of tea can provide. This paper is mainly focused on the charac...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7353651/ https://www.ncbi.nlm.nih.gov/pubmed/32630507 http://dx.doi.org/10.3390/foods9060835 |
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author | Pinto, Gabriella Illiano, Anna Carpentieri, Andrea Spinelli, Michele Melchiorre, Chiara Fontanarosa, Carolina di Serio, Martino Amoresano, Angela |
author_facet | Pinto, Gabriella Illiano, Anna Carpentieri, Andrea Spinelli, Michele Melchiorre, Chiara Fontanarosa, Carolina di Serio, Martino Amoresano, Angela |
author_sort | Pinto, Gabriella |
collection | PubMed |
description | Chemical compounds within tea (Camellia sinensis) are characterized by an extensive heterogeneity; some of them are crucial for their protective and defensive role in plants, and are closely connected to the benefits that the consumption of tea can provide. This paper is mainly focused on the characterization of polyphenols (secondary metabolites generally involved in defense against ultraviolet radiation and aggression by pathogens) and metals, extracted from nine Chinese tea samples, by integrating different mass spectrometry methodologies, LC-MS/MS in multiple reaction monitoring (MRM) and inductively coupled plasma mass spectrometry (ICP-MS). Our approach allowed to identify and compare forty polyphenols differently distributed in tea infusions at various fermentation levels. The exploration of polyphenols with nutraceutical potential in tea infusions can widely benefit especially tea-oriented populations. The worldwide consumption of tea requires at the same time a careful monitoring of metals released during the infusion of tea leaves. Metal analysis can provide the identification of many healthy minerals such as potassium, sodium, calcium, magnesium, differently affected by the fermentation of leaves. Our results allowed us: (i) to draw up a polyphenols profile of tea leaves subjected to different fermentation processes; (ii) to identify and quantify metals released from tea leaves during infusion. In this way, we obtained a molecular fingerprint useful for both nutraceutical applications and food control/typization, as well as for frauds detection and counterfeiting. |
format | Online Article Text |
id | pubmed-7353651 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-73536512020-07-21 Quantification of Polyphenols and Metals in Chinese Tea Infusions by Mass Spectrometry Pinto, Gabriella Illiano, Anna Carpentieri, Andrea Spinelli, Michele Melchiorre, Chiara Fontanarosa, Carolina di Serio, Martino Amoresano, Angela Foods Article Chemical compounds within tea (Camellia sinensis) are characterized by an extensive heterogeneity; some of them are crucial for their protective and defensive role in plants, and are closely connected to the benefits that the consumption of tea can provide. This paper is mainly focused on the characterization of polyphenols (secondary metabolites generally involved in defense against ultraviolet radiation and aggression by pathogens) and metals, extracted from nine Chinese tea samples, by integrating different mass spectrometry methodologies, LC-MS/MS in multiple reaction monitoring (MRM) and inductively coupled plasma mass spectrometry (ICP-MS). Our approach allowed to identify and compare forty polyphenols differently distributed in tea infusions at various fermentation levels. The exploration of polyphenols with nutraceutical potential in tea infusions can widely benefit especially tea-oriented populations. The worldwide consumption of tea requires at the same time a careful monitoring of metals released during the infusion of tea leaves. Metal analysis can provide the identification of many healthy minerals such as potassium, sodium, calcium, magnesium, differently affected by the fermentation of leaves. Our results allowed us: (i) to draw up a polyphenols profile of tea leaves subjected to different fermentation processes; (ii) to identify and quantify metals released from tea leaves during infusion. In this way, we obtained a molecular fingerprint useful for both nutraceutical applications and food control/typization, as well as for frauds detection and counterfeiting. MDPI 2020-06-25 /pmc/articles/PMC7353651/ /pubmed/32630507 http://dx.doi.org/10.3390/foods9060835 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Pinto, Gabriella Illiano, Anna Carpentieri, Andrea Spinelli, Michele Melchiorre, Chiara Fontanarosa, Carolina di Serio, Martino Amoresano, Angela Quantification of Polyphenols and Metals in Chinese Tea Infusions by Mass Spectrometry |
title | Quantification of Polyphenols and Metals in Chinese Tea Infusions by Mass Spectrometry |
title_full | Quantification of Polyphenols and Metals in Chinese Tea Infusions by Mass Spectrometry |
title_fullStr | Quantification of Polyphenols and Metals in Chinese Tea Infusions by Mass Spectrometry |
title_full_unstemmed | Quantification of Polyphenols and Metals in Chinese Tea Infusions by Mass Spectrometry |
title_short | Quantification of Polyphenols and Metals in Chinese Tea Infusions by Mass Spectrometry |
title_sort | quantification of polyphenols and metals in chinese tea infusions by mass spectrometry |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7353651/ https://www.ncbi.nlm.nih.gov/pubmed/32630507 http://dx.doi.org/10.3390/foods9060835 |
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