Cargando…

Catechin Composition, Phenolic Content, and Antioxidant Properties of Commercially-Available Bagged, Gunpowder, and Matcha Green Teas

The leaves of the Camellia sinensis plant are used to produce many different types of teas, and green tea is particularly noted for its health promoting properties which are attributed to high concentrations of phenolic compounds known as catechins. Green tea is available in forms such as bagged, gu...

Descripción completa

Detalles Bibliográficos
Autores principales: Meyer, Bailey R., White, Haley M., McCormack, Jared D., Niemeyer, Emily D.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10665233/
https://www.ncbi.nlm.nih.gov/pubmed/37923855
http://dx.doi.org/10.1007/s11130-023-01121-2
_version_ 1785138784210255872
author Meyer, Bailey R.
White, Haley M.
McCormack, Jared D.
Niemeyer, Emily D.
author_facet Meyer, Bailey R.
White, Haley M.
McCormack, Jared D.
Niemeyer, Emily D.
author_sort Meyer, Bailey R.
collection PubMed
description The leaves of the Camellia sinensis plant are used to produce many different types of teas, and green tea is particularly noted for its health promoting properties which are attributed to high concentrations of phenolic compounds known as catechins. Green tea is available in forms such as bagged, gunpowder (rolled leaf), and matcha, a fine powder. This study evaluated the phenolic content, catechin composition, caffeine concentration, and antioxidant properties of fifteen commercially-available green teas with an emphasis on identifying differences between ceremonial and culinary matcha. Gunpowder and bagged green teas had higher total phenolic contents and greater CUPRAC (cupric ion reducing antioxidant capacity) and ORAC (oxygen radical absorbance capacity) antioxidant capacities than matcha teas. Among matcha samples, less expensive culinary teas had greater total phenolic contents and higher antioxidant capacities than ceremonial products. Hierarchical cluster analysis was used to determine similarities and differences in catechin composition and revealed that bagged and gunpowder green teas had the highest levels of the stereoisomers epi/catechin gallate, which correlated with their strong antioxidant properties. Bagged and gunpowder teas were the lowest cost products in this study, indicating that they are an economical choice for consumers who want a green tea beverage with high catechin content, although they generally had lower caffeine levels than matcha. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s11130-023-01121-2.
format Online
Article
Text
id pubmed-10665233
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher Springer US
record_format MEDLINE/PubMed
spelling pubmed-106652332023-11-03 Catechin Composition, Phenolic Content, and Antioxidant Properties of Commercially-Available Bagged, Gunpowder, and Matcha Green Teas Meyer, Bailey R. White, Haley M. McCormack, Jared D. Niemeyer, Emily D. Plant Foods Hum Nutr Research The leaves of the Camellia sinensis plant are used to produce many different types of teas, and green tea is particularly noted for its health promoting properties which are attributed to high concentrations of phenolic compounds known as catechins. Green tea is available in forms such as bagged, gunpowder (rolled leaf), and matcha, a fine powder. This study evaluated the phenolic content, catechin composition, caffeine concentration, and antioxidant properties of fifteen commercially-available green teas with an emphasis on identifying differences between ceremonial and culinary matcha. Gunpowder and bagged green teas had higher total phenolic contents and greater CUPRAC (cupric ion reducing antioxidant capacity) and ORAC (oxygen radical absorbance capacity) antioxidant capacities than matcha teas. Among matcha samples, less expensive culinary teas had greater total phenolic contents and higher antioxidant capacities than ceremonial products. Hierarchical cluster analysis was used to determine similarities and differences in catechin composition and revealed that bagged and gunpowder green teas had the highest levels of the stereoisomers epi/catechin gallate, which correlated with their strong antioxidant properties. Bagged and gunpowder teas were the lowest cost products in this study, indicating that they are an economical choice for consumers who want a green tea beverage with high catechin content, although they generally had lower caffeine levels than matcha. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s11130-023-01121-2. Springer US 2023-11-03 2023 /pmc/articles/PMC10665233/ /pubmed/37923855 http://dx.doi.org/10.1007/s11130-023-01121-2 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Research
Meyer, Bailey R.
White, Haley M.
McCormack, Jared D.
Niemeyer, Emily D.
Catechin Composition, Phenolic Content, and Antioxidant Properties of Commercially-Available Bagged, Gunpowder, and Matcha Green Teas
title Catechin Composition, Phenolic Content, and Antioxidant Properties of Commercially-Available Bagged, Gunpowder, and Matcha Green Teas
title_full Catechin Composition, Phenolic Content, and Antioxidant Properties of Commercially-Available Bagged, Gunpowder, and Matcha Green Teas
title_fullStr Catechin Composition, Phenolic Content, and Antioxidant Properties of Commercially-Available Bagged, Gunpowder, and Matcha Green Teas
title_full_unstemmed Catechin Composition, Phenolic Content, and Antioxidant Properties of Commercially-Available Bagged, Gunpowder, and Matcha Green Teas
title_short Catechin Composition, Phenolic Content, and Antioxidant Properties of Commercially-Available Bagged, Gunpowder, and Matcha Green Teas
title_sort catechin composition, phenolic content, and antioxidant properties of commercially-available bagged, gunpowder, and matcha green teas
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10665233/
https://www.ncbi.nlm.nih.gov/pubmed/37923855
http://dx.doi.org/10.1007/s11130-023-01121-2
work_keys_str_mv AT meyerbaileyr catechincompositionphenoliccontentandantioxidantpropertiesofcommerciallyavailablebaggedgunpowderandmatchagreenteas
AT whitehaleym catechincompositionphenoliccontentandantioxidantpropertiesofcommerciallyavailablebaggedgunpowderandmatchagreenteas
AT mccormackjaredd catechincompositionphenoliccontentandantioxidantpropertiesofcommerciallyavailablebaggedgunpowderandmatchagreenteas
AT niemeyeremilyd catechincompositionphenoliccontentandantioxidantpropertiesofcommerciallyavailablebaggedgunpowderandmatchagreenteas