ArticleBiological trace element research2017
Evaluation of Macro- and Microelement Levels in Black Tea in View of Its Geographical Origin.
Article in Biological trace element research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 30 citations in OpenAlex.
- The Level of Selected Metals in Made Tea and Tea Infusion from the Roadside Tea Plants and Health Risk Assessment.Biological trace element research · 2024Article
- Ameliorative effect of black tea extract on the skin of D-galactose-induced aging mice.Frontiers in nutrition · 2023Article
- Effects of Fermentation Time and Type of Tea on the Content of Micronutrients in Kombucha Fermented Tea.Nutrients · 2022Article
- Dietary Intake of Toxic Heavy Metals with Major Groups of Food Products-Results of Analytical Determinations.Nutrients · 2022Article
- Risk assessment of heavy metals in rooibos (Aspalathus linearis) tea consumed in South Africa.Environmental science and pollution research international · 2021Article
- Analytical Assessment of Bioelements in Various Types of Black Teas from Different Geographical Origins in View of Chemometric Approach.Molecules (Basel, Switzerland) · 2021Article
- Evaluation of Physicochemical Properties of Beetroot-Based Dietary Supplements.Foods (Basel, Switzerland) · 2021Article
- Quality Assessment of Wild and Cultivated Green Tea from Different Regions of China.Molecules (Basel, Switzerland) · 2021Article
- Chemical Composition of Selected Commercial Herbal Remedies in Relation to Geographical Origin and Inter-Species Diversity.Biological trace element research · 2018Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The aim of this study was to evaluate the elemental composition of black tea samples and their infusions in view of their geographical origin. In total, 14 elements were analyzed, 13 (Ca, K, Mg, Na, Mn, Fe, Zn, Cu, Cr, Ni, Co, Cd, and Pb) by flame atomic absorption spectrometry, and P by UV-Vis spectrometry, after mineralization of samples. It was found that K was the most abundant macroelement in the analyzed samples, whereas among microelements, the highest concentration was found for Mn. Based on the obtained data, the percentage of elements leached into the infusions as well as the daily elemental intake from tea were calculated. The daily intake from tea was compared to the recommended daily allowances (RDAs), and the highest percentages of the RDAs were found for Mn (15 %) and Co (10 %). To study the relations between elemental composition and country of origin of samples, factor analysis and cluster analysis were applied. These multivariate techniques proved to be efficient tools able to differentiate samples according to their provenance as well as plantation within the common regions.
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Registered trials
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