Comparative Assessment of Copper, Iron, and Zinc Contents in Selected Indian (Assam) and South African (Thohoyandou) Tea (Camellia sinensis L.) Samples and Their Infusion: A Quest for Health Risks to Consumer

Journal article


Karak, Tanmoy, Paul, Ranjit Kumar, Kutu, Funso Raphael, Mehra, Aradhana, Khare, Puja, Dutta, Amrit Kumar, Bora, Krishnamoni and Boruah, Romesh Kumar 2016. Comparative Assessment of Copper, Iron, and Zinc Contents in Selected Indian (Assam) and South African (Thohoyandou) Tea (Camellia sinensis L.) Samples and Their Infusion: A Quest for Health Risks to Consumer. Biological Trace Element Research. https://doi.org/10.1007/s12011-016-0783-3
AuthorsKarak, Tanmoy, Paul, Ranjit Kumar, Kutu, Funso Raphael, Mehra, Aradhana, Khare, Puja, Dutta, Amrit Kumar, Bora, Krishnamoni and Boruah, Romesh Kumar
Abstract

Abstract: The current study aims to assess the infusion pattern of three important micronutrients namely copper (Cu), iron (Fe) and zinc (Zn) contents from black tea samples produced in Assam (India) and Thohoyandou (South Africa). Average daily intakes and hazardous quotient were reported for these micronutrients. Total content for Cu, Fe and Zn varied from 2.25 to 48.82 mg kg-1, 14.75 to 148.18 mg kg-1 and 28.48 to 106.68 mg kg-1 respectively. The average contents of each of the three micronutrients were higher in tea leaves samples collected from South Africa than those from India while the contents s in tea infusions in Indian samples were higher than in South African tea samples. Results of this study revealed that the consumption of not more than 600 mL tea infusion produced from 24 g of made tea per day may be beneficial to human in terms of these micronutrients content. Application of nonparametric tests revealed that most of the data sets do not satisfy the normality assumptions. Hence, Powered by Editorial Manager® and ProduXion Manager® from Aries Systems Corporation the use of both parametric and nonparametric statistical analysis that subsequently revealed significant differences in elemental contents among Indian and South African tea.

Abstract: The current study aims to assess the infusion pattern of three important micronutrients namely copper (Cu), iron (Fe) and zinc (Zn) contents from black tea samples produced in Assam (India) and Thohoyandou (South Africa). Average daily intakes and hazardous quotient were reported for these micronutrients. Total content for Cu, Fe and Zn varied from 2.25 to 48.82 mg kg-1, 14.75 to 148.18 mg kg-1 and 28.48 to 106.68 mg kg-1 respectively. The average contents of each of the three micronutrients were higher in tea leaves samples collected from South Africa than those from India while the contents s in tea infusions in Indian samples were higher than in South African tea samples. Results of this study revealed that the consumption of not more than 600 mL tea infusion produced from 24 g of made tea per day may be beneficial to human in terms of these micronutrients content. Application of nonparametric tests revealed that most of the data sets do not satisfy the normality assumptions. Hence,

Powered by Editorial Manager® and ProduXion Manager® from Aries Systems Corporation

the use of both parametric and nonparametric statistical analysis that subsequently revealed significant differences in elemental contents among Indian and South African tea.

KeywordsBlack tea; Health risk assessment; Meta-analysis; Micronutrients; Repeated infusions
Year2016
JournalBiological Trace Element Research
PublisherSpringer
ISSN0163-4984
1559-0720
Digital Object Identifier (DOI)https://doi.org/10.1007/s12011-016-0783-3
Web address (URL)http://hdl.handle.net/10545/620657
http://creativecommons.org/licenses/by/4.0/
hdl:10545/620657
Publication dates23 Jun 2016
Publication process dates
Deposited24 Oct 2016, 15:27
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ContributorsUniversity of Derby
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