Contents of Chromium and Arsenic in Tea (Camellia sinensis L.): Extent of Transfer into Tea Infusion and Health Consequence.

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ID: 45272
2019
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Abstract
Tea (Camellia sinensis L.) is the most popular beverage in the world after water. Due to acidophilic nature of tea plant, it has inherent tendency to uptake metals/metalloids including the toxic ones from the soil which is of great concern worldwide. In this study, level of chromium (Cr) and arsenic (As) were assessed in four hundred ninety-seven (497) black tea samples collected from six tea growing regions of Assam and North Bengal, India. The average concentration of Cr and As in the tested black tea samples was 10.33 and 0.11 μg g, respectively. Since tea is consumed as a beverage, transfer of Cr and As from black tea to its hot water extract (also known as tea infusion) was also accessed. The amount of Cr and As determined in the tea infusion was much less (< 0.20 to 1.38 μg g for Cr and < 3.60 to 34.79 μg kg for As) than those in the black teas with the transfer rate up to 5.96% and 8.53%, respectively. The present study showed that values of hazard quotient were well below one suggesting that intake of Cr and As from consumption of five cups of tea equivalent to 10 g black tea would not impose any health hazard.
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barman2019contentsbiological Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Barman, Tupu;Barooah, A K;Goswami, B C;Sharma, Nipom;Panja, Saumik;Khare, Puja;Karak, Tanmoy;
Journal Biological trace element research
Year 2019
DOI
10.1007/s12011-019-01889-y
URL
Keywords
arsenic chromium hazard quotient assam and north bengal, india black tea infusion

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