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Tea pruning litter biochar amendment in soil reduces arsenic, cadmium, and chromium in made tea (Camellia sinensis L.) and tea infusion: A safe drink for tea consumers.


ABSTRACT: Effect of tea pruning litter biochar (TPLBC) on arsenic (As), cadmium (Cd) and chromium (Cr) content in made tea and successive tea infusions were investigated in a greenhouse experiment with two tea cultivars (TV23 and S.3A/3). Made tea prepared from TV23 and S.3A/3 clone, a decrease in the concentration of As, Cd, and Cr by 36.73%, 16.22%, 13.96%, and 36.63%, 27.78%, 10.54%, respectively over control on the application of the highest dose of TPLBC (500 kg TPLBC ha-1). Irrespective of treatments, studied element concentrations were significantly higher (p ≤ 0.05) in the first infusion and lower in the third. Considering Ten g made tea consumption per person per day, the maximum average daily intakes of As, Cd and Cr in a higher dose of TPLBC were far below the tolerable weekly intake prescribed by the World Health Organization. As hazard quotient values of selected elements were ≪ 1, no significant adverse health consequences are expected for tea consumers.

SUBMITTER: Borgohain A 

PROVIDER: S-EPMC9040026 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature

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Tea pruning litter biochar amendment in soil reduces arsenic, cadmium, and chromium in made tea (<i>Camellia sinensis</i> L.) and tea infusion: A safe drink for tea consumers.

Borgohain Arup A   Sarmah Mridusmita M   Konwar Kaberijyoti K   Gogoi Rimjim R   Bikash Gogoi Bidyot B   Khare Puja P   Kumar Paul Ranjit R   Handique Jyotirekha G JG   Malakar Harisadhan H   Deka Diganta D   Saikia Jiban J   Karak Tanmoy T  

Food chemistry: X 20220219


Effect of tea pruning litter biochar (TPLBC) on arsenic (As), cadmium (Cd) and chromium (Cr) content in made tea and successive tea infusions were investigated in a greenhouse experiment with two tea cultivars (TV23 and S.3A/3). Made tea prepared from TV23 and S.3A/3 clone, a decrease in the concentration of As, Cd, and Cr by 36.73%, 16.22%, 13.96%, and 36.63%, 27.78%, 10.54%, respectively over control on the application of the highest dose of TPLBC (500 kg TPLBC ha<sup>-1</sup>). Irrespective o  ...[more]

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