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

Arup Borgohain; Mridusmita Sarmah; Kaberijyoti Konwar; Rimjim Gogoi; Bidyot Bikash Gogoi; Puja Khare; Ranjit Kumar Paul; Jyotirekha G. Handique; Harisadhan Malakar; Diganta Deka; Jiban Saikia; Tanmoy Karak

Food Chemistry: X (Mar 2022)

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

Arup Borgohain,
Mridusmita Sarmah,
Kaberijyoti Konwar,
Rimjim Gogoi,
Bidyot Bikash Gogoi,
Puja Khare,
Ranjit Kumar Paul,
Jyotirekha G. Handique,
Harisadhan Malakar,
Diganta Deka,
Jiban Saikia,
Tanmoy Karak

Affiliations

Arup Borgohain: Upper Assam Advisory Centre, Tea Research Association, Dikom, Dibrugarh, Assam 786101, India; Department of Chemistry, Dibrugarh University, Dibrugarh 786004, India
Mridusmita Sarmah: Upper Assam Advisory Centre, Tea Research Association, Dikom, Dibrugarh, Assam 786101, India; Department of Chemistry, Dibrugarh University, Dibrugarh 786004, India
Kaberijyoti Konwar: Upper Assam Advisory Centre, Tea Research Association, Dikom, Dibrugarh, Assam 786101, India; Department of Chemistry, Dibrugarh University, Dibrugarh 786004, India; Dibrugarh Polytechnic, Lahowal, Dibrugarh, Assam 786010, India
Rimjim Gogoi: Department of Chemistry, Dibrugarh University, Dibrugarh 786004, India
Bidyot Bikash Gogoi: Upper Assam Advisory Centre, Tea Research Association, Dikom, Dibrugarh, Assam 786101, India; Department of Chemistry, Dibrugarh University, Dibrugarh 786004, India; Department of Chemistry, D.H.S.K. College, Dibrugarh, Assam 786001, India
Puja Khare: Plant Production and Protection Division, CSIR-Central Institute of Medicinal and Aromatic Plants, P.O. -CIMAP, Near Kukrail Picnic Spot, Lucknow 226 015, India
Ranjit Kumar Paul: ICAR-Indian Agricultural Statistics Research Institute, New Delhi 110012, India
Jyotirekha G. Handique: Hiranya Chandra Bhuyan School of Science and Technology, K K Handiqui State Open University, NH 37, Khanapara, Guwahati 781022, India
Harisadhan Malakar: Tocklai Tea Research Institute, Tea Research Association, Cinnamara, Jorhat, Assam 785008, India
Diganta Deka: Upper Assam Advisory Centre, Tea Research Association, Dikom, Dibrugarh, Assam 786101, India
Jiban Saikia: Department of Chemistry, Dibrugarh University, Dibrugarh 786004, India
Tanmoy Karak: Upper Assam Advisory Centre, Tea Research Association, Dikom, Dibrugarh, Assam 786101, India; Corresponding author.

Journal volume & issue: Vol. 13
p. 100255

Abstract

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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.

Published in Food Chemistry: X

ISSN: 2590-1575 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Home economics: Nutrition. Foods and food supply; Technology: Chemical technology: Food processing and manufacture
Website: https://www.journals.elsevier.com/food-chemistry-x

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