Cargando…

Prediction and Health Risk Assessment of Copper, Lead, Cadmium, Chromium, and Nickel in Tieguanyin Tea: A Case Study from Fujian, China

Heavy metal is widespread in food and the environment due to multiple origins, raising concerns over their persistent potential health risks. Contamination of multiple heavy metals in tea leaves is frequently reported. However, the dietary exposure risk that heavy metals in Tieguanyin tea (a famous...

Descripción completa

Detalles Bibliográficos
Autores principales: Yao, Qinghua, Huang, Minmin, Zheng, Yunyun, Chen, Meizhen, Huang, Chongyao, Lin, Qiu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9180062/
https://www.ncbi.nlm.nih.gov/pubmed/35681341
http://dx.doi.org/10.3390/foods11111593
_version_ 1784723424137969664
author Yao, Qinghua
Huang, Minmin
Zheng, Yunyun
Chen, Meizhen
Huang, Chongyao
Lin, Qiu
author_facet Yao, Qinghua
Huang, Minmin
Zheng, Yunyun
Chen, Meizhen
Huang, Chongyao
Lin, Qiu
author_sort Yao, Qinghua
collection PubMed
description Heavy metal is widespread in food and the environment due to multiple origins, raising concerns over their persistent potential health risks. Contamination of multiple heavy metals in tea leaves is frequently reported. However, the dietary exposure risk that heavy metals in Tieguanyin tea (a famous type of oolong tea,) pose to different subpopulations has not been explored. In this study, contaminations of five heavy metals (Cu, Pb, Cr, Cd, and Ni) of concern in Tieguanyin tea were monitored, then the related health risk was assessed for six different subpopulations based on tea brewing experiments and a previous consumption survey. Results show that the mean levels found were as follows: 8.18 mg/kg (Cu), 0.84 mg/kg (Pb), 0.51 mg/kg (Cr), 0.04 mg/kg (Cd), and 1.90 mg/kg (Ni), respectively, and their transfer rates during tea brewing varied within 10.2–70.4%. All estimated daily intakes of individual targeted elements via Tieguanying tea consumption were far below their corresponding tolerable limits. The adjusted hazard index value ranged from 1.1 × 10(−2) to 1.7 × 10(−2), indicating that exposure to these five elements via drinking Tieguanyin tea would not pose significant non-cancer risks for six subpopulations under the current consumption habit. In addition, the carcinogenic risks associated with heavy metals (Pb, Cd, and Cr) were acceptable because no total cancer risk values exceeded the 10(−4) threshold. However, in order to improve consumer protection, we still suggest that considerable attention should be paid to Pb, Ni, and Cd because of their high concentration in infusion, high extraction rate, and major carcinogenic risk contribution, respectively.
format Online
Article
Text
id pubmed-9180062
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-91800622022-06-10 Prediction and Health Risk Assessment of Copper, Lead, Cadmium, Chromium, and Nickel in Tieguanyin Tea: A Case Study from Fujian, China Yao, Qinghua Huang, Minmin Zheng, Yunyun Chen, Meizhen Huang, Chongyao Lin, Qiu Foods Article Heavy metal is widespread in food and the environment due to multiple origins, raising concerns over their persistent potential health risks. Contamination of multiple heavy metals in tea leaves is frequently reported. However, the dietary exposure risk that heavy metals in Tieguanyin tea (a famous type of oolong tea,) pose to different subpopulations has not been explored. In this study, contaminations of five heavy metals (Cu, Pb, Cr, Cd, and Ni) of concern in Tieguanyin tea were monitored, then the related health risk was assessed for six different subpopulations based on tea brewing experiments and a previous consumption survey. Results show that the mean levels found were as follows: 8.18 mg/kg (Cu), 0.84 mg/kg (Pb), 0.51 mg/kg (Cr), 0.04 mg/kg (Cd), and 1.90 mg/kg (Ni), respectively, and their transfer rates during tea brewing varied within 10.2–70.4%. All estimated daily intakes of individual targeted elements via Tieguanying tea consumption were far below their corresponding tolerable limits. The adjusted hazard index value ranged from 1.1 × 10(−2) to 1.7 × 10(−2), indicating that exposure to these five elements via drinking Tieguanyin tea would not pose significant non-cancer risks for six subpopulations under the current consumption habit. In addition, the carcinogenic risks associated with heavy metals (Pb, Cd, and Cr) were acceptable because no total cancer risk values exceeded the 10(−4) threshold. However, in order to improve consumer protection, we still suggest that considerable attention should be paid to Pb, Ni, and Cd because of their high concentration in infusion, high extraction rate, and major carcinogenic risk contribution, respectively. MDPI 2022-05-28 /pmc/articles/PMC9180062/ /pubmed/35681341 http://dx.doi.org/10.3390/foods11111593 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yao, Qinghua
Huang, Minmin
Zheng, Yunyun
Chen, Meizhen
Huang, Chongyao
Lin, Qiu
Prediction and Health Risk Assessment of Copper, Lead, Cadmium, Chromium, and Nickel in Tieguanyin Tea: A Case Study from Fujian, China
title Prediction and Health Risk Assessment of Copper, Lead, Cadmium, Chromium, and Nickel in Tieguanyin Tea: A Case Study from Fujian, China
title_full Prediction and Health Risk Assessment of Copper, Lead, Cadmium, Chromium, and Nickel in Tieguanyin Tea: A Case Study from Fujian, China
title_fullStr Prediction and Health Risk Assessment of Copper, Lead, Cadmium, Chromium, and Nickel in Tieguanyin Tea: A Case Study from Fujian, China
title_full_unstemmed Prediction and Health Risk Assessment of Copper, Lead, Cadmium, Chromium, and Nickel in Tieguanyin Tea: A Case Study from Fujian, China
title_short Prediction and Health Risk Assessment of Copper, Lead, Cadmium, Chromium, and Nickel in Tieguanyin Tea: A Case Study from Fujian, China
title_sort prediction and health risk assessment of copper, lead, cadmium, chromium, and nickel in tieguanyin tea: a case study from fujian, china
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9180062/
https://www.ncbi.nlm.nih.gov/pubmed/35681341
http://dx.doi.org/10.3390/foods11111593
work_keys_str_mv AT yaoqinghua predictionandhealthriskassessmentofcopperleadcadmiumchromiumandnickelintieguanyinteaacasestudyfromfujianchina
AT huangminmin predictionandhealthriskassessmentofcopperleadcadmiumchromiumandnickelintieguanyinteaacasestudyfromfujianchina
AT zhengyunyun predictionandhealthriskassessmentofcopperleadcadmiumchromiumandnickelintieguanyinteaacasestudyfromfujianchina
AT chenmeizhen predictionandhealthriskassessmentofcopperleadcadmiumchromiumandnickelintieguanyinteaacasestudyfromfujianchina
AT huangchongyao predictionandhealthriskassessmentofcopperleadcadmiumchromiumandnickelintieguanyinteaacasestudyfromfujianchina
AT linqiu predictionandhealthriskassessmentofcopperleadcadmiumchromiumandnickelintieguanyinteaacasestudyfromfujianchina