Impact of processing method on selected trace elements content of green tea: Does CTC green tea infusion possess risk towards human health?
| Autor: | Deka H; Biochemistry Department, Tocklai Tea Research Institute, Jorhat 785008, Assam, India., Barman T; Analytical Services Department, Tocklai Tea Research Institute, Jorhat 785008, Assam, India., Sarmah PP; Biochemistry Department, Tocklai Tea Research Institute, Jorhat 785008, Assam, India., Devi A; Resource Management and Environment Section, Institute of Advanced Study in Science and Technology, Guwahati 781035, Assam, India., Tamuly P; Biochemistry Department, Tocklai Tea Research Institute, Jorhat 785008, Assam, India., Karak T; Upper Assam Advisory Centre, Tea Research Association, Dikom 786101, Assam, India. |
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| Jazyk: | angličtina |
| Zdroj: | Food chemistry: X [Food Chem X] 2021 Nov 29; Vol. 12, pp. 100173. Date of Electronic Publication: 2021 Nov 29 (Print Publication: 2021). |
| DOI: | 10.1016/j.fochx.2021.100173 |
| Abstrakt: | This study reported the content of selected metals, viz. cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), nickel (Ni), lead (Pb) and zinc (Zn) as well as non-carcinogenic risks of orthodox green tea and CTC (crush, tear and curl) green tea ( Camellia sinensis L.) in India. Results revealed that significantly higher amount of Cr (1.26-10.48 mg kg -1 ), Cu (13.40-22.73 mg kg -1 ), Fe (54.14-99.65 mg kg -1 ), Ni (3.43-7.09 mg kg -1 ), and Zn (25.04-38.04 mg kg -1 ) in CTC green tea than orthodox one. However, no definite trend was observed for Cd and Pb, with overall contents ranged from 6.68 to 23.32 µg kg -1 and 0.04 to 0.13 mg kg -1 , respectively. The extraction of the elements in tea infusion was higher for CTC green tea. The hazard quotient and hazard index values of all the studied metals were less than unity, confirming no significant health effect for consumers assuming drinking of 750 mL tea infusion prepared from 10 g green tea per day per person. Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (© 2021 The Author(s).) |
| Databáze: | MEDLINE |
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