Fluoride and aluminum in teas and tea-based beverages

被引：38

作者：

Hayacibara, MF ^{[1
]}

Queiroz, CS ^{[1
]}

Tabchoury, UPM ^{[1
]}

Cury, JA ^{[1
]}

机构：

[1] Univ Estadual Campinas, Fac Odontol Piracicaba, Dept Ciencias Fisiol, Piracicaba, SP, Brazil

来源：

REVISTA DE SAUDE PUBLICA | 2004年 / 38卷 / 01期

关键词：

fluorine; analysis; aluminum; beverages; fluorosis; dental; tea-based beverages;

D O I：

10.1590/S0034-89102004000100014

中图分类号：

R1 [预防医学、卫生学];

学科分类号：

1004 ; 120402 ;

摘要：

Objective To evaluate fluoride and aluminum concentration in herbal, black, ready-to-drink, and imported teas available in Brazil considering the risks fluoride and aluminum pose to oral and general health, respectively. Methods One-hundred and seventy-seven samples of herbal and black tea, 11 types of imported tea and 21 samples of ready-to-drink tea were divided into four groups: I-herbal tea; II-Brazilian black tea (Camellia sinensis); III-imported tea (Camellia sinensis); IV-ready-to-drink tea-based beverages. Fluoride and aluminum were analyzed using ion selective electrode and atomic absorption, respectively. Results Fluoride and aluminum levels in herbal teas were very low, but high amounts were found in black and ready-to-drink teas. Aluminum found in all samples analyzed can be considered safe to general health. However, considering 0.07 mg F/kg/day as the upper limit of fluoride intake with regard to undesirable dental fluorosis, some teas exceed the daily intake limit for children. Conclusions Brazilian and imported teas made from Camellia sinensis as well as some tea-based beverages are sources of significant amounts of fluoride, and their intake may increase the risk of developing dental fluorosis.

引用

页码：100 / 105

页数：6

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