Fluoride content in green tea infusions (Camellia sinensis)

Química Nova

Almeida, Cristina M. M.¹  Reto, Márcia¹  Figueira, Maria Eduardo¹  Filipe, Helder Mota¹  Universidade de Lisboa, Lisboa, Portugal¹ 

关键词: fluoride;    green tea;    infusion.;   

DOI  :  10.1590/S0100-40422008000200024

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The aim of this work was to study the influence of green tea consumption on fluoride ingestion. The extraction conditions of fluorides from green tea infusions were defined and nine brands of green tea available in Portugal were analyzed. The quantification of fluorides in the green tea was preceded by the implementation and validation of the potentiometric method (commercial fluoride selective electrode). The concentration of fluorides in the samples ranged from 0. 8 to 2. 0 mg L-1.

【 授权许可】

Unknown