June 17, 2014 Journal article Open Access

Asamene Embiale, Bhagwan Singh Chandravanshi and Feleke Zewge

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{
  "description": "<p>In this study, the possible effect of original&nbsp;fluoride (F) concentration in six natural waters on the&nbsp;fluoride release from nine brands of tea leaves (whose&nbsp;origin was from Ethiopia, Sri Lanka, and China) during&nbsp;the infusion has been investigated. The capacity of&nbsp;tea&nbsp;leaves (commercially available tea) to absorb F from&nbsp;high-fluoride ground waters which were collected from&nbsp;the Ethiopia Rift Valley has also been investigated in this&nbsp;study. Infused F content of black (either powder or bag&nbsp;form) and green (bag form) teas and water from different&nbsp;sources were assayed. The fluoride content of waters used in this study ranged from 0.254 to 30.2 mg/L, while the fluoride in tea infusion of nine brands of tea&nbsp;ranged from 0.51 to 20.57 mg/L. The F content in moderately F-rich water&nbsp;was&nbsp;reduced from 12.5 to &lt; 5 mg/L in&nbsp;tea infusion while F content in highly F-rich water was&nbsp;reduced from 30.2 to &lt; 10 mg/L in tea infusion of most of&nbsp;the tea brands even with 3 min infusion time. Thus one&nbsp;can reduce the daily intake of F level by drinking tea<br>\nrather than F-rich water itself.</p>", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "creator": [
    {
      "affiliation": "Woldia University, Ethiopia", 
      "@type": "Person", 
      "name": "Asamene Embiale, Bhagwan Singh Chandravanshi and Feleke Zewge"
    }
  ], 
  "headline": "Levels of Fluoride in the Ethiopian and Imported Black Tea (Camellia sinensis) Infusions Prepared in Tap and Fluoride-Rich Natural Waters", 
  "image": "https://zenodo.org/static/img/logos/zenodo-gradient-round.svg", 
  "datePublished": "2014-06-17", 
  "url": "https://nadre.ethernet.edu.et/record/9311", 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.20372/nadre:9311", 
  "@id": "https://doi.org/10.20372/nadre:9311", 
  "@type": "ScholarlyArticle", 
  "name": "Levels of Fluoride in the Ethiopian and Imported Black Tea (Camellia sinensis) Infusions Prepared in Tap and Fluoride-Rich Natural Waters"
}