| Project/Area Number |
24658278
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Boundary agriculture
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| Research Institution | Toyama Prefectural University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2014-03-31
|
| Project Status |
Completed (Fiscal Year 2013)
|
| Budget Amount *help |
¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | フッ素 / イオンクロマトグラフ / 茶 / 茶葉炭 |
|---|
| Research Abstract |
Extremely high concentration of fluoride, which is about 50mg/l, is detected in both black tea and green tgea by an ion chromatograph. While the concentration is only 1 mg/l when it is detected by a spectrophotometry method. In the case that the detection of the ion chromatograph is correct, fluoride would form safe complex to the human body, since there have been no reports that tea causes fluorosis. In this research, identification of the chemical which brings the peak on the chromatograph was intensively done. It was found that the chemical could not be a fluoride but a some kind of inorganic material, however, it was failed to identify it.
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