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Improved salt iodat...
Improved salt iodation methods for small-scale salt producers in low-resource settings in Tanzania
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- Assey, Vincent D. (författare)
- Uppsala universitet,Institutionen för kvinnors och barns hälsa,Internationell barnhälsa och nutrition/Persson
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- Tylleskär, Thorkild (författare)
- Centre for International Healht, University of Bergen, Norway
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- Momburi, Philip B. (författare)
- Geological Survey of Tanzania, Ministry of Energy and Minerals, Dodoma, Tanzania
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- Maganga, Michael (författare)
- Karolinska Institutet,Food Science and Nutrition Department, Tanzania
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- Mlingi, Nicholaus V. (författare)
- Food Science and Nutrition Department, Tanzania
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- Reilly, Marie (författare)
- Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
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- Greiner, Ted (författare)
- Food and Nutrition Department, Hanyang University, Seoul, South Korea
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- Peterson, Stefan (författare)
- Karolinska Institutet,Uppsala universitet,Institutionen för kvinnors och barns hälsa,Internationell barnhälsa och nutrition/Persson
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(creator_code:org_t)
- 2009-06-17
- 2009
- Engelska.
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Ingår i: BMC Public Health. - : Springer Science and Business Media LLC. - 1471-2458. ; 9, s. 187-
- Relaterad länk:
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https://bmcpublichea...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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http://kipublication...
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Abstract
Ämnesord
Stäng
- BACKGROUND: Universal salt iodation will prevent iodine deficiency disorders (IDD). Globally, salt-iodation technologies mostly target large and medium-scale salt-producers. Since most producers in low-income countries are small-scale, we examined and improved the performance of hand and knapsack-sprayers used locally in Tanzania. METHODS: We studied three salt facilities on the Bagamoyo coast, investigating procedures for preparing potassium-iodate solution, salt spraying and mixing. Different concentrations of solution were prepared and tested using different iodation methods, with the aim of attaining correct and homogeneous iodine levels under real-life conditions. Levels achieved by manual mixing were compared to those achieved by machine mixing. RESULTS: The overall median iodation level in samples of salt iodated using previously existing methods was 10.6 ppm (range 1.1 - 110.0 ppm), with much higher levels in the top than the bottom layers of the salt bags, p < 0.0001. Experimentation using knapsack-sprayers and manual mixing led to the reliable achievement of levels (60.9 ppm +/- 7.4) that fell within the recommended range of 40 - 80 ppm. The improved methods yielded homogenous iodine concentrations in all layers of salt-bags (p = 0.58) with 96% of the samples (n = 45) falling within 40 - 80 ppm compared to only 9% (n = 45) before the experiment and training (p < 0.0001). For knapsack-spraying, a machine mixer improved the iodine levels and homogeneity slightly compared to manual mixing (p = 0.05). CONCLUSION: Supervised, standardized salt iodation procedures adapted to local circumstances can yield homogeneous iodine levels within the required range, overcoming a major obstacle to universal salt iodation.
Nyckelord
- MEDICINE
- MEDICIN
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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