Deresa Ebisa Mirete, Befkadu Daniel Muluneh, Hamda Milkessa Geletu
Department of Chemistry, College of Natural Sciences, Jimma University, Jimma, Ethiopia.
Moonlight Academy, Addis Ababa, Ethiopia.
Heliyon. 2023 Sep 23;9(10):e20412. doi: 10.1016/j.heliyon.2023.e20412. eCollection 2023 Oct.
Iodine deficiency is one of the most common micronutrient deficiencies in developing countries, which leads to iodine deficiency disorders (IDD). To combat iodine deficiency disorders, universal salt iodization is mandatory. However, iodized salt can lose its iodine due to environmental factors such as heat, light, moisture, and so on. Therefore, the aim of this study is to investigate the effects of heat and light on the iodine content of packaged and open salt brands available in Jimma town, Oromia, Ethiopia. An experimental study design was employed to determine the effects of heat and light on the iodine content of salts. A total of six salt samples were collected from retailers selected based on convenience sampling technique. Among six different salt brands, three were packaged salts, and the rest were non-packaged (open) salts. The iodine content of the salt samples was determined by the iodometric titration method, and the effects of heat and light on the concentration of iodine were also investigated. It has been revealed that heat and light decrease the iodine content of salt samples. The findings of this study provide valuable insights into the stability of iodized salt against heat and light. It is also helpful in identifying the right time at which salt should be added while cooking and the appropriate storage conditions for salt in households.
碘缺乏是发展中国家最常见的微量营养素缺乏症之一，会导致碘缺乏病（IDD）。为防治碘缺乏病，强制实行全民食盐加碘。然而，由于热、光、湿度等环境因素，加碘盐会失去碘。因此，本研究的目的是调查热和光对埃塞俄比亚奥罗米亚州吉马镇市售包装盐和散装盐碘含量的影响。采用实验研究设计来确定热和光对盐碘含量的影响。通过方便抽样技术从零售商处总共收集了六个盐样本。在六个不同的盐品牌中，三个是包装盐，其余是散装（未包装）盐。通过碘量滴定法测定盐样本的碘含量，并研究热和光对碘浓度的影响。结果表明，热和光会降低盐样本的碘含量。本研究结果为加碘盐在热和光条件下的稳定性提供了有价值的见解。这也有助于确定烹饪时加盐的合适时间以及家庭中盐的适当储存条件。
