Marine products are rich in not only micronutrients but also iodine content. However, the applications of iodine in marine products in the food industry have not been studied extensively. Therefore, in this study, a novel iodized salt was prepared through a simple method for iodine extraction from natural iodine-rich sources and spray drying. Laminaria ochroleuca (kombu), Porphyra umbilicalis (nori), Undaria pinnatifida (wakame), and Haliotis discus hannai (abalone) were selected as natural iodine-rich sources. Through hot water extraction, iodine was extracted from the iodine-rich sources and iodized salt was successfully prepared with extracted iodine and sea salt by spray drying; extraction efficiency varied from 64.88% to 129.67%; yield, 38.45% to 57.09%; loading efficiency, 99.34% to 124.08%. Chemical interactions were assessed using Fourier transform infrared spectroscopy (FT-IR) and thermal dynamics was evaluated using differential scanning calorimetry (DSC). Morphology of the salt crystals was studied using scanning electron microscopy (SEM). Furthermore, a storage test was performed to investigate iodine loss due to temperature, relative humidity, and oxidation for 10 weeks in harsh condition. On comparing our salt with commercial products, novel iodized salts displayed similar or superior stability. Therefore, the novel iodized salt prepared in this study can be applied in the food industry. PRACTICAL APPLICATION Iodine is essential trace element and plays a key role in our body. Marine products such as Laminaria ochroleuca (Kombu), Porphyra umbilicalis (nori), Undaria pinnatifida (wakame), and Haliotis discus hannai (abalone) are known as iodine rich-sources. These products have high level of iodine, but iodine in marine products has not been used widely for food industry. Therefore, using iodine in natural sources, novel iodized salt was prepared with simple method (hot water extraction and spray drying). The novel iodized salt prepared in this study can be applied in the food industry.

中文翻译：

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喷雾干燥法制备天然富碘源新型碘盐


海产品不仅富含微量营养素，而且还含有丰富的碘。然而，碘在海产品中在食品工业中的应用尚未得到广泛研究。因此，本研究通过简单的方法从天然富含碘的来源中提取碘并进行喷雾干燥，制备了一种新型的碘盐。海带、紫菜、裙带菜和鲍鱼被选为富含碘的天然来源。通过热水提取，从富含碘的来源中提取出碘，并通过喷雾干燥将提取的碘和海盐成功制备出碘盐；提取效率从64.88%到129.67%不等；收率38.45%~57.09%；装载效率为99.34%~124.08%。使用傅里叶变换红外光谱 (FT-IR) 评估化学相互作用，并使用差示扫描量热法 (DSC) 评估热动力学。使用扫描电子显微镜（SEM）研究盐晶体的形态。此外，还进行了储存测试，以调查恶劣条件下 10 周内由于温度、相对湿度和氧化而导致的碘损失。将我们的盐与商业产品进行比较时，新型碘盐表现出相似或更好的稳定性。因此，本研究制备的新型碘盐可应用于食品工业。实际应用 碘是人体必需的微量元素，在我们的身体中起着关键作用。海带（昆布）、紫菜（紫菜）、裙带菜（裙带菜）和鲍鱼（鲍鱼）等海产品被称为碘丰富来源。 这些产品的碘含量较高，但海产品中的碘尚未广泛用于食品工业。因此，利用天然来源的碘，通过简单的方法（热水提取和喷雾干燥）制备了新型碘盐。本研究制备的新型碘盐可应用于食品工业。