What are two sources of iodine?
What foods provide iodine?
- Fish (such as cod and tuna), seaweed, shrimp, and other seafood, which are generally rich in iodine.
- Dairy products (such as milk, yogurt, and cheese), which are major sources of iodine in American diets.
- Iodized salt, which is readily available in the United States and many other countries*
What foods are sources of iodine?
Iodine is found naturally in a range of foods such as:
- dairy products.
- seafood.
- seaweed (kelp)
- eggs.
- some vegetables.
How do you calculate iodine intake?
Urinary iodine (μg/L) ÷ 0.92 × (0.0009 L/h/kg × 24 h/d) × wt (kg) = daily iodine intake; or simplified, Urinary iodine (μg/L) × 0.0235 × wt (kg) = daily iodine intake. As an example, urinary iodine excretion of 100 μg/L in a 57-kg girl would indicate a daily iodine intake of 134 μg.
Which algae are the source of iodine?
kelps
Brown algae of the Laminariales (kelps) are the strongest accumulators of iodine among living organisms. They represent a major pump in the global biogeochemical cycle of iodine and, in particular, the major source of iodocarbons in the coastal atmosphere.
How is iodine made?
Now the main sources of iodine are iodate minerals, natural brine deposits left by the evaporation of ancient seas and brackish (briny) waters from oil and salt wells. Iodine is obtained commercially by releasing iodine from the iodate obtained from nitrate ores or extracting iodine vapour from the processed brine.
What are the main sources of iodine How is iodine extracted from sea weeds?
Extracting iodine from seaweed. Ribbon seaweeds (sp. laminaria) contain iodine compounds which they obtain by extracting iodide ions from seawater. This iodine can be extracted from the seaweed by heating it in air to an ash, in which the iodine is present as iodide.
What are the main source of iodine how iodine is extracted from seaweed?
Is iodine found in seaweed?
In the marine environment, seaweeds – marine algae, form the major supplier of iodine [9]. The iodine content of seaweed and its chemical form varies with different species but is generally greater in brown seaweeds (kelps) than the green or red varieties [9].
Where was iodine found?
Iodine is naturally present in the ocean and some sea fish and water plants will store it in their tissues. Iodine can be found naturally in air, water and soil. The most important sources of natural iodine are the oceans.
What are the main source of iodine how it is extracted from sea water?
How was iodine found?
Iodine was first discovered by Barnard Courtois, a French chemist in 1811 while extracting potassium and sodium from seaweed ash. When he accidentally added sulfuric acid, a violet colored cloud evolved from the mass. The resulting gas was condensed into dark crystals-the first occurrence of observed solid iodine.