What does iodine value indicate?
What does iodine value indicate?
The iodine value (IV) indicates the degree of unsaturation of a fat or oil. It is defined as the number of grams of iodine absorbed by 100 g of fat. Calculation of IV provides more accurate data, eliminating unsaturation present in unsaponifiable compounds.
What is the normal range of iodine value?
Decrease in iodine value shows decrease in the number of double bonds and it indicates oxidation of the oil. Iodine value recommended standards are as follows (g of iodine/100g of oil): Palm 50-55, corn 103-135, soybean 120-143, sunflower 110-143 and peanut 84-105 [12].
What is iodine value and state its importance?
The iodine value is a measure of the relative degree of unsaturation in oil components, as determined by the uptake of halogen. Because the melting point and oxidative stability are related to the degree of unsaturation, IV provides an estimation of these quality factors.
Why iodine value is important?
Principle of the test The most important application of the iodine value is to determine the amount of unsaturation contained in fatty acids. This unsaturation is in the form of double bonds which react with iodine compounds. The higher the iodine value, the more unsaturated fatty acid bonds are present in a fat.
What does a high iodine value mean?
The more iodine is attached, the higher is the iodine value, and the more reactive, less stable, softer, and more susceptible to oxidation and rancidification is the oil, fat, or wax.
What are the benefits of iodine?
Iodine’s most important role is to ensure proper thyroid function. It helps to regulate the production of the thyroid hormones thyroxine (T4) and triiodothyronine (T3). Getting enough iodine is essential for preventing low thyroid hormone production and hypothyroidism.
What is iodine soap value?
The Iodine Number or Iodine Value is numeric indicator that is determined by a chemical test that measures how many centigrams of iodine can be dissolved per gram of oil. Saturated fats often have low iodine values and will create harder soaps. Unsaturated fats have high iodine values and will create softer soaps.
What is Iodine Number and its significance?
The iodine value (or iodine adsorption value or iodine number or iodine index, commonly abbreviated as IV) in chemistry is the mass of iodine in grams that is consumed by 100 grams of a chemical substance. Iodine numbers are often used to determine the amount of unsaturation in fats, oils and waxes.
What increases with increase in iodine value?
Increased iodine value (increasing unsaturation) of fats increased apparent fatty acid digestibility, especially as iodine value increased from 11 to 27.
Is iodine bad for kidneys?
Serious kidney damage can be caused by the iodine-containing “dyes” that doctors use to enhance the quality of medical scans. These dyes are called contrast agents, and are usually given intravenously before a CT scan, angiogram or other test.
What are uses of iodine value?
Iodine value can be used to measure the degree of unsaturation of oils and fats . The results are normally expressed as the number of grams of iodine absorbed by 100 g of oil or fat, considering the conditions of the test. This parameter is extremely important in the palm oil industry, where it is used to follow the fractionation process.
What is the iodine value of vegetable oil?
A fat or oil that is high in unsaturated triglycerides will have a high iodine value. Many vegetable oils are rich in unsaturated triglycerides. Sunflower oil, for example, has an iodine value of 110-143, compared with 35-48 for a typical animal fat. Coconut oil, in contrast, is highly saturated, with an iodine value of only 6-11.
Does fish oil contain iodine?
Iodine in Fish Oil. As fish and other seafood, such as seaweed, provide dietary iodine, fish oil supplements may contain some iodine. However, the amount of iodine in fish oil depends, in part, on the way that the fish oil is processed, according to a study published by the journal ” Pure and Applied Chemistry ” in 1990.
What is iodine oil?
iodized oil. an iodine addition product of vegetable oil; used as a radiopaque contrast medium in various diagnostic procedures. i·o·dized oil. An iodine addition product of vegetable oils, containing not less than 38% and not more than 42% of organically combined iodine; a radiopaque medium.
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