Question: What Does Iodine Value Indicate?

What is the importance of iodine number in unsaturated lipids?

Iodine numbers are often used to determine the amount of unsaturation in fats and oils (based on its fatty acid components).

This unsaturation is in the form of double bonds, which react with iodine compounds.

The higher the iodine number, the more C=C bonds are present in the fat..

What does iodine in soap mean?

The Iodine Number indicates the amount of of unsaturated fatty acids present. Soap made with mostly unsaturated (liquid) fats will tend to have a high Iodine Number and soap made with mostly saturated (solid) fats will have a low Iodine Number.

What is the importance of iodine value in frying process?

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 is the range of acid value for vegetable oil?

The mean acid value for the locally made and imported oils were 2.43 ± 0.9 and 0.98 ± 0.23, respectively. The acid value between the locally made and imported edible oils significantly differ with p-value < 0.001 of 95% of the CI.

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 value activated carbon?

600 to 1100Basically, iodine number is a measure of the iodine adsorbed in the pores and, as such, is an indication of the pore volume available in the activated carbon of interest. Typically, water-treatment carbons have iodine numbers ranging from 600 to 1100.

What is 12.69 in iodine value formula?

Determination of iodine value Iodine value was calculated as 12.69N (V2 – V1)/W where N=Normality of Na2 S2 O3 used; W=the Volume in millilitres of Na2S2O3 used (Blank); V1=the Volume in millilitres of Na2S2O3 solution used for the determination (test sample).

Is high iodine value good or bad?

Iodine value is used to measure unsaturation or the average number of double bonds in fats and oils. … A high, iodine value indicates high unsaturation.

Does temperature affect iodine number?

Abstract. study of effect of temperature on iodine value of bio-char and total carbon containin bio-char was studied in continuous feed reactor with 1 kg/hr feeding rate. … However, the iodine adsorption capacity of the prepared char decreased 214.67 to 154.158mg/g with a temperature 450 to 600°C.

Why starch is used as indicator in iodine value analysis?

In an iodometric titration, a starch solution is used as an indicator since it can absorb the I2 that is released. This absorption will cause the solution to change its colour from deep blue to light yellow when titrated with standardised thiosulfate solution.

What seafood contains iodine?

Several types of seafood contain high amounts of iodine, including scallops (90 percent of daily value), cod (80 percent), shrimp (31 percent), sardines (24 percent), salmon (21 percent) and tuna (15 percent).

Which lipid would you expect to have the highest iodine number?

fatWhich lipid would you expect to have the highest iodine number? iodine number. a fat or oil.

How do you calculate iodine value?

Iodine value are used to determine the amount of unsaturation in fatty acids. The iodine value of an oil/fat is the number of grams of iodine absorbed by 100g of oil/fat.

How do you determine the iodine value of oil?

The iodine number equals the number of mg of iodine required to saturate the fatty acids present in 100 mg of the oil or fat. Oils rich in saturated fatty acids have low iodine numbers, while oils rich in unsaturated fatty acids have high iodine numbers.

Is there iodine in olive oil?

Nondrying oils, such as olive oil, used for soapmaking and in food products, have relatively low iodine values (about 80).

What is the relation between iodine value and rancidity?

The more iodine is attached, the higher is the iodine value. Meaning the more reactive, less stable and more susceptible it is to oxidation and rancidification.

What does a high iodine value mean?

Iodine numbers are often used to determine the amount of unsaturation in fats, oils and waxes. … Thus, the higher the iodine value, the more unsaturations are present in the fat. It can be seen from the table that coconut oil is very saturated, which means it is good for making soap.

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.

What affects the iodine value?

Iodine Value (IV) Apart from the number of double bonds present in the molecule, the IV is also influenced by the molecular weight, thus, IV oleic acid = (2 × 127/282) × 100 = 90.1.