iodine value terms

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A Simple Colorimetric Procedure for the Determination of …

tion, the iodine value was calculated stoichiometrically and reported as the amount of I 2 used to saturate 100 g of vegetable oil. The higher iodine value, the more unsatura-tion is presented. For example, the coconut oil is slightly unsaturated with the iodine value of 6–11. Whereas, the * Nuntaporn Moonrungsee [email protected]

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The relationship of iodine value with pork carcass weight and …

This study examined the relationship of iodine value (IV) with carcass weight, fat depth, muscle depth, and predicted lean yield from 37 488 pork carcasses. Five IV categories were formed, which were defined as low (<64.99), medium-low (65.00–69.99), medium (70.00–74.99), medium-high (75.00–79.99), and high (>80.00). Correlation …

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Iodine Value

Iodine value determination is a specific example of iodine determination. Solutions of iodine I2 are yellow/brown. However, when it is added to the solution to be tested, the chemical groups that react with iodine (usually -C=C- double bonds in this test) effectively reduce the intensity or intensity of the color (remove I2 from solution). by retrieving).

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D5554 Standard Test Method for Determination of the Iodine Value …

Scope. 1.1 This test method covers the determination of the iodine value of fats and oils. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use.

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Iodine value | Definition, Procedure, Units, Values, & Facts

iodine value, also called iodine number, in analytical chemistry, measure of the degree of unsaturation of an oil, fat, or wax; the amount of iodine, in grams, that is taken up by 100 grams of the oil, fat, or wax. Saturated oils, fats, and waxes take up no iodine, and …

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Effect of different storage type and period on the Acid value of the

The quality attributes in term of peroxide value PV, acidity (%FFA), refractive index (RI) and iodine value (IV) were analyzed according to reference methods. CIE C*.H*.

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Western Michigan University ScholarWorks at WMU

The Iodine Values Calculated From IR Technique ..... .33 10. Comparison of Iodine Number Results From Different Methods ..... .35 11parison of Calculated Iodine Numbers IN. ea1e . and IN a1 . Obtained From IR Method Base in Incorporated Value of Both SN!i, and SN. ex p ..... .37 12.Determined Iodine and Saponification Numbers by …

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(PDF) A COMPARISON OF IODINE VALUES OF SOME CO

The vegetable oils were analyzed for their iodine values and the following results were obtained: For groundnut oil, the iodine values were found to be 86.00 g I2/100g, olive oil 81.01 g I2/100g ...

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Iodine Value – Significance, Need, Importance, and FAQs

The iodine value (IV) is a measure of the average number of grams of iodine that a fat or oil molecule can hold per 100 grams of the substance. The iodine value is a measure of the degree of unsaturation of a fat or oil. The iodine value (IV) of a fat or oil is a measure of the amount of iodine that can be absorbed by the fat or oil.

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Iodine value calculation

1 Assuming you are given normality of sodium thiosulphate as 0.1 N (or sometimes called standard), you could use this formula to find the iodine value: iodine …

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How do you calculate iodine value?

What is 12.69 in iodine value formula? Determination of iodine value The iodine value was determined by the PORIM Test Method 8. Iodine value was calculated as 12.69N (V 2 V 1 )/W where N=Normality of Na 2 S 2 O 3 used; W=the Volume in millilitres of Na 2 S 2 O 3 used (Blank); V 1 =the Volume in millilitres of Na 2 S 2 O 3 solution used …

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Iodine Test- Definition, Principle, Procedure, Result, Uses

The blue color reappears on cooling due to the recovery of iodine binding capacity due to regaining of the helical structure. Requirements. 1. Reagent. Lugol's iodine: 5% elemental iodine is mixed with 10% potassium iodide to form the Lugol's iodine. Test sample; 2. Materials Required. Test tubes; Test tube stand; 3. Equipment. Water bath

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Iodine Value

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. The greater the iodine value, the more unsaturation and the higher the ...

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Iodine Value

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 …

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Iodine Value

Iodine Value. This is usually expressed as the iodine value, or number, which reflects the analytical method used to determine the degree of unsaturation of the oil and represents the grams of iodine consumed in a titration with I2Cl3 per 100g of oil. From: Comprehensive Polymer Science and Supplements, 1989. Related terms: Lipid; Oleic Acid ...

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(PDF) Greener Analytical Method for Determination of Iodine …

A spectrophotometric method has been developed for the determination of iodine value of vegetable oils. The method is based on the reaction of Hanus solution with oils and subsequently treated ...

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Iodine Value

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 …

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Iodine Value | PDF | Iodine | Titration

The iodine value is a measure of the unsaturation of industrial oils and derivatives and is expressed in terms. of the number of cg of iodine absorbed per g of test sample (% iodine absorbed). SCOPE. Applicable to normal industrial oils and derivatives, such as natural or synthetic drying oils and their fatty.

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What is an "Iodine 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. It measures the saturation of the oil/fat and depicts the amount of unsaturated fatty acids present. Saturated fats often have low iodine values and will create harder soaps. …

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Arthur von Hübl and the Iodine Value

The iodine value (IV) is still one of the most commonly applied indices in fatty acid chemistry. Its introduction in 1884 was a milestone in analysing fats and oils as well as describing their structure-property relationships, although it can be considered largely outdated because modern analytical methods such as gas chromatography and nuclear …

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Iodine value

In chemistry, the iodine value 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 degree of unsaturation in fats, oils and waxes. In fatty acids, unsaturation occurs mainly as double bonds which are very reactive towards halogens, the iodine in this case. Thus, the …

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A Comparison of Various Methods of Determining Iodine …

iodine value is used as a basis for further calculations, the accuracy of the determination becomes very impor- tant, since a diffcrencc of one per cent. in iodine value may make a difference of several per cent. in the calcu- lated proportion of one …

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Assessment of quality of edible vegetable oils accessed in …

The iodine value was significantly differ between locally made and imported edible oils with p-value < 0.001 of 95% CI. The iodine value for the local products and imported were 115.63 ± 6.77 and 21.8 ± 3.4, respectively. It was observed that the iodine value significantly different among the brands with a p-value < 0.001 of 95% CI.

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Standard Test Method for Determination of Iodine Value of Tall Oil

Scope. 1.1 This test method covers the Wijs procedure for determination of unsaturation (iodine value) of tall oil fatty acids. 1.2 Iodine value is a measure of the unsaturation of oils and fatty acids and is expressed in terms of the number of centigrams of iodine per gram of sample (weight percent of absorbed iodine).

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Assessment of quality of edible vegetable oils accessed in …

The iodine value was significantly differ between locally made and imported edible oils with p-value < 0.001 of 95% CI. The iodine value for the local products and imported were 115.63 ± 6.77 and 21.8 ± 3.4, respectively. It was observed that the iodine value significantly different among the brands with a p-value < 0.001 of 95% CI ...

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Iodine value (1)

Iodine value (1) DETERMINATION OF IODINE VALUE PRESENTED BY HARISH PUDI M PHARM, 2nd SEM DEPT OF PHARMA ANALYSIS, PES COLLEGE OF PHARMACY.; CONTENTS …

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Towards improvement in prediction of iodine value in edible

Iodine value (IV) is a significant parameter to illustrate the quality of edible oil. In this study, three portable spectroscopy devices were employed to determine IV in mixed edible oil system, a ...

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Iodine

For a general overview of Iodine, see our consumer fact sheet on Iodine. Introduction. Iodine is a trace element that is naturally present in some foods, is added to some types of salt, …

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W. I .. 11,,I F, F, is

Oil quality, as expressed in terms of iodine value ... Fig. 1. Iodine values of progeny from two crosses b e tw ee u parents w i th iodin e values of 90 and 141

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Iodine value Definition & Meaning

noun. variants or iodine value. : a measure of the unsaturation of a substance (as an oil or fat) expressed as the number of grams of iodine or equivalent halogen …

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