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Determination of Ffa and Iodine Value

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Determination of Ffa and Iodine Value
UNIVERSITI MALAYSIA SABAH

SCHOOL OF FOOD SCIENCE & NUTRITION
LABORATORY REPORT
NT20903 FOOD CHEMISTRY AND BIOCHEMISTRY

Determination of free fatty acid(FFA) and iodine value (IV)in oil

LECTURER NAME : MOHD NAZRI BIN ABDUL RAHMAN
LAB SESSION : 3 OCTOBER 2011 (GROUP 4, MONDAY)

Group Member

Title: Determination of free fatty acid (FFA) in oil and determination of iodine value (IV) in oil
Introduction
Acid value or free fatty acid content is an important characteristic commonly used in quality control of fat and oil. Fats and oils are one of the large variety and important sources in the world. It contains acidity which is the result of the degree of breakdown of the triacylglycerols by a chemical reaction known as hydrolysis or lipolysis generally. Fresh and healthy oils or fats may also have significant amounts of acidity. This fact is usually due to the errors during the biosynthesis or extraction of oils from fruits. Oils and fats that produced from low quality fruit or through a careless process will consequences in breakdown of the triacylglycerides into fatty acid. These fatty acids are called free fatty acids (FFA).
Free fatty acids can used as an immediate source of energy by many organs and can be converted by the liver into ketone bodies. Free fatty acid form during the breakdown of lipid by hydrolysis and oxidation. Thus, free fatty acid is hydrolyses from dietary lipid for absorption or utilize for lipid synthesize. Free fatty acid play important role in food system and our body system also too .Free fatty acid is same with unsaturated fatty acid, which is giving help to our body .

To verify the quality of fats and oils, acid value or free fatty acid can be used. Acid value is the mass of potassium hydroxide (KOH) in milligrams that is required to neutralize one gram of chemical substance. Acid value is normally calculated in order to determine the amount of free fatty acids. This method is applicable to all normal fat and oil.
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