A) Free Fatty Acid (FFA): The reaction between an alkali and fat or fatty acids is the basis of two important analytical determinations.Firstly, acid value is defined as the number of milligrams of potassium hydroxide required to neutralise the free fatty acids in one gram of fat.Acid value is a measurement that avoids the use of assumed molecular weights as occurs in the following determination.The acidity of fats is also often expressed directly in terms of percent Free Fatty Acids (FFA).The assumption usually made in the calculation is that the acids have a molecular weight equal to that of an oleic acid. The relation between acid value and pe
rcent free fatty acids calculated as oleic is as follows: 1 unit of acid value = 0.503% free fatty acidsi) Free fatty acids as oleic, % =ml of alkali x N x 282 10 x weight of sample
A) Free Fatty Acid (FFA): The reaction between an alkali and fat or fatty acids is the basis of two important analytical determinations.Firstly, acid value is defined as the number of milligrams of potassium hydroxide required to neutralise the free fatty acids in one gram of fat.Acid value is a measurement that avoids the use of assumed molecular weights as occurs in the following determination.The acidity of fats is also often expressed directly in terms of percent Free Fatty Acids (FFA).The assumption usually made in the calculation is that the acids have a molecular weight equal to that of an oleic acid. The relation between acid value and pe