Comparative evaluation of the micelle formation process of phospolipids of rapeseed and sunflower lecithines in nonpolar solvents

Abstract

It is known that the ability of phospholipids in plant lecithins to micelle formation in solutions of non-polar solvents depends on their chemical composition. The aim of the study was to conduct a comparative assessment of the process of micelle formation of phospholipids of rapeseed and sunflower lecithins in non-polar solvents to confirm the effectiveness of using carbon tetrachloride as a non-polar solvent, which reduces the micelle formation of phospholipids of rapeseed lecithins and allows us to determine the acidic number of rapeseed lecithins based on the pulsed method of nuclear magnetic resonance. It is shown that phospholipids of rapeseed lecithins in the model oil and carbon tetrachloride form micellar solutions, and micelle formation process of phospholipids is characterized by two values of the critical micelle concentration - CMC1 and CMC2, indicating the formation of rapeseed oil phospholipids in nonpolar solvents of different micellar structures by the molecules. As a result of comparing the values of CMC1 and CMC2 for phospholipids of rapeseed and sunflower lecithins in non-polar solvents in order to compare the ability for micelle formation of phospholipid molecules of these lecithins, it’s been established that the molecules of phospholipids of rapeseed lecithins in both model oil and carbon tetrachloride show the ability to micelle formation in a lesser extent than phospholipid molecules of sunflower lecithins. The effectiveness of the use of carbon tetrachloride as a non-polar solvent, which reduces micellization of phospholipids of rapeseed lecithins and allows determination of the acid number of rapeseed lecithins based on the pulsed nuclear magnetic resonance method has been shown.

Keywords

• phospholipids
• rapeseed lecithins
• sunflower lecithins
• micelle formation process
• non-polar solvents