Abstract
The quantitative estimation of isomeric monoacylglycerol (MG) content in edible fatty oils was carried out by boric acid-impregnated rod TLC-FID using MG concentrates as samples. The MG concentrates were prepared by extraction with CH3CN from an edible oil-hexane solution. The procedure for CH3CN evaporation to recover the MG concentrates below 30°C hardly brought about any change in the content of 2-MG in the total 1-MG. Five species of refined vegetable oils showed 0.0050.01% for MG content, 9097% for 1-MG/total MG. GC analyses of methyl esters obtained from 1- and 2-MG fractions gave the acyl group composition in each fraction.
