THE EFFECT OF PARTIAL GLYCERIDES ON TRILAURIN CRYSTALLIZATION

The effects of partial glycerides of fatty acid chainlength from C-10 to C-18 on trilaurin crystal growth rate were investigated. Glycerides of particular form were found to have similar effects. Free fatty aci ds or monoglycerides either had little effect or slightly increased gr owth rates, whereas diglycerides, especially 1,3-diglycerides reduced them. If a particular glyceride has shorter chainlengths than trilauri n, the inhibition of crystallization is extremely small. For slightly longer chainlengths, a significant reduction of crystallization rate i s seen, although smaller than with the addition of partial laurates. M aximum inhibition occurs with chainlength matching, and the magnitude decreases with increasing difference between host and guest chainlengt h.