NEW GENERATION OF PRODUCTS BY CHEMICAL AND BIOTECHNOLOGICAL APPROACHES Effect of structure of defined triglycerides on the physical properties of fatty bases

Abstract

With respect to the fact that during transesterification of oils and fats the mixture of substances are produced, following defined chemical structures of trisaturated triglycerides were synthesised: 1,2-dicaprinoyl-3-stearoylglycerol, 1,3-dicaprinoyl-2-stearoylglycerol, 1,2-dilauroyl-3-stearoylglycerol, 1,3-dilauroyl-2-stearoylglycerol, 1,2-dimyristoyl-3-stearoylglycerol, 1,3-dimyristoyl-2-stearoylglycerol. The model fatty bases were prepared by blending of these triglycerides with low erucic rapeseed oil in the ratio 15-35: 85-65% w/w and were characterised by use of the melting point, solidification point, SFC profile (p-NMR) and yield value. The molecule symmetry effect of the structured triglycerides influences the physical properties of the model fatty bases to the greatest measure. The influence of the growing molecular weight of structured triglycerides has secondary influence.

Keywords

• dicaprinoylstéaroylglycérol
• dilauroylstéaroylglycérol
• dimyristoylstéaroylglycérol
• base grasse
• propriétés physiques
• triglycéride structuré