Triacylglyceride melting point determination using coarse-grained molecular dynamics

Research output: Contribution to journalArticlepeer-review

4 Downloads (Pure)


This study is carried out using the COGITO force field to determine whether the thermodynamic melting point of pure triacylglyceride crystals can be predicted using molecular dynamics simulations. The triacylglycerides used in this study are both saturated and unsaturated, as well as symmetrical and asymmetrical, to test the robustness of both the force field and the direct heating methodology described in this paper. Given the nonequilibrium nature of a melting system, a larger number of simulations are required to ensure that the results are sufficiently converged, that is, with little fluctuation and a small confidence interval. The study also highlights the importance of the presence of defects, in this case as voids, to lower the melting nucleation energy barrier of the crystals and avoid superheating of the systems being tested. The size of these defects is much larger than what would be found in a physical crystal, however, the simple and robust procedure that was developed allows the accurate prediction of melting points of the different triacylglycerides.
Original languageEnglish
Pages (from-to)1795-1801
Number of pages7
JournalJournal of Computational Chemistry
Issue number21
Early online date10 May 2023
Publication statusPublished - 5 Aug 2023


  • phase transition
  • melting


Dive into the research topics of 'Triacylglyceride melting point determination using coarse-grained molecular dynamics'. Together they form a unique fingerprint.

Cite this