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Table 1 Effects of composition on the lipid melting behavior.

From: Thermotropic phase behavior and headgroup interactions of the nonbilayer lipids phosphatidylethanolamine and monogalactosyldiacylglycerol in the dry state

Sample composition Tm (°C) (FTIR) Tm (°C)
(DSC)
Thex (°C)
(DSC)
ΔH Tm
(kJ/mol)
ΔH Thex
(kJ/mol)
100% EPE -3.4 -14.9 100.4 10.30 3.79
50% EPE/50% EPC 0.0 -14.0   16.67  
50% EPE/50% DMPC 47.5 53.0   32.03  
100% EPC 39.6 22.0   27.20  
100% DMPC 84.3 97.6   23.20  
100% MGDG    84.7   0.96
50% MGDG/50% EPC -9.0     
50% MGDG/50% DMPC 44.5 27.6/43.6   36.70  
  1. Values for phase transition temperatures (Tm) were either determined by FTIR (Fig. 1) or DSC (Fig. 2). Bilayer to hexagonal phase transition temperatures (Thex) and transition enthalpies (ΔH) were determined by DSC.