Influence of Soya Lecithin, Sorbitan and Glyceryl Monostearate on Physicochemical Properties of Organogels

摘要: The objective of this study is to investigate the effects three different organogelators, sorbitan monostearate (SMS), soya lecithin (SL) and glyceryl (GMS) prepared at concentrations (12%, 15% 18%, w/w) on structural, thermal mechanical properties palm olein (PO)-based organogels. Polarized light microscopy analysis revealed needle-like crystals in SMS-PO, rod-shaped tubules SL-PO rosette-like aggregates GMS-PO Intermolecular hydrogen bonding van der Waals forces were main drivers for self-aggregation these organogelators PO, as observed Fourier transform infrared (FTIR) spectroscopy. X-ray diffraction (XRD) results indicated β’-type polymorphic structure GMS-PO. As concentration increased, there was a corresponding increase firmness, gel-sol transition (Tgs) melting temperatures SMS-PO with amorphous had lowest thus produced weaker gel lower stability. oil binding capacity (OBC) both over 90%, significantly higher than that These findings indicate crystallization key determinant factor final organogel networks. This influenced by molecular used.