Determination of the Minimal Gelling Concentration and Obtaining Oleogels
Solutions of MY were prepared in CA and CN at 0.5% w/w intervals up to a concentration of 3% w/w. The solutions were heated separately and homogenized by magnetic stirring (80°C, 100rpm, 10min). The solutions were stored in 20 mL glass vials (28 mm inner diameter, 57 mm height) at 20°C under controlled conditions for 24h. The minimum gelation concentration (MGC) in each oil was determined as the lowest MY concentration at which no flow was observed after inverting the vials for 1h at room temperature (20°C) (Aguilar-Zárate et al., 2019). Oleogels (OGs) were prepared with the MGC and with 4 times the MGC value to obtain saturated systems (SAT). The OGs were obtained by separately heating the different oils with the MGC and SAT concentrations of MY and homogenizing as mentioned above. The OGs were stored for 24h at 20°C under controlled conditions.