Physical properties of oleogels as affected by high intensity ultrasound, cooling rate and storage conditions

ANABELLA GIACOMOZZI; SILVANA MARTINI; MARIA ELENA CARRIN; CAMILA PALLA

Foz do Iguacu

Congreso; AOCS Latin American Congress and Exhibition on Fats, Oils and Lipids 2019; 2019

AOCS

Monoglyceride (MG) oleogels were formulated with the aim to study the effect of MG concentration (3, 4.5, and 6%), HIU application (20kHz, 10s on/5s off), cooling rate (0.1 and 10ºC/min), and storage temperature (5 and 25ºC) on physical properties of the materials. Samples were placed in a crystallization cell set at different crystallization temperatures (Tc = 38, 41, and 45°C for 3, 4.5 and 6% MG samples, respectively). Samples were cooled to Tc at 0.1 and 10ºC/min and then cooled to 5 or 25ºC. Physical properties, such as oil binding capacity (OBC), hardness (HA), elasticity (G´), microstructure, melting profile and solid fat content (SFC), were measured after storage (24h).A significant increment (p