Cooling method impact on wax oleogel properties and oxidative stability: A comparative study between controlled conduction and convection cooling mechanism

Werner-Carcamo, Erwin R.; Millao, Sonia; Jara, Alejandra; Zuniga, Rommy N.; Rubilar, Monica

Abstract

This study evaluates the impact of cooling methods on the physicochemical, rheological, and oxidative properties of beeswax oleogels structured in cold-pressed canola oil. Oleogels were produced using three cooling approaches: room temperature (20-26 degrees C; convection), cold storage (-16 degrees C; conduction/convection), and a novel experimental cooling system (ECS) operating at a controlled rate of 2 degrees C/min. The ECS generated a crystal network with more crystals and a higher average size than the C and RT methods, respectively-exhibiting a considerably higher projected mass fraction-developing a stronger crystal network structure. Compared to the other methods, ECS-cooled oleogels exhibited viscoelastic profiles resembling commercial fats and significantly lower peroxide and p-anisidine values during accelerated oxidation at 50 degrees C over 35 days, particularly up to day 21. These findings demonstrate that precise cooling control via the ECS improves oleogel structure and oxidative stability, offering a promising strategy for healthier fat alternatives.

Más información

Título según WOS: ID WOS:001467380300001 Not found in local WOS DB
Título de la Revista: JOURNAL OF FOOD ENGINEERING
Volumen: 396
Editorial: ELSEVIER SCI LTD
Fecha de publicación: 2025
DOI:

10.1016/j.jfoodeng.2025.112570

Notas: ISI