Version 1
: Received: 14 June 2024 / Approved: 16 June 2024 / Online: 18 June 2024 (04:38:14 CEST)
How to cite:
Lama, M.; Montes, L.; Franco, D.; Franco-Uría, A.; Moreira, R. Chitosan-Based Oleogels: Emulsion Drying Kinetics and Physical, Rheological and Textural Characteristics of Olive Oil Oleogels. Preprints2024, 2024061056. https://doi.org/10.20944/preprints202406.1056.v1
Lama, M.; Montes, L.; Franco, D.; Franco-Uría, A.; Moreira, R. Chitosan-Based Oleogels: Emulsion Drying Kinetics and Physical, Rheological and Textural Characteristics of Olive Oil Oleogels. Preprints 2024, 2024061056. https://doi.org/10.20944/preprints202406.1056.v1
Lama, M.; Montes, L.; Franco, D.; Franco-Uría, A.; Moreira, R. Chitosan-Based Oleogels: Emulsion Drying Kinetics and Physical, Rheological and Textural Characteristics of Olive Oil Oleogels. Preprints2024, 2024061056. https://doi.org/10.20944/preprints202406.1056.v1
APA Style
Lama, M., Montes, L., Franco, D., Franco-Uría, A., & Moreira, R. (2024). Chitosan-Based Oleogels: Emulsion Drying Kinetics and Physical, Rheological and Textural Characteristics of Olive Oil Oleogels. Preprints. https://doi.org/10.20944/preprints202406.1056.v1
Chicago/Turabian Style
Lama, M., Amaya Franco-Uría and Ramón Moreira. 2024 "Chitosan-Based Oleogels: Emulsion Drying Kinetics and Physical, Rheological and Textural Characteristics of Olive Oil Oleogels" Preprints. https://doi.org/10.20944/preprints202406.1056.v1
Abstract
Oleogels are of high interest as promising substitutes for trans fats in foods. An emulsion-templated method was used to trap olive oil in the chitosan crosslinked with vanillin matrix. Oil in water emulsions (50:50 w/w) with different chitosan content (0.7 and 0.8% w/w) with constant vanillin/chitosan ratio (1.3) were air-dried at different temperatures (50, 60, 70 and 80ºC) and freeze-dried (-26ºC and 0.1 mbar) to produce oleogels. Only falling-rate periods were determined during air-drying kinetics and were successfully modelled with empirical and diffusional models. At drying temperature of 70ºC the drying kinetics were the fastest. Viscoelasticity of oleogels showed that elastic modulus significantly increased after drying at 60 and 70ºC, and those dried at 50ºC and freeze-dried were weaker. All oleogels showed high oil binding capacity (> 91%), but the highest values (> 97%) were obtained in oleogels with a threshold elastic modulus (50,000 Pa). Oleogels color depended on drying temperature and chitosan content (independent of the drying method). Significant differences were observed between air-dried and freeze-dried oleogels with respect to oxidative stability. Oxidation increased with air drying time regardless of chitosan content. Found results indicated that drying conditions must be carefully selected to produce oleogels with specific features.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
