Effect of different gelators on the physicochemical properties and microstructure of coconut oleogels
BACKGROUND The inherent properties of coconut oil (CO), including its elevated saturated fatty acid content and low melting point, make it suitable for application in plastic fat processing. The present study explores the physicochemical characteristics, micromorphology and oxidative stability of o...
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John Wiley and Sons
2024
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my.upm.eprints.1062252024-06-16T03:27:14Z http://psasir.upm.edu.my/id/eprint/106225/ Effect of different gelators on the physicochemical properties and microstructure of coconut oleogels Yang, Zihan Cui, Jingtao Yun, Yonghuan Xu, Yongjiang Tan, Chin‐Ping Zhang, Weimin BACKGROUND The inherent properties of coconut oil (CO), including its elevated saturated fatty acid content and low melting point, make it suitable for application in plastic fat processing. The present study explores the physicochemical characteristics, micromorphology and oxidative stability of oleogels produced from CO using various gelators [ethylcellulose (EC), β-sitosterol/γ-oryzanol (PS) and glyceryl monostearate (MG)] to elucidate the formation mechanisms of coconut oleogels (EC-COO, PS-COO and MG-COO). RESULTS Three oleogel systems exhibited a solid-like behavior, with the formation of crystalline forms dominated by β and β′. Among them, PS-COO exhibited enhanced capability with respect to immobilizing liquid oils, resulting in solidification with high oil-binding capacity, moderate hardness and good elasticity. By contrast, MG-COO demonstrated inferior stability compared to PS-COO and EC-COO. Furthermore, MG-COO and PS-COO demonstrated antioxidant properties against CO oxidation, whereas EC-COO exhibited the opposite effect. PS-COO and EC-COO exhibited superior thermodynamic behavior compared to MG-COO. CONCLUSION Three oleogels based on CO were successfully prepared. The mechanical strength, storage modulus and thermodynamic stability of the CO oleogel exhibited concentration dependence with increasing gelling agent addition. PS-COO demonstrated relatively robust oil-binding capacity and oxidative stability, particularly with a 15% PS addition. This information contributes to a deeper understanding of CO-based oleogels and offers theoretical insights for their application in food products. © 2024 Society of Chemical Industry. John Wiley and Sons 2024 Article PeerReviewed Yang, Zihan and Cui, Jingtao and Yun, Yonghuan and Xu, Yongjiang and Tan, Chin‐Ping and Zhang, Weimin (2024) Effect of different gelators on the physicochemical properties and microstructure of coconut oleogels. Journal of the Science of Food and Agriculture. pp. 1-10. ISSN 0022-5142; ESSN: 1097-0010 (In Press) https://onlinelibrary.wiley.com/doi/10.1002/jsfa.13338 10.1002/jsfa.13338 |
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BACKGROUND
The inherent properties of coconut oil (CO), including its elevated saturated fatty acid content and low melting point, make it suitable for application in plastic fat processing. The present study explores the physicochemical characteristics, micromorphology and oxidative stability of oleogels produced from CO using various gelators [ethylcellulose (EC), β-sitosterol/γ-oryzanol (PS) and glyceryl monostearate (MG)] to elucidate the formation mechanisms of coconut oleogels (EC-COO, PS-COO and MG-COO).
RESULTS
Three oleogel systems exhibited a solid-like behavior, with the formation of crystalline forms dominated by β and β′. Among them, PS-COO exhibited enhanced capability with respect to immobilizing liquid oils, resulting in solidification with high oil-binding capacity, moderate hardness and good elasticity. By contrast, MG-COO demonstrated inferior stability compared to PS-COO and EC-COO. Furthermore, MG-COO and PS-COO demonstrated antioxidant properties against CO oxidation, whereas EC-COO exhibited the opposite effect. PS-COO and EC-COO exhibited superior thermodynamic behavior compared to MG-COO.
CONCLUSION
Three oleogels based on CO were successfully prepared. The mechanical strength, storage modulus and thermodynamic stability of the CO oleogel exhibited concentration dependence with increasing gelling agent addition. PS-COO demonstrated relatively robust oil-binding capacity and oxidative stability, particularly with a 15% PS addition. This information contributes to a deeper understanding of CO-based oleogels and offers theoretical insights for their application in food products. © 2024 Society of Chemical Industry. |
format |
Article |
author |
Yang, Zihan Cui, Jingtao Yun, Yonghuan Xu, Yongjiang Tan, Chin‐Ping Zhang, Weimin |
spellingShingle |
Yang, Zihan Cui, Jingtao Yun, Yonghuan Xu, Yongjiang Tan, Chin‐Ping Zhang, Weimin Effect of different gelators on the physicochemical properties and microstructure of coconut oleogels |
author_facet |
Yang, Zihan Cui, Jingtao Yun, Yonghuan Xu, Yongjiang Tan, Chin‐Ping Zhang, Weimin |
author_sort |
Yang, Zihan |
title |
Effect of different gelators on the physicochemical properties and microstructure of coconut oleogels |
title_short |
Effect of different gelators on the physicochemical properties and microstructure of coconut oleogels |
title_full |
Effect of different gelators on the physicochemical properties and microstructure of coconut oleogels |
title_fullStr |
Effect of different gelators on the physicochemical properties and microstructure of coconut oleogels |
title_full_unstemmed |
Effect of different gelators on the physicochemical properties and microstructure of coconut oleogels |
title_sort |
effect of different gelators on the physicochemical properties and microstructure of coconut oleogels |
publisher |
John Wiley and Sons |
publishDate |
2024 |
url |
http://psasir.upm.edu.my/id/eprint/106225/ https://onlinelibrary.wiley.com/doi/10.1002/jsfa.13338 |
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1802978788441587712 |
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13.19449 |