Article (Scientific journals)
Mixed surfactant systems of sucrose esters and lecithin as a synergistic approach for oil structuring
Bin Sintang, M Dona; Danthine, Sabine; Patel, Ashok R et al.
2017In Journal of Colloid and Interface Science, 504, p. 387-396
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Keywords :
Self-assembly; Sucrose-esters; Lecithin; Oleogel, Rheology; Microstructure, Surfactants; Synergistic
Abstract :
[en] In order to modify the self-assembly of sucrose esters (SEs) in sunflower oil, we added sunflower lecithin (SFL) as co-surfactant. It is hypothesized that SFL modifies the selfassembly of SEs by interrupting the extensive hydrogen bonding between SEs monomers. The addition of SFL into SEs induced gelation of the mixed surfactant system oleogels at all studied ratios. The 7:3 SEs:SFL combination showed enhanced rheological properties compared to the other studied ratios, which suggests better molecular ordering induced by SFL. The modifications might have been caused by interference in the hydrogen bonding, connecting the polar heads of SEs molecules in the presence of SFL. This effect was confirmed by thermal behavior and small angle x-ray diffraction (SAXD) analysis. From the crystallization and melting analyses, it was shown that the peak temperature, shape and enthalpy decreased as the SFL ratio increases. Meanwhile, the bi-component oleogels exhibited new peaks in the SAXD profile, which imply a self-assembly modification. The microscopic study through polarized and electrons revealed a change in the structure. Therefore, it can be concluded that a synergistic effect between SEs and SFL, more particularly at 7:3 ratio, towards sunflower oil structuring could be obtained. These findings shed light for greater applications of SEs as structuring and carrier agent in foods and pharmaceutical.
Disciplines :
Food science
Author, co-author :
Bin Sintang, M Dona
Danthine, Sabine  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Microbial, food and biobased technologies
Patel, Ashok R
Rimaux, Tom
Van De Walle, Davy
Dewettinck, Koen
Language :
English
Title :
Mixed surfactant systems of sucrose esters and lecithin as a synergistic approach for oil structuring
Publication date :
2017
Journal title :
Journal of Colloid and Interface Science
ISSN :
0021-9797
eISSN :
1095-7103
Publisher :
Elsevier, Atlanta, United States - Florida
Volume :
504
Pages :
387-396
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 30 August 2017

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