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Solubilization of selected free fatty acids in palm oil by biodegradable ethoxylated surfactants

Lim, Tau-Yee, Li, Jing-Liang and Chen, Bing-Hung 2005, Solubilization of selected free fatty acids in palm oil by biodegradable ethoxylated surfactants, Journal of agricultural and food chemistry, vol. 53, no. 11, pp. 4476-4483., doi: 10.1021/jf047888l.

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Title Solubilization of selected free fatty acids in palm oil by biodegradable ethoxylated surfactants
Author(s) Lim, Tau-Yee
Li, Jing-LiangORCID iD for Li, Jing-Liang orcid.org/0000-0003-0709-2246
Chen, Bing-Hung
Journal name Journal of agricultural and food chemistry
Volume number 53
Issue number 11
Start page 4476
End page 4483.
Publisher American Chemical Society
Place of publication Columbus, Oh.
Publication date 2005
ISSN 0021-8561
1520-5118
Keyword(s) solubilization
palm oil
free fatty acid
surfactant
dissolution
Summary The solubilization of three major components, viz., palmitic, oleic, and linoleic acids, in palm oil by ethoxylated surfactants was investigated. The results were analyzed in terms of the molecular properties of surfactants and free fatty acids (FFAs). It was found that the solubilities of these FFAs in various micellar solutions depend not only on their octanol−water partition coefficients (Kow), but also on their physicochemical properties. The study on the solubilization kinetics was conducted by choosing palmitic acid as a model solubilizate and Tergitol 15-S-7 as the model surfactant. A first-order film diffusion model, which accounts for the direct uptake of organic molecules at a solid surface into surfactant micelles, was adopted to analyze the effect of surfactant on dissolution of palmitic acid. It was observed that the presence of surfactant reduced the mass-transfer coefficient. Instead, the overall mass-transfer rate was enhanced because of the much higher driving force from the increased solubilization capacity.
Language eng
DOI 10.1021/jf047888l
Field of Research 090703 Environmental Technologies
090409 Wastewater Treatment Processes
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2005, American Chemical Society
Persistent URL http://hdl.handle.net/10536/DRO/DU:30039288

Document type: Journal Article
Collection: School of Life and Environmental Sciences
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