Journal
FOOD CHEMISTRY
Volume 211, Issue -, Pages 74-82Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2016.05.025
Keywords
Acidolysis; Heterogeneous catalyst; Soybean oil; Structured lipid; SBA-15
Funding
- National Natural Science Foundation of China [21276066, 21476062]
- Plan for Scientific Innovation Talent of Henan Province [144200510006]
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The objective of this work was to develop a feasible ecofriendly process to produce medium-chain fatty acid (MCFA)-enriched structured lipids (SLs) in heterogeneous manners. For this purpose, the propyl-SO3H or arene-SO3H-modified SBA-15 materials were prepared through a surface functionalization of SBA-15 silica with propyl-SO3H and arene-SO3H groups. The organosulfonic acid-functionalized SBA-15 materials were characterized by Bronsted acidity determination, elemental analysis, XRD, C-13 MAS NMR, FT-IR, SEM, TG, TEM, and N-2 adsorption-desorption techniques. Results showed that the propyl-SO3H and arene-SO3H groups were successfully tethered on the SBA-15 support, and the ordered mesoporous structure of SBA-15 silica was well retained after the organofunctionalization. This organic-inorganic hybrid material displayed high surface acidities and high activities in the acidolysis of soybean oil with caprylic or capric acid to produce SLs containing MCFAs. The influences of processing parameters on the reaction were investigated. The two studied catalysts showed an excellent recyclability for the reaction. (C) 2016 Elsevier Ltd. All rights reserved.
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