期刊
FOOD CHEMISTRY
卷 197, 期 -, 页码 92-99出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2015.10.103
关键词
Heterogeneous catalyst; Interesterification; Vegetable oil; SBA-15; Biguanide
资金
- National Natural Science Foundation of China [21276066, 21476062]
- Plan for Scientific Innovation Talent of Henan Province [144200510006]
- Fundamental Research Funds for the Henan Provincial Colleges and Universities
The biguanide-functionalized SBA-15 materials were fabricated by grafting of organic biguanide onto the SBA-15 silica through covalent attachments, and then this organic-inorganic hybrid material was employed as solid catalysts for the interesterification of triacylglycerols for the modification of vegetable oils. The prepared catalyst was characterized by FTIR, XRD, SEM, TEM, nitrogen adsorption-desorption and elemental analysis. The biguanide base was successfully tethered onto the SBA-15 silica with no damage to the ordered mesoporous structure of the silica after the organo-functionalization. The solid catalyst had stronger base strength and could catalyze the interesterification of triacylglycerols. The fatty acid compositions and triacylglycerol profiles of the interesterified products were noticeably varied following the interesterification. The reaction parameters, namely substrate ratio, reaction temperature, catalyst loading and reaction time, were investigated for the interesterification of soybean oil with methyl decanoate. The catalyst could be reused for at least four cycles without significant loss of activity. (C) 2015 Elsevier Ltd. All rights reserved.
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