Affiliation:
1. Zhongkai University of Agriculture and Engineering, College of Chemistry and Chemical Engineering, Guangzhou, China
2. South China University of Technology, School of Physics and Optoelectronics, Guangzhou, China
Abstract
A method for the iodine-catalyzed conjugation of soybean oil was developed,
and the conjugated product was analyzed by UV, IR, and 1H NMR. The results
indicated that the optimal conditions for conjugation included a temperature
of 180?C, a catalyst loading of 0.5 wt.% and a reaction time of 3 h, at which
the concentration of conjugated linoleic acid was 1.51 mol L-1, with 92 %
conversion, the CLNA reached 0.225 mol L-1 when the temperature was 130?C, a
catalyst loading of 0.5 wt.%, and a reaction time of 3 h with a conversion
rate of 99.9 %. The reaction predominantly produced trans-trans, trans-cis
and cis-trans isomers. It was also revealed that the conjugation of linolenic
acid was much faster than that of linoleic acid. The method possessed the
advantages of a short procedure, a high conversion rate, and no methyl
esterification of the raw material, and it was an environmentally friendly
technology that does not use solvents.
Publisher
National Library of Serbia
Cited by
4 articles.
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