Science and Technology of Food Industry

ISSN 1002-0306
CN   11-1759/TS
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Preparation of Ethyl Esters from high acid value fish oil by two-step process[J]. Science and Technology of Food Industry, 2013, (05): 275-277. DOI: 10.13386/j.issn1002-0306.2013.05.040
Citation: Preparation of Ethyl Esters from high acid value fish oil by two-step process[J]. Science and Technology of Food Industry, 2013, (05): 275-277. DOI: 10.13386/j.issn1002-0306.2013.05.040
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Preparation of Ethyl Esters from high acid value fish oil by two-step process

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  • Fish oil ethyl esters were prepared by a two-step process using fish oil fatty acid glyceride with high acid value. The first step was sulfuric acid-catalyzed esterification, followed by KOH-catalyzed transesterification. The appropriate process conditions were obtained as follows by the orthogonal test:for esterification, the reaction temperature was 70℃, the concentration of sulfuric was1.5%, the reaction time was 1h. For transesterification, the reaction temperature was 70℃, the concentration of KOH was 0.5%, the reaction time was 0.5h. Under the best conditions, the yield of ethyl ester is 92.5%.
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