Supercritical Fluid Extraction of Lipids and Enrichment of DHA from Freshwater Fish Processing Wastes in Thailand

Thitiphan Chimsook

doi:10.4028/www.scientific.net/AMR.1044-1045.444

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1044-1045Supercritical Fluid Extraction of Lipids and...

Supercritical Fluid Extraction of Lipids and Enrichment of DHA from Freshwater Fish Processing Wastes in Thailand

Abstract:

Nowadays, an awareness of health benefits of omega-3 has been found. Polyunsaturated fatty acids, especially DHA, are more attention due to their role in human health. Hence, this study investigated the potential of by-products as freshwater fish source of omega-3 polyunsaturated fatty acids (omega-3 PUFAs). The by-products of processing accounted for approximately 55% of the catfish industry. Supercritical fluid extraction (SFE) of the by-products at 35 MPa, 40 ^◦C, ethanol (95%, v/v) as the co-solvent, and the mass ratio of by-products to co-solvent as 1:1 generated a lipid yield at 30.9% and 21.5 % docosahexaenoic acid (DHA). Additionally, urea complexation was an effective tool to enrich and purify DHA from lipids. DHA purity increased from 21.5% to 38.4% under the optimum complexation condition.

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Periodical:

Advanced Materials Research (Volumes 1044-1045)

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444-447

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1044-1045.444

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Online since:

October 2014

Authors:

Thitiphan Chimsook

Keywords:

DHA, Fish Processing Wastes, Supercritical Fluid Extraction

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