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| Optimization of supercritical carbondioxide extraction of Decapterus maruadsi fish oil by response surface methodology |
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| KeyWord:Decapterus maruadsi fish oil supercritical response surface methodology process |
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| Abstract: |
| The Decapterus maruadsi fish oil was extracted by supercritical carbon dioxide extraction technology, and the effects of extraction temperature, extraction pressure and extraction time on the yield of Decapterus maruadsi fish oil were investigated by single factor experiment. And the optimization of extraction process was carried out by Box-Behnken design and response surface methodology. The results showed that the optimal extraction conditions were obtained as follows: extraction temperature 49?℃, extraction time 140 min and extraction pressure 20 MPa. Under the optimal conditions, the yield ofDecapterus maruadsi fish oil was 18.45% and the extraction rate was 88.91%. Seventeen kinds of fatty acids were identified from Decapterus maruadsi fish oil by gas chromatography-mass spectrometry (GC-MS), and the content of unsaturated fatty acids was 55.70%, in which the total content of EPA and DHA was 1664%. The application of supercritical carbon dioxide extraction technology in Decapterus maruadsi fish oil extraction had certain theoretical value and economic benefits. |
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