|
| Optimization of extraction process of Pacific krill oil and quality comparison with Antarctic krill oil |
| |
| DOI： |
| KeyWord:Pacific krill Antarctic krill krill oil extraction quality analysis |
| FundProject: |
|
| Hits: 2264 |
| Download times: 511 |
| Abstract: |
| The single factor experiment and orthogonal experiment of the oil extraction from Pacific krill shrimp and shrimp powder were carried out by organic solvent extraction method, adding the ethanol recovery step. With shrimp power as raw material, the Pacific krill oil and Antarctic krill oil were extracted by 95% ethanol and the contents of free fatty acid, astaxanthin, phospholipids and fatty acid composition were analyzed and compared. The results showed that the optimal extraction solvent was 95% ethanol. The optimal extraction conditions of oil from shrimp were obtained as follows: extraction temperature 45?℃, ratio of material to liquid 1∶?12 and extraction time 3 h. Under these conditions, the oil yield was 12.99%. The optimal extraction conditions of oil from shrimp powder were obtained as follows: extraction temperature 55?℃, ratio of material to liquid 1∶?10 and extraction time 3 h. Under these conditions, the oil yield was 20.00%. The content of phospholipids in Pacific krill oil (39.53%) was more than that in Antarctic krill oil, and the astaxanthin content was similar to that in Antaractic krill oil. The content of free fatty acid in Pacific krill oil was slightly higher than that in Antarctic krill oil, accounting for 9.21%. The types of fatty acids in Pacific krill oil were more than that in Antarctic krill oil. The total content of EPA and DHA of the two krill oils was close. In comparison, the EPA content in Antarctic krill oil was higher, and the DHA content in Pacific krill oil was higher. |
| View full text View/Add Comment Download reader |
| Close |
|
|
|
