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| Optimization of enrichment process of phospholipids in Antarctic krill oil |
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| DOI： |
| KeyWord:Antarctic krill oil phospholipids enrichment triglyceride |
| FundProject:国家重点研发计划（2018YFC1406806） |
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| Abstract: |
| Based on the principle of hydration degumming, the enrichment process of phospholipids in Antarctic krill oil was optimized. The effects of types, mass fraction and amount of reaction solution, reaction temperature, reaction time and stirring speed on the enrichment effect of phospholipid in krill oil and the functional components after enrichment were investigated by single factor experiment. The optimal process conditions for the enrichment of phospholipids in krill oil were obtained as follows: adding 2% citric acid solution with four times amount of phospholipids in the krill oil, reaction temperature 60 ℃, stirring speed 60 r/min, and reaction time 30 min. Under these conditions, the enrichment effect of phospholipids was obvious, and the lyophilized phospholipid solution contained 70.78% phospholipids, 151.93 mg/g EPA and 113.70 mg/g DHA respectively, and the highest content of astaxanthin in the triglyceride was 780.49 mg/kg. |
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