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| 太平洋磷虾油提取工艺优化及与南极磷虾油品质的比较 |
| Optimization of extraction process of Pacific krill oil and quality comparison with Antarctic krill oil |
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| DOI： |
| 中文关键词: 太平洋磷虾 南极磷虾 虾油 提取 品质分析 |
| 英文关键词:Pacific krill Antarctic krill krill oil extraction quality analysis |
| 基金项目: |
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| 中文摘要: |
| 采用有机溶剂浸提法，增加了乙醇复溶步骤，分别对太平洋磷虾粉以及鲜太平洋磷虾进行油脂提取单因素实验和正交实验。以虾粉为原料，用95%乙醇分别提取太平洋磷虾油和南极磷虾油，对虾油中游离脂肪酸、虾青素、磷脂及脂肪酸组成进行分析和比较。结果表明：最佳提取溶剂为95%乙醇；对于鲜虾，提取的最佳工艺条件为提取温度45?℃、料液比1∶?12、提取时间3 h，在此条件下油脂得率为12.99%；对于虾粉，提取的最佳工艺条件为提取温度55?℃、料液比1∶?10、提取时间3 h，在此条件下油脂得率为20.00%；太平洋磷虾油磷脂含量高于南极磷虾油的，为3953%；两种虾油虾青素含量接近；太平洋磷虾油游离脂肪酸含量略高于南极磷虾油的，为921%；太平洋磷虾油脂肪酸种类较多，两者EPA、DHA总含量接近，南极磷虾油EPA含量较高，太平洋磷虾油DHA含量较高。 |
| 英文摘要: |
| 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. |
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