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| 可切换亲水溶剂高效提取藻油及岩藻黄素含量分析 |
| Efficient extraction of algae oil by switchable hydrophilic solvent and its fucoxanthin analysis |
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| DOI： |
| 中文关键词: 三角褐指藻 岩藻黄素 藻油 可切换亲水溶剂 |
| 英文关键词:Phaeodactylum tricornutum fucoxanthin algae oil switchable hydrophilic solvent |
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| 中文摘要: |
| 采用可切换亲水溶剂N，N-二甲基环己胺（DMCHA）从湿三角褐指藻藻泥以及干粉中通过非蒸馏的节能方式提取藻油，并比较DMCHA法与氯仿甲醇法及乙醇法提取的藻油岩藻黄素总含量。结果表明：在料液比1∶?25、提取时间24 h条件下，三角褐指藻干粉藻油得率达到21.29%，三角褐指藻藻泥的藻油得率达到13.29%；SEM观察发现提油后三角褐指藻表面结构有明显的破坏；DMCHA法提取的藻油中岩藻黄素总含量为9.17 mg/g，与氯仿甲醇法相差不大，低于乙醇法提取的藻油中岩藻黄素总含量；核磁分析发现，藻油中的溶剂残留仅为提取溶剂添加量的0.231%，测定溶剂回收率为93.2%。 |
| 英文摘要: |
| The switchable hydrophilic solvent DMCHA was used to extract algae oil from both algae mud and dry powder of Phaeodactylum tricornutum without distillation process, and the fucoxanthin contents in algae oils extracted by DMCHA method, Folch method and ethanol method were compared. The results showed that under the conditions of ratio of solid to liquid 1∶?25 and extraction time 24 h, the extraction rates of algae oil from dry powder and algae mud were 21.29% and 13.29% respectively. After the oil extraction, the surface structure of Phaeodactylum tricornutum was obviously damaged. The fucoxanthin content in algae oil extracted by DMCHA method was 9.17 mg/g, which was close to Folch method and lower than ethanol method. It was found by nuclear magnetic analysis that the solvent residue in the algae oil was only 0.231% of the addition amount of the extraction solvent, and the recovery rate of solvent was 93.2%. |
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