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| 尿素包合法富集沙棘果油棕榈油酸的工艺优化 |
| Process optimization of enriching palmitoleic acid in seabuckthorn fruit oil by urea adduction |
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| DOI： |
| 中文关键词: 沙棘果油 棕榈油酸 尿素包合法 |
| 英文关键词:seabuckthorn fruit oil palmitoleic acid urea adduction |
| 基金项目:上海市人才发展资金资助（2018126）；上海市青年科技启明星计划资助（19QB1400200） |
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| 中文摘要: |
| 以沙棘果油为原料，采用尿素包合法富集沙棘果油中的棕榈油酸，以棕榈油酸含量为评价指标，采用单因素试验分别考察包合时间、包合温度、醇脲比及脲脂比对棕榈油酸含量的影响，利用响应面软件优化尿素包合法富集沙棘果油中棕榈油酸的工艺。得到的尿素包合法富集沙棘果油中棕榈油酸最佳工艺参数为：脲脂比2.5∶ 1，包合温度-4 ℃，包合时间12 h，醇脲比5∶ 1。在最佳条件下，可将沙棘果油棕榈油酸含量由30.28%提高到54.80%，棕榈油酸回收率为32.46%。 |
| 英文摘要: |
| Seabuckthorn fruit oil was used as raw material to enrich palmitoleic acid by urea adduction. The effects of adduction time,adduction temperature, ratio of 95% ethanol volume to urea mass and mass ratio of urea to mixed fatty acid on the palmitoleic acid content were investigated by single factor experiment,then the response surface methodology was used to optimize the process of enriching palmitoleic acid in seabuckthorn fruit oil by urea adduction. The optimal enrichment conditions were obtained as follows: mass ratio of urea to mixed fatty acid 2.5∶ 1, adduction temperature-4 ℃, adduction time 12 h, ratio of 95% ethanol volume to urea mass 5∶ 1. Under the optimal conditions, the palmitoleic acid content in seabuckthorn fruit oil increased from 30.28% to 54.80%, and the recovery rate of palmitoleic acid was 32.46%. |
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