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| 油莎豆油亚临界丁烷萃取条件优化及产品质量研究 |
| Optimization of subcritical butane extraction of Cyperus esculentus oil and product quality |
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| DOI： |
| 中文关键词: 油莎豆油 亚临界丁烷萃取 工艺优化 产品质量 |
| 英文关键词:Cyperus esculentus oil subcritical butane extraction process optimization product quality |
| 基金项目:国家重点研发计划项目“大豆及其替代作物产业链科技创新”（SQ2019YFD100114）；河南省重大科技专项“高产优质油莎豆新品种选育及产业化示范”（211100110100） |
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| 中文摘要: |
| 以油莎豆为原料，采用亚临界丁烷萃取法提取油莎豆油。以油莎豆粕残油率为考察指标，在亚临界萃取压力0.5 MPa的条件下，通过单因素试验和响应面试验优化亚临界丁烷萃取油莎豆油的工艺条件，并对亚临界丁烷萃取的油莎豆油品质进行了分析。结果表明：油莎豆油的最佳萃取工艺条件为物料粒度0.425 mm（40目）、萃取温度45 ℃、萃取时间50 min、液固比8∶ 1，在此条件下萃取1次，油莎豆粕残油率为2.91%。所得油莎豆油酸值（KOH）和过氧化值分别为1.33 mg/g、0074 g/100 g，不饱和脂肪酸含量高达84.26%，甾醇和VE总量分别为171.43 mg/100 g、201.81 mg/kg。亚临界丁烷萃取法提取油莎豆油粕残油率低，产品质量达到LS/T 3259—2018《油莎豆油》质量指标，是一种值得推广应用的油莎豆油生产工艺技术。 |
| 英文摘要: |
| Cyperus esculentus oil was extracted by subcritical butane extraction method，and the subcritical extraction conditions were optimized by single factor experiment and response surface methodology under the condition of subcritical extraction pressure of 0.5 MPa with residual oil rate of Cyperus esculentus meal as an index. In addition, the quality of the oil extracted with subcritical butane was analyzed. The results indicated that the optimal extraction conditions were obtained as follows: Cyperus esculentus particles 0425 mm (40 meshes),extraction temperature 45 ℃, extraction time 50 min, and liquid-solid ratio 8∶ 1. Under the optimal conditions, the residual oil rate of Cyperus esculentus meal was 2.91% when extracted for once. The acid value and peroxide value of subcritical butane extracted Cyperus esculentus oil were 1.33 mgKOH/g and 0.074 g/100 g, respectively; the content of unsaturated fatty acids reached 84.26%; the sterol and vitamin E contents were 171.43 mg/100 g and 201.81 mg/kg, respectively. By using subcritical butane extraction method, the residual oil rate of meal was low, and the quality of the oil reached the quality index of LS/T 3259-2018 Cyperus esculentus oil. Overall, the subcritical butane extraction was a method worthy of application in the production of Cyperus esculentus oil. |
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