| 燕麦麸油的萃取及脂肪酸成分分析 |
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| 引用本文： | 屠兰英,黄梓平,赵启文.燕麦麸油的萃取及脂肪酸成分分析[J].湖北农业科学,2012,51(15):3290-3291. |
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| 作者姓名： | 屠兰英 黄梓平 赵启文 |
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| 作者单位： | 青海大学化工学院,西宁,810016 |
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| 基金项目： | 青海省科技厅攻关项目(2008-G-174);农业部引进国际先进农业科学技术项目 |
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| 摘 要： | 采用超临界CO2法从燕麦(Avena sativa)品种青海444中萃取麸油,设计正交试验优化萃取工艺.结果表明,萃取压力对燕麦麸油的萃取率有极显著影响(P＜0.01),萃取时间和萃取温度对萃取率有显著影响(P＜0.05).优化的萃取工艺条件为萃取压力25 MPa、萃取温度40℃、萃取时间2.5 h,此条件下燕麦麸油的萃取率为8.572％.GC-MS分析表明青海444燕麦麸油中主要含有5种脂肪酸,其中总不饱和脂肪酸含量达85.366％,油酸和亚油酸的含量分别为41.175％和40.558％.
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| 关 键 词： | 燕麦(Avena sativa) 麸油 超临界CO2萃取法 脂肪酸成分 |
Extraction and Fatty Acids Analysis of Bran Oil in Oat |
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| TU Lan-ying
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HUANG Zi-ping
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ZHAO Qi-wen.Extraction and Fatty Acids Analysis of Bran Oil in Oat[J].Hubei Agricultural Sciences,2012,51(15):3290-3291. |
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| Authors: | TU Lan-ying HUANG Zi-ping ZHAO Qi-wen |
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| Institution: | (School of Chemical Engineering,Qinghai University,Xining 810016,China) |
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| Abstract: | Supercritical CO2 method was adopted to extract brand oil from oat(Avena sativa) variety Qinghai 444;and orthogonal design was applied to optimize the extraction.The results showed that extraction pressure had very significant effect on the yield of bran oil(P<0.01);while extraction temperature and extraction time had significant effect(P<0.05).The optimum extraction conditions were,extraction pressure,25 MPa;extraction temperature,40 ℃;and extraction time,2.5 hours;the yield of oat bran oil was 8.572% under these conditions.According to GC-MS analysis,there were 5 components in oat bran oil,among which the content of total unsaturated fatty acid was 85.366%;and the content of oleic acid and linoleic acid was 41.175% and 40.558%,respectively. |
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| Keywords: | oat(Avena sativa) bran oil supercritical CO2 extraction method fatty acid components |
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