| 尿素包合法分离月见草油中γ-亚麻酸——包合工艺参数对结晶物的影响 |
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| 引用本文： | 王华,杨琦,薛刚. 尿素包合法分离月见草油中γ-亚麻酸——包合工艺参数对结晶物的影响[J]. 食品科学, 2010, 31(8): 125. DOI: 10.7506/spkx1002-6300-201008027 |
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| 作者姓名： | 王华 杨琦 薛刚 |
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| 作者单位： | 西北农林科技大学葡萄酒学院;陕西省葡萄与葡萄酒工程技术研究中心;西北农林科技大学食品科学与工程学院;西安市产品质量监督检验所;南阳理工学院生物与化学工程系; |
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| 基金项目： | 南阳市科技局计划资助项目(2006S1006) |
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| 摘 要： | 目的:研究不同因素(包合时间、包合温度、包合次数)对尿素包合结晶物的影响,为进一步优化包合工艺提供参考。方法:设计单因素试验和正交试验,采用显微镜观察不同工艺参数条件下尿素包合结晶物的形态、直径大小,利用气相色谱法检测其γ-亚麻酸(GLA)的纯度。结果:单因素试验表明:随包合时间延长,包合温度降低,尿素包合结晶物越多且越长越粗;而二次、三次、四次包合物均比一次包合物长且粗;最佳包合时间36h、包合温度-15℃、包合次数4次。正交试验表明:60h、-15℃、包合3次为最佳工艺,该条件下GLA的纯度达78.996%。结论:包合时间、包合温度、包合次数对尿素包合结晶物的影响均为显著,通过观察其形态及量变趋势来反映并优化指导包合工艺是可行的。
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| 关 键 词： | 月见草油 γ-亚麻酸(GLA) 尿素包合 包合结晶物 |
Urea Inclusion for Separation of Gamma Linolenic Acid from Evening Primrose Oil:Optimization of Inclusion Parameters |
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| WANG Hua,,YANG Qi,,XUE Gang. Urea Inclusion for Separation of Gamma Linolenic Acid from Evening Primrose Oil:Optimization of Inclusion Parameters[J]. Food Science, 2010, 31(8): 125. DOI: 10.7506/spkx1002-6300-201008027 |
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| Authors: | WANG Hua YANG Qi XUE Gang |
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| Affiliation: | WANG Hua1,2,YANG Qi3,4,XUE Gang5,(1.College of Enology,Northwest A&F University,Yangling 712100,China,2.Grape , Enology Engineering , Technology Research Center of Shaanxi Province,3.College of Food Science , Engineering,4.Xi'an Product Quality Inspection Supervision Institute,Xi'an 710065,5.Department of Biochemical Engineering,Nanyang Institute of Technology,Nanyang 473000,China) |
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| Abstract: | The aim of this study was to investigate three main parameters(inclusion time,temperature and number) affecting ulrea inclusion of gamma linolenic acid(GLA) from evening primrose oil by single factor and orthogonal array design methods.Single factor experiments were carried out to examine the effects of the parameters on the crystal morphology of urea inclusion compounds observed using naked eyes and microscopy and GLA purity.Gas chromatography was used to determine GLA purity.A 4-factor,3-level orthogonal ... |
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| Keywords: | evening primrose oil gamma linolenic acid(GLA) urea inclusion urea inclusion compound |
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