Method for isolating high-purified unsaturated fatty acids using crystallization
    5.
    发明公开
    Method for isolating high-purified unsaturated fatty acids using crystallization 有权
    佛得角zur Isolierung von hochgereinigtenungesättigtenFettsäurenmittels Kristallisation

    公开(公告)号:EP1211304A2

    公开(公告)日:2002-06-05

    申请号:EP01310052.4

    申请日:2001-11-30

    发明人: Lee, Seong Kweon

    IPC分类号: C11C1/00 C11C1/08

    CPC分类号: C11C1/007 C11C1/103

    摘要: The present invention relates to a method for isolating and purifying only a certain unsaturated fatty acid in a high purity from fatty acids present in oils including vegetable oils and fish oils by means of crystallization. More particularly, the present invention relates to a method for isolating and purifying only the desired unsaturated fatty acid in a high purity from fatty acids present in oils by selectively using a urea-addition crystallization, and a cooling crystallization or a high liquid chromatography. Specifically, the present invention provides a method for isolating and purifying linoleic acid or oleic acid as unsaturated fatty acids, in a high purity of at least 99% by subjecting fatty acids derived from oils, particularly, a vegetable oil containing linoleic acid or oleic acid at a high concentration, such as safflower oil, corn germ oil or olive oil, as the raw material to two-step urea-addition crystallization using methanol and urea and then crystallizing the concentrated unsaturated fatty acid from an organic solvent under cooling at temperature of -5°C to -10°C without stirring, or a method for isolating eicosapentaenoic acid (EPA) as unsaturated fatty acid, in a high purity of at least 99% by subjecting fatty acids derived from oils, particularly, a fish oil containing EPA at a high concentration, such as sardine oil, as the raw material to two-step urea-addition crystallization using methanol and urea to obtain a concentrated unsaturated fatty acid having a high purity and then further purifying the high-purified, concentrated fatty acid by means of a high liquid chromatography using a column filled with Ag-silica or Ag-alumina.

    摘要翻译: 本发明涉及通过结晶分离纯化含有植物油和鱼油的油中的脂肪酸的高纯度的某些不饱和脂肪酸的方法。 更具体地说,本发明涉及通过选择性地使用脲加成结晶,冷却结晶或高液相色谱分离纯化仅存在于油中的脂肪酸的高纯度所需不饱和脂肪酸的方法。 具体地说,本发明提供了通过使来自油的脂肪酸,特别是含有亚油酸或油酸的植物油,将亚油酸或油酸作为不饱和脂肪酸进行分离纯化的方法,其中高纯度至少为99% 以高浓度如红花油,玉米胚芽油或橄榄油为原料,使用甲醇和尿素进行两步尿素加成结晶,然后在冷却下从有机溶剂中结晶浓缩的不饱和脂肪酸,温度为 -5℃至-10℃,或者通过使来自油的脂肪酸,特别是含有油的脂肪酸,以高纯度至少99%的方式分离作为不饱和脂肪酸的二十碳五烯酸(EPA)的方法 高浓度的EPA,如沙丁鱼油,作为原料,用甲醇和尿素进行两步尿素加成结晶,得到具有高p值的浓缩不饱和脂肪酸 纯度,然后通过使用填充有Ag-二氧化硅或Ag-氧化铝的柱的高液相色谱进一步纯化高纯化的浓缩的脂肪酸。

    Method for isolating high-purified unsaturated fatty acids using crystallization
    8.
    发明公开
    Method for isolating high-purified unsaturated fatty acids using crystallization 有权
    一种用于高度纯化的不饱和脂肪酸通过结晶分离过程

    公开(公告)号:EP1211304A3

    公开(公告)日:2002-07-31

    申请号:EP01310052.4

    申请日:2001-11-30

    发明人: Lee, Seong Kweon

    IPC分类号: C11C1/00 C11C1/08

    CPC分类号: C11C1/007 C11C1/103

    摘要: The present invention relates to a method for isolating and purifying only a certain unsaturated fatty acid in a high purity from fatty acids present in oils including vegetable oils and fish oils by means of crystallization. More particularly, the present invention relates to a method for isolating and purifying only the desired unsaturated fatty acid in a high purity from fatty acids present in oils by selectively using a urea-addition crystallization, and a cooling crystallization or a high liquid chromatography. Specifically, the present invention provides a method for isolating and purifying linoleic acid or oleic acid as unsaturated fatty acids, in a high purity of at least 99% by subjecting fatty acids derived from oils, particularly, a vegetable oil containing linoleic acid or oleic acid at a high concentration, such as safflower oil, corn germ oil or olive oil, as the raw material to two-step urea-addition crystallization using methanol and urea and then crystallizing the concentrated unsaturated fatty acid from an organic solvent under cooling at temperature of -5°C to -10°C without stirring, or a method for isolating eicosapentaenoic acid (EPA) as unsaturated fatty acid, in a high purity of at least 99% by subjecting fatty acids derived from oils, particularly, a fish oil containing EPA at a high concentration, such as sardine oil, as the raw material to two-step urea-addition crystallization using methanol and urea to obtain a concentrated unsaturated fatty acid having a high purity and then further purifying the high-purified, concentrated fatty acid by means of a high liquid chromatography using a column filled with Ag-silica or Ag-alumina.

    Verfahren zur Reinigung von Fettsäure- oder Fettsäureestergemischen
    10.
    发明公开
    Verfahren zur Reinigung von Fettsäure- oder Fettsäureestergemischen 失效
    福斯法赫尔·里维尼翁·冯·费特切尔(Fétsäureestergemischen)。

    公开(公告)号:EP0021433A1

    公开(公告)日:1981-01-07

    申请号:EP80103622.9

    申请日:1980-06-26

    IPC分类号: C07C51/487 C11C1/10

    摘要: 3-Stufiges Verfahren zur Entfernung von Polyensäuren aus einem Fettsäure- oder Fettsäureestergemisch das besteht aus:

    zur Entfernung von Polyensäuren, wie Linolensäure, insbesondere ein verbessertes Verfahren zur Gewinnung von technischer Ölsäure. Das Verfahren ist 3-stufig:

    1. Konjugierung der im Ausgangsprodukt vorkommenden Polyensäuren bis zu 90% oder mehr in alkalischem Milieu;
    2. Selektive Polymerisation der Konjuensäuren bei 100-250° C durch Einleiten von Sauerstoff oder Luft in das Fettsäuregemisch über einen Zeitraum von 0,5-2 h (Luftmenge 30-60 1/1000 g);
    3. Abtrennen der gebildeten Polymersubstanzen durch Destillation, wobei diese im Rückstand verbleiben. Das Monoensäure enthaltende Destillationsprodukt enthält

    摘要翻译: 1.一种通过聚合多不饱和组分并通过蒸馏处理反应产物从含有单烯脂肪酸的脂肪酸和/或脂肪酸酯混合物中分离多烯脂肪酸的方法,其特征在于将多不饱和组分转化为共轭脂肪酸, 和/或在聚合期间,因为通过将氧或含有游离氧的气体引入脂肪酸混合物中进行聚合,并且分离出含有少于5重量%的多不饱和组分的蒸馏产物。