Process for the isolation of polyunsaturated fatty acids and esters
thereof from complex mixtures which contain sterols and phosphorus
compounds
    1.
    发明授权
    Process for the isolation of polyunsaturated fatty acids and esters thereof from complex mixtures which contain sterols and phosphorus compounds 失效
    用于从含有甾醇和磷化合物的复杂混合物中分离多不饱和脂肪酸及其酯的方法

    公开(公告)号:US6063946A

    公开(公告)日:2000-05-16

    申请号:US592797

    申请日:1996-01-26

    摘要: This invention relates to a process for the isolation of fatty acids and fatty acid esters from complex naturally occurring mixtures which contain sterols, triglycerides and phospholipids. A preferred embodiment of the invention comprises extracting lipids from egg yolk solids with methanol; separating lipids including sterols from insoluble egg yolk components; submitting the methanolic solution of lipids to (a) alkaline hydrolysis and subsequent neutralization to convert lipids to free fatty acids together with sterols; (b) separating the said sterols and acids from an aqueous phase formed in the hydrolysis reaction; (c) heating said free fatty acids and sterols to convert the sterols to fatty acid sterol esters; (d) subjecting the mixture to distillation to separate the sterol esters from the free fatty acids; and (e) subjecting the said acids to esterification in the presence of glycerol to produce triglycerides of said fatty acids wherein the resulting triglycerides contain reduced quantities of sterols and phosphorus. An enteral nutritional formula containing the triglycerides produced in the above process is also disclosed.

    摘要翻译: 本发明涉及从含有甾醇,甘油三酯和磷脂的复杂天然存在的混合物中分离脂肪酸和脂肪酸酯的方法。 本发明的优选实施方案包括用甲醇从蛋黄固体中提取脂质; 分离包括固醇的脂质不溶于蛋黄成分; 将脂质的甲醇溶液(a)碱性水解并随后中和,将脂质与甾醇一起转化为游离脂肪酸; (b)将所述甾醇和酸与水解反应中形成的水​​相分离; (c)加热所述游离脂肪酸和甾醇以将甾醇转化为脂肪酸甾醇酯; (d)使混合物进行蒸馏以将固醇酯与游离脂肪酸分离; 和(e)在甘油存在下使所述酸进行酯化以产生所述脂肪酸的甘油三酯,其中所得甘油三酸酯含有降低量的甾醇和磷。 还公开了含有在上述方法中生产的甘油三酯的肠内营养配方。

    Polyunsaturated fatty acid and fatty acid ester mixtures free of sterols
and phosphorus compounds
    2.
    发明授权
    Polyunsaturated fatty acid and fatty acid ester mixtures free of sterols and phosphorus compounds 失效
    多不饱和脂肪酸和不含甾醇和磷化合物的脂肪酸酯混合物

    公开(公告)号:US5917068A

    公开(公告)日:1999-06-29

    申请号:US768828

    申请日:1996-12-18

    摘要: This invention relates to a process for removing sterols and phosphorous compounds from naturally occurring lipid mixtures. The process involves hydrolyzing a naturally occurring lipid mixture containing phospholipids, triglycerides, and sterols to form a two-phase product containing a fatty acid phase comprised of free fatty acids and sterols, and an aqueous phase comprised of water, glycerol, and glycerol phosphoric acid esters. The aqueous phase is separated from the fatty acid phase and the crude fatty acid phase is heated to convert the free sterols to fatty acid sterol esters. The free fatty acids are distilled from the fatty acid sterol esters to yield purified fatty acids which are free of cholesterol and other sterols, and phosphorous compounds.

    摘要翻译: 本发明涉及从天然存在的脂质混合物中除去甾醇和磷化合物的方法。 该方法包括水解含有磷脂,甘油三酯和甾醇的天然存在的脂质混合物以形成含有由游离脂肪酸和固醇组成的脂肪酸相的两相产物,以及由水,甘油和甘油磷酸组成的水相 酯类。 将水相与脂肪酸相分离,并将粗脂肪酸相加热以将游离甾醇转化为脂肪酸甾醇酯。 从脂肪酸甾醇酯中蒸馏游离脂肪酸,得到不含胆固醇和其他固醇的纯化脂肪酸,以及磷化合物。

    Process for the production of tocotrienol/tocopherol blend concentrates
    4.
    发明授权
    Process for the production of tocotrienol/tocopherol blend concentrates 失效
    生育三烯酚/生育酚共混物浓缩物的方法

    公开(公告)号:US5660691A

    公开(公告)日:1997-08-26

    申请号:US558073

    申请日:1995-11-13

    IPC分类号: C07D311/72 C07D311/76

    CPC分类号: C07D311/72

    摘要: Disclosed is an improved process for the preparation of tocotrienol/tocopherol blend concentrates from vegetable oil distillates which are enriched in tocotrienols. Tocotrienol/tocopherol blend concentrates are obtained containing 20-80% tocotrienols/tocopherols by weight, with an overall recovery of tocotrienols/tocopherols of 72% to 97%. The process is comprised first of an esterification reaction where the more volatile alcohols are converted to their less volatile fatty acid esters, followed by a series of distillation steps where components boiling higher and lower than the tocotrienols/tocopherols are separated from tocotrienols/tocopherols and other like boiling substances. Advantages of the process are that tocotrienol/tocopherol blend concentrates are produced efficiently and economically in a minimum number of steps without the use of solvents and with a relatively small capital investment.

    摘要翻译: 公开了一种用于从富含生育三烯酚的植物油馏出物制备生育三烯酚/生育酚共混物浓缩物的改进方法。 获得含有20-80%生育三烯醇/生育酚的生育三烯酚/生育酚共混物浓缩物,其中生育三烯酚/生育酚的总回收率为72%至97%。 该方法首先包括酯化反应,其中挥发性较高的醇转化成其挥发性较小的脂肪酸酯,然后进行一系列蒸馏步骤,其中沸点高于和低于生育三烯酚/生育酚的组分与生育三烯酚/生育酚等分离 像沸腾物质。 该方法的优点是生育三烯酚/生育酚共混物浓缩物在不使用溶剂和相对小的资本投资的情况下以最少数量的步骤有效且经济地生产。

    Process for the purification of a crude carboxylic acid slurry
    9.
    发明授权
    Process for the purification of a crude carboxylic acid slurry 有权
    粗制羧酸浆液的纯化方法

    公开(公告)号:US07132566B2

    公开(公告)日:2006-11-07

    申请号:US10667744

    申请日:2003-09-22

    IPC分类号: C07C51/16 C07C51/42

    摘要: Disclosed is a process to produce a purified carboxylic acid product. The process comprises removing impurities from a crude carboxylic acid slurry in a solid-liquid displacement zone to form a slurry product. The slurry product if further treated in a staged oxidation zone and a crystallization zone to from a crystallized product. The crystallized product is further cooled in a cooling zone and subsequently filtered and dried in a filtration and drying zone. The process produces purified carboxylic acid product having good color and low impurity levels without the use of purification steps like hydrogenation.

    摘要翻译: 公开了一种生产纯化的羧酸产物的方法。 该方法包括从固体 - 液体置换区中的粗制羧酸浆液中除去杂质以形成浆料产物。 如果在分阶段的氧化区和结晶区进一步处理,得到浆状产物至结晶产物。 将结晶产物在冷却区进一步冷却,随后过滤并在过滤和干燥区中干燥。 该方法产生具有良好颜色和低杂质水平的纯化羧酸产物,而不使用纯化步骤如氢化。