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PROCESS FOR PREPARING DHA AND EPA FROM LINGULODINIUM POLYEDRUM, MARINE FLAGELLUM ALGA
PROCESS FOR PREPARING DHA AND EPA FROM LINGULODINIUM POLYEDRUM, MARINE FLAGELLUM ALGA
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机译:从灵藻,藻类藻中制备DHA和EPA的方法
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摘要
PURPOSE: Provided is a method for preparing DHA(docosahexaenoic acid) and EPA(eicosapentaenoic acid) useful for food additives, which uses Lingulodinium polyedrum as a starting material to produce DHA and EPA with high purity and high yield. CONSTITUTION: The method for preparing DHA and EPA uses a dry product containing DHA and EPA obtained by freeze drying Lingulodinium polyedrum, which is dinoflagellate. The method comprises the steps of: extracting the dry product with a mixed solvent; evaporating the organic solvent layer under reduced pressure and purifying the resultant product by chromatography, or evaporating the solvent under reduced pressure and extracting the resultant residue with lower alcohol/C6-8 alkane solvent, so that fractions of lower alcohol layer can be obtained; evaporating the fractions to remove the solvent; extracting the resultant residue with ethyl acetate/water to obtain the ethyl acetate layer; mixing the ethyl acetate layer with the C6-8 alkane layer; evaporating the resultant mixture under reduced pressure and purifying the residue by chromatography.
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机译:目的:提供了一种用于食品添加剂的DHA(二十二碳六烯酸)和EPA(二十碳五烯酸)的制备方法,该方法以聚丁香为原料生产高纯度,高产率的DHA和EPA。组成:DHA和EPA的制备方法是使用含有DHA和EPA的干燥产品,该产品是通过冷冻干燥多毛灵芝多皮获得的,即二鞭毛。该方法包括以下步骤:用混合溶剂萃取干燥产物;和在减压下蒸发有机溶剂层并通过色谱法纯化所得产物,或在减压下蒸发溶剂并用低级醇/ C 6-8烷烃溶剂萃取所得残余物,从而获得低级醇层的级分;蒸发馏分以除去溶剂;用乙酸乙酯/水萃取得到的残余物,得到乙酸乙酯层。将乙酸乙酯层与C6-8烷烃层混合;在减压下蒸发所得混合物,并通过色谱法纯化残余物。
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