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    PROCESS FOR THE PURIFICATION OF ASTAXANTHIN
    2.
    发明申请
    PROCESS FOR THE PURIFICATION OF ASTAXANTHIN 审中-公开
    ASTAXANTHIN的纯化方法

    公开(公告)号：WO2015067706A1

    公开(公告)日：2015-05-14

    申请号：PCT/EP2014/073955

    申请日：2014-11-06

    Applicant: DSM IP ASSETS B.V.

    Inventor： KARRER, Philippe ,  WUESTENBERG, Bettina

    IPC: A23L1/30 ,  A61K9/16 ,  C07C403/24

    CPC classification number: A23L33/10 ,  A23L33/105 ,  A61K9/1652 ,  C07C403/24 ,  C07C2601/16 ,  C09B61/00 ,  C09B67/0096

    Abstract: The present invention is directed to a process for the manufacture of synthetic food-grade astaxanthin with a content of dichloromethane ≤ 250 ppm comprising the following steps: a) Providing synthetic astaxanthin crystals containing dichloromethane in a reactor; and b) Adding methanol to the synthetic astaxanthin crystals in an amount to obtain a suspension of synthetic astaxanthin in methanol, whereby the amount of synthetic astaxanthin in said suspension is in the range of from 5 to 70 weight-%, based on the total weight of the suspension, and closing the reactor; and c) bringing the suspension obtained in step b) to a temperature in the range of from 80 to 140°C; and d) Maintaining the suspension at the temperature as reached in step c); and e) Bringing the methanolic synthetic astaxanthin suspension to atmospheric pressure by releasing overpressure; and f) Cooling the synthetic astaxanthin suspension to a temperature in the range of 10 to 35°C; and g) Filtering off the synthetic astaxanthin crystals and drying them; whereby during the process the total amount of synthetic astaxanthin is not completely solved in the methanol at the same time, and whereby a synthetic food-grade astaxanthin with a content of dichloromethane

    Abstract translation: 本发明涉及制备含二氯甲烷≤250ppm的合成食品级虾青素的方法，包括以下步骤：a）在反应器中提供含有二氯甲烷的合成虾青素晶体; 和b）向合成的虾青素晶体中加入一定量的甲醇以获得合成的虾青素在甲醇中的悬浮液，由此所述悬浮液中合成的虾青素的量在5-70重量％的范围内，基于总重量 的悬浮液，并关闭反应器; 和c）使步骤b）中获得的悬浮液在80-140℃的温度范围内; 和d）将悬浮液维持在步骤c）中达到的温度; 和e）通过释放超压将甲醇合成的虾青素悬浮液引入大气压; 和f）将合成的虾青素悬浮液冷却至10至35℃的温度; 和g）过滤合成的虾青素晶体并干燥; 由此在该过程中，合成的虾青素的总量不能同时在甲醇中完全溶解，由此得到含有二氯甲烷<250ppm的合成食品级虾青素。 代替合成的虾青素晶体，也可以将合成的虾青素在二氯甲烷中的溶液用作原料。

    CATALYTIC SYNTHESIS OF VITAMIN A INTERMEDIATE
    3.
    发明申请
    CATALYTIC SYNTHESIS OF VITAMIN A INTERMEDIATE 审中-公开
    维生素A中间体的催化合成

    公开(公告)号：WO2013098095A1

    公开(公告)日：2013-07-04

    申请号：PCT/EP2012/075534

    申请日：2012-12-14

    Applicant: DSM IP ASSETS B.V.

    Inventor： BONRATH, Werner ,  WUESTENBERG, Bettina ,  NETSCHER, Thomas ,  SCHUETZ, Jan

    IPC: C07C403/12

    CPC classification number: C07C67/29 ,  C07C403/12 ,  C07C2601/16

    Abstract: The present invention relates to a process of production of a compound, which is useful as an intermediate (building block) in organic synthesis, especially in the synthesis of vitamin A or β-carotene and derivatives thereof, e.g. canthaxanthin, astaxanthin or zeaxanthin.

    Abstract translation: 本发明涉及一种化合物的制备方法，其可用作有机合成中的中间体（结构单元），特别是在维生素A或β-胡萝卜素及其衍生物的合成中。 角黄素，虾青素或玉米黄质。

    PROCESS FOR THE PURIFICATION OF ASTAXANTHIN
    7.
    发明申请
    PROCESS FOR THE PURIFICATION OF ASTAXANTHIN 审中-公开
    纯化ASTAXANTHIN的方法

    公开(公告)号：WO2015067711A1

    公开(公告)日：2015-05-14

    申请号：PCT/EP2014/073965

    申请日：2014-11-06

    Applicant: DSM IP ASSETS B.V.

    Inventor： KARRER, Philippe ,  WUESTENBERG, Bettina

    IPC: A23L1/30 ,  A61K9/16 ,  C07C403/24

    CPC classification number: A23L33/10 ,  A61K9/1652 ,  C07C403/24 ,  C07C2601/16

    Abstract: The present invention is directed to synthetic astaxanthin which is suitable for human consumption. The present invention is further directed to processes where methanol is used to drastically reduce the content of dichloromethane in such synthetic astaxanthin. The present invention is further directed to suspensions and beadlets comprising such synthetic food-grade astaxanthin and to human dietary supplements comprising this synthetic food-grade AXN, free from AXN mono- and diesters, comprising ≤ 250 ppm of dichloromethane and preferably comprising ≤ 500 ppm of methanol.

    Abstract translation: 本发明涉及适合人类食用的合成虾青素。 本发明进一步涉及使用甲醇大幅度降低这种合成虾青素中二氯甲烷含量的方法。 本发明进一步涉及包含此类合成食品级虾青素的悬浮液和珠粒，并且涉及包含该合成食品级AXN的不含AXN单酯和二酯的人膳食补充剂，其包含≤250ppm的二氯甲烷且优选包含≤500ppm 的甲醇。

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