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    21.
    发明专利
    未知

    公开(公告)号：DE59707985D1

    公开(公告)日：2002-09-19

    申请号：DE59707985

    申请日：1997-12-01

    Applicant: BASF AG

    Inventor： AUWETER HELMUT ,  BOHN HERIBERT ,  LUEDDECKE ERIK

    IPC: A23K20/179 ,  A23L1/275 ,  A23L5/44 ,  A61K9/14 ,  A61K9/16 ,  A61K31/047 ,  A61K31/122 ,  A61K47/08 ,  C09B61/00 ,  C09B67/42 ,  C09B67/46

    Abstract: Preparation of a stable aqueous dispersion, or a stable water-dispersible dry powder, of xanthophylls, which comprisesa) preparing a molecularly dispersed solution of at least one xanthophyll, with or without an emulsifier and/or an edible oil, in a water-miscible organic solvent, or a mixture of water and a water-miscible organic solvent, at above 30° C.,b) mixing this solution with an aqueous solution of a mixture of protective colloids,b1) in which the mixture comprises at least one low-molecular-weight protective colloid component and at least one high-molecular-weight protective colloid component, whose mean molecular weights differ by at least 10,000,b2) the solvent component being transferred to the aqueous phase and the hydrophobic phase of the xanthophyll being formed as a nanodispersed phasec) and if appropriate, to prepare a water-dispersible dry powder, freeing the resulting dispersion from the solvent and the water and drying it in the presence or absence of a coating material.

    22.
    发明专利
    未知

    公开(公告)号：ES2166926T3

    公开(公告)日：2002-05-01

    申请号：ES97103860

    申请日：1997-03-07

    Applicant: BASF AG

    Inventor： LUEDDECKE ERIK ,  SCHWEIKERT LONI

    IPC: A23K1/00 ,  A23K1/16 ,  A23L1/275 ,  A23L2/58 ,  A23L5/44 ,  A61K9/10 ,  A61K47/24 ,  C09B61/00 ,  C09B67/46 ,  C09K23/00

    Abstract: The preparation of a finely-divided carotinoid or retinoid suspension comprises dissolving the material in a volatile water-miscible organic solvent at 50-250 degrees C (optionally under increased pressure) within 10 seconds and then immediately mixing the solution with an aqueous medium at 0-90 degrees C in the absence of protective colloid and in the presence of a physiologically acceptable emulsifier. Also claimed is a finely-divided carotinoid or retinoid suspension free from protective colloid contains an emulsifier chosen from lecithin, mono-, di- or tri-glycerides of aliphatic (optionally acetylated) polycarboxylic acids (eg citric or tartaric acid) or ascorbyl palmitate.

    23.
    发明专利
    未知

    公开(公告)号：DE59705020D1

    公开(公告)日：2001-11-29

    申请号：DE59705020

    申请日：1997-03-07

    Applicant: BASF AG

    Inventor： LUEDDECKE ERIK ,  SCHWEIKERT LONI

    IPC: A23K1/00 ,  A23K1/16 ,  A23L1/275 ,  A23L2/58 ,  A23L5/44 ,  A61K9/10 ,  A61K47/24 ,  C09B61/00 ,  C09B67/46 ,  C09K23/00

    Abstract: The preparation of a finely-divided carotinoid or retinoid suspension comprises dissolving the material in a volatile water-miscible organic solvent at 50-250 degrees C (optionally under increased pressure) within 10 seconds and then immediately mixing the solution with an aqueous medium at 0-90 degrees C in the absence of protective colloid and in the presence of a physiologically acceptable emulsifier. Also claimed is a finely-divided carotinoid or retinoid suspension free from protective colloid contains an emulsifier chosen from lecithin, mono-, di- or tri-glycerides of aliphatic (optionally acetylated) polycarboxylic acids (eg citric or tartaric acid) or ascorbyl palmitate.

    24.
    发明专利
    未知

    公开(公告)号：AT207515T

    公开(公告)日：2001-11-15

    申请号：AT97103860

    申请日：1997-03-07

    Applicant: BASF AG

    Inventor： LUEDDECKE ERIK ,  SCHWEIKERT LONI

    IPC: A23K1/00 ,  A23K1/16 ,  A23L1/275 ,  A23L2/58 ,  A23L5/44 ,  A61K9/10 ,  A61K47/24 ,  C09B61/00 ,  C09B67/46 ,  C09K23/00

    Abstract: The preparation of a finely-divided carotinoid or retinoid suspension comprises dissolving the material in a volatile water-miscible organic solvent at 50-250 degrees C (optionally under increased pressure) within 10 seconds and then immediately mixing the solution with an aqueous medium at 0-90 degrees C in the absence of protective colloid and in the presence of a physiologically acceptable emulsifier. Also claimed is a finely-divided carotinoid or retinoid suspension free from protective colloid contains an emulsifier chosen from lecithin, mono-, di- or tri-glycerides of aliphatic (optionally acetylated) polycarboxylic acids (eg citric or tartaric acid) or ascorbyl palmitate.

    26.
    发明专利
    未知

    公开(公告)号：DE19860497A1

    公开(公告)日：2000-07-06

    申请号：DE19860497

    申请日：1998-12-28

    Applicant: BASF AG

    Inventor： LOCKEMANN CHRISTIAN ,  LUEDDECKE ERIK ,  HORN DIETER

    IPC: A61J3/02 ,  B01J2/00 ,  B01J2/04 ,  B01J3/00 ,  B01J13/06 ,  B01J19/00

    Abstract: Preparation of stable fine particle powders comprises: (a) dissolving one or more substances (A) and one or more substances (B) in a super-critical, compressible fluid; and (b) relaxing the fluid along a residence path, where the solubility limit of (A) is earlier than that of (B) in the residence path. An Independent claim is included for an apparatus for carrying out the process comprising a first high pressure autoclave (2) for dissolving substance (A) in a super critical fluid and a second high pressure autoclave for dissolving substance (B) in a super critical fluid. Two separate feeds (3, 7) connected to relaxation devices (4, 8) relax both fluids so that their flows intersect.

    WATER -DISPERSIBLE CAROTENOID PIGMENTS
    29.
    发明专利
    WATER -DISPERSIBLE CAROTENOID PIGMENTS 未知

    公开(公告)号：AU599196B2

    公开(公告)日：1990-07-12

    申请号：AU1070888

    申请日：1988-01-22

    Applicant: BASF AG

    Inventor： HORN DIETER ,  LUEDDECKE ERIK ,  SCHAEFER PETER

    IPC: A23K1/16 ,  A23L1/275 ,  A23L5/44 ,  B01F23/00 ,  C07C403/00 ,  C09B61/00 ,  C09B67/00 ,  C09B67/42

    Abstract: Preparation of pulverulent water-dispersible carotenoid preparations in which the carotenoid is present dissolved in an edible oil and the oil solution is present in the form of small droplets, by rapidly dissolving a carotenoid in a volatile, water-miscible, organic solvent at between 50 and 240 DEG C together with from 1.5 to 20 times the weight, based on the carotenoid, of an edible oil and also an emulsifier, under atmospheric or superatmospheric pressure, immediately mixing the resulting molecularly dispersed solution with an aqueous solution of a protective colloid at between 0 DEG C and 50 DEG C to transfer the hydrophilic solvent component into the aqueous phase, forming the hydrophobic oil phase, which contains the carotenoid in solution, as a microdisperse phase, and stripping the resulting two-phase mixture of solvent and water in a conventional manner.

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