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    STABLE, AQUEOUS DISPERSIONS AND STABLE, WATER-DISPERSIBLE DRY XANTHOPHYLL POWDER, THEIR PRODUCTION AND USE
    3.
    发明专利
    STABLE, AQUEOUS DISPERSIONS AND STABLE, WATER-DISPERSIBLE DRY XANTHOPHYLL POWDER, THEIR PRODUCTION AND USE 未知

    公开(公告)号：CA2274467C

    公开(公告)日：2006-08-01

    申请号：CA2274467

    申请日：1997-12-01

    Applicant: BASF AG

    Inventor： LUDDECKE ERIK ,  BOHN HERIBERT ,  AUWETER HELMUT

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

    Abstract: In a process for producing a stable, aqueous dispersion or a stable, water- dispersible dry xanthophyl] powder: (a) a molecular disperse solution of at least one xanthophyll if required together with an emulsifier and/or an edible oil is produced in a water-miscible organic solvent or in a mixture of water and a water-miscible organic solvent, at temperatures above 30 .degree.C; (b) this solution is mixed with an aqueous solution of a mixture of protective colloids; (b1) the mixture containing at least one low molecular protective colloid component and at least one high molecular protective colloid component whose molecular weights differ by at least 10,000; (b2) the solvent component being convened into the aqueous phase and the hydrophobic phase of the xanthophyll being produced as a nanodisperse phase; and (c) if required, the thus obtained dispersion is freed from solvent and water to produce a water-dispersible dry powder and dried, if required in the presence of a coating material.

    5.
    发明专利
    未知

    公开(公告)号：ES2182139T3

    公开(公告)日：2003-03-01

    申请号：ES97952027

    申请日：1997-12-01

    Applicant: BASF AG

    Inventor： AUWETER HELMUT ,  BOHN HERIBERT ,  LUDDECKE 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.

    Xanthophylls related to carotenoid class used for colouring foods, feeds and administered forms of pharmaceuticals
    8.
    发明专利
    Xanthophylls related to carotenoid class used for colouring foods, feeds and administered forms of pharmaceuticals 未知

    公开(公告)号：NZ336133A

    公开(公告)日：2001-04-27

    申请号：NZ33613397

    申请日：1997-12-01

    Applicant: BASF AG

    Inventor： AUWETER HELMUT ,  BOHN HERIBERT ,  LUDDECKE 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: A process for preparing a stable aqueous dispersion, or a stable water-dispersible dry powder, of xanthophylls for use as colouring foods, feeds or administered in the form of a pharmaceutical, which comprises a) 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, i) in which the mixture comprises at least one low-molecular-weight non-gelling protein hydrolysate and at least one high-molecular-weight ,gelling gelatine whose mean molecular weights differ by at least 10,000, ii) the solvent component being transferred to the aqueous phase and the hydrophobic phase of the xanthophyll being formed as a nanodisperse phase, c) 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.

    Stable, aqueous dispersions and stable, water-dispersible dry xanthophyll powder, their production and use
    9.
    发明专利
    Stable, aqueous dispersions and stable, water-dispersible dry xanthophyll powder, their production and use 未知

    公开(公告)号：AU5559698A

    公开(公告)日：1998-07-03

    申请号：AU5559698

    申请日：1997-12-01

    Applicant: BASF AG

    Inventor： AUWETER HELMUT ,  BOHN HERIBERT ,  LUDDECKE 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.

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