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    • 8. 发明授权
    • Stable, aqueous dispersions and stable, water-dispersible dry xanthophyll powder, their production and use
    • 稳定的水分散体和稳定的水分散性干叶黄素粉,其生产和使用
    • US06296877B1
    • 2001-10-02
    • US09319600
    • 1999-06-08
    • Helmut AuweterHeribert BohnErik Lüddecke
    • Helmut AuweterHeribert BohnErik Lüddecke
    • A61K916
    • C07C403/24A23K20/179A23L5/44A61K9/145A61K9/146A61K31/047A61K31/122C09B61/00C09B67/0084C09B67/0091
    • Preparation of a stable aqueous dispersion, or a stable water-dispersible dry powder, of xanthophylls, 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, 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 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.
    • 制备叶黄素的稳定的水分散体或稳定的水分散性干粉,其包括a)在水混溶性中制备具有或不具有乳化剂和/或食用油的至少一种叶黄素的分子分散溶液 有机溶剂或水与水混溶性有机溶剂的混合物在30℃以上,b)将该溶液与保护胶体混合物b1)混合,其中混合物包含至少一种低分子量 分子量保护胶体组分和至少一种平均分子量至少为10,000的高分子量保护胶体组分,b2)将溶剂组分转移到水相中,形成叶黄素的疏水相 作为纳米分散相),并且如果合适,制备水分散性干粉,将所得分散体从溶剂和水中释放出来,并在存在或不存在涂布垫的情况下干燥 呃