Coloring composition containing L-DOPA and L-arginine and forming a non-covalent derivatization complex
    1.
    发明授权
    Coloring composition containing L-DOPA and L-arginine and forming a non-covalent derivatization complex 有权
    含有L-DOPA和L-精氨酸并形成非共价衍生复合物的着色组合物

    公开(公告)号:US08118880B1

    公开(公告)日:2012-02-21

    申请号:US12946461

    申请日:2010-11-15

    IPC分类号: C09B67/00

    摘要: A natural coloring composition for coloring materials, and methods of its use. The coloring composition comprises a natural precursor aromatic ring molecule such as L-DOPA that is oxidatively oligomerized or polymerized in the presence of arginine and an activator, such as a salt or an enzyme, wherein the L-DOPA and the amino acid form a specific non-covalent interaction. The natural coloring composition can also include a buffer, colorant, stabilizer, and/or thickening agent, and can comprise one or two inactive solutions that are combined to form an active coloring composition.

    摘要翻译: 用于着色材料的天然着色组合物及其使用方法。 着色组合物包含天然前体芳环分子如L-DOPA,其在精氨酸和活化剂如盐或酶的存在下被氧化低聚或聚合,其中L-DOPA和氨基酸形成特异性 非共价相互作用。 天然着色组合物还可以包括缓冲剂,着色剂,稳定剂和/或增稠剂,并且可以包含一种或两种组合形成活性着色组合物的无活性溶液。