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    ANTHOCYANIN COMPLEX SYNTHESIZED FROM DATE PALM LEAF EXTRACT
    3.
    发明申请
    ANTHOCYANIN COMPLEX SYNTHESIZED FROM DATE PALM LEAF EXTRACT 有权

    公开(公告)号：US20220112161A1

    公开(公告)日：2022-04-14

    申请号：US17070379

    申请日：2020-10-14

    Applicant: UNITED ARAB EMIRATES UNIVERSITY

    Inventor： HASSAN MOHAMED HASSAN ABDALLA

    IPC: C07C403/24 ,  A23L5/44 ,  C09B61/00

    Abstract: The anthocyanin synthesized from date palm may include co-pigmented anthocyanin complexes synthesized by extracting an anthocyanin from date palm leaves and reacting the anthocyanin with phenolic compounds also resulting from date palm leaf extraction in order to produce a co-pigmented anthocyanin complex. Date palm leaf powder may be mixed with water containing about 1.08% hydrochloric acid in a glass or ceramic lined reactor, and extraction may be performed by boiling the mixture for an hour or more. The color of the co-pigmented anthocyanin complex produced by this method may be adjusted by continuing the heating in half hour increments, in order to deepen the hue of the co-pigmented anthocyanin complex. The co-pigmented anthocyanin complex may be separated from the liquid mixture by first filtering the liquid mixture, refining the liquid mixture by adding gelatin to form a colloidal solution, and freeze-drying the refined liquid mixture.

    PROCESS FOR PURIFYING ASTAXANTHIN AND CANTHAXANTHIN
    7.
    发明申请
    PROCESS FOR PURIFYING ASTAXANTHIN AND CANTHAXANTHIN 有权

    公开(公告)号：US20170305850A1

    公开(公告)日：2017-10-26

    申请号：US15516216

    申请日：2015-10-01

    Applicant: BASF SE

    Inventor： Bernd SCHÄFER ,  Wolfgang SIEGEL

    IPC: C07C403/24

    CPC classification number: C07C403/24 ,  C07C2601/16 ,  C09B61/00 ,  C09B67/0096

    Abstract: The present invention relates to a process for purifying the xanthophylls astaxanthin and canthaxanthin.The process comprises suspending the xanthophyll in an organic solvent or solvent mixture, treating the suspension of the xanthophyll in the organic solvent or solvent mixture at elevated temperature, and subsequent separation off of the xanthophyll from the solvent by a solid-liquid separation, wherein the organic solvent is selected from ketones of the general formula (I) and mixtures of ketones of the general formula (I) where R1 is C1-C4 alkyl and R2 is selected from C1-C6 alkyl, C3-C8 cycloalkyl, phenyl and benzyl, wherein the phenyl rings in the two last-mentioned radicals are unsubstituted or can have 1 or 2 methyl groups, or R1 and R2 together are linear C4-C6 alkylene, which can bear 1, 2 or 3 methyl groups as substituents.

    PROCESS FOR A DIRECT ONE-POT TRANSFORMATION OF LUTEIN TO BETA-CRYPTOXANTHIN VIA ITS ACETATE ESTER
    10.
    发明申请
    PROCESS FOR A DIRECT ONE-POT TRANSFORMATION OF LUTEIN TO BETA-CRYPTOXANTHIN VIA ITS ACETATE ESTER 有权
    罗丹明通过其乙酸酯直接转化成β-酪氨酸的方法

    公开(公告)号：US20160115122A1

    公开(公告)日：2016-04-28

    申请号：US14891499

    申请日：2014-05-16

    Applicant: UNIVERSITY OF MARYLAND, COLLEGE PARK

    Inventor： Frederick KHACHIK

    IPC: C07C403/24

    CPC classification number: C07C403/24 ,  C07C2601/16

    Abstract: The present invention relates to a process for converting commercially available lutein and/or lutein esters from extracts of marigold flower petals to (3R)-β-cryptoxanthin (major) and (3R,6′R)-α-cryptoxanthin (minor) in ratios ranging from 95:5 to 98:2 in a one-pot reaction at room temperature. Because the entire process can be carried out by employing safe and environmentally friendly food-grade reagents, the resulting mixture of these carotenoids is suitable for human consumption as a dietary supplement.

    Abstract translation: 本发明涉及将市售的叶黄素和/或叶黄素酯从万寿菊花瓣提取物转化为（3R） - 重金黄素（主要）和（3R，6'R）-α-隐黄质（小） 在室温下的一锅反应中的比例为95:5至98:2。 因为整个过程可以通过使用安全和环保的食品级试剂进行，所得到的这些类胡萝卜素的混合物适合人类作为膳食补充剂使用。

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