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公开(公告)号：US20220195197A1
公开(公告)日：2022-06-23
申请号：US17603621
申请日：2020-04-06
摘要： An object of the present invention is to provide a gardenia blue pigment that can stably maintain the color tone even after heating under acidic conditions, and a method for producing the gardenia blue pigment. A gardenia blue pigment that can stably maintain the color tone even after heating under acidic conditions is obtained by carrying out the following first and second steps: the first step of reacting walnut peptide, bitter melon peptide, and/or soy peptide with genipin in a solvent without the supply of a gas containing oxygen; and the second step of treating the reaction solution obtained in the first step with the supply of a gas containing oxygen.
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公开(公告)号：US20230303846A1
公开(公告)日：2023-09-28
申请号：US18043248
申请日：2020-08-28
摘要： The purpose of the present invention is to provide: a gardenia blue pigment which contains a product of a reaction between genipin and a compound having a primary amino group, and which offers a bright, fresh blue color tone having reduced redness; and a method for producing same. This gardenia blue pigment, which offers a bright, fresh blue color tone having reduced redness, is obtained by carrying out a first step in which genipin and at least one peptide selected from the group consisting of soybean peptides, sesame peptides, and rice peptides are reacted in a solvent without supplying an oxygen-containing gas, and a second step in which a reaction liquid obtained in the first step is processed under an oxygen-containing gas supply.
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公开(公告)号：US20220232864A1
公开(公告)日：2022-07-28
申请号：US17603675
申请日：2020-04-06
IPC分类号： A23L5/43 , C07D311/94
摘要： An object of the present invention is to provide a gardenia blue pigment that exhibits a vivid blue tone that is bright and has reduced redness, and a method for producing the gardenia blue pigment. A gardenia blue pigment that exhibits a vivid blue tone that is bright and has reduced redness is obtained by carrying out the following first and second steps: the first step of reacting at least one peptide selected from the group consisting of soy peptide, sesame peptide, and rice peptide with genipin in a solvent without the supply of a gas containing oxygen; and the second step of treating the reaction solution obtained in the first step with the supply of a gas containing oxygen.
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