| 标题 |
 Isolation and Characterization of Water-Soluble Intermediates of Blue Pigments Transformed from Geniposide of Gardenia jasminoides 相关领域
化学
栀子花
颜料
洗脱
色谱法
栀子花
京尼平
柱色谱法
质子核磁共振
葡萄糖苷
苷元
分数（化学）
立体化学
有机化学
糖苷
壳聚糖
病理
中医药
替代医学
医学
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| 备注 |
Jee-Eun Park 朴智恩Jae-Youn Lee 李在寅Hong-Gyu Kim 金弘圭Tae-Ryong Hahn 泰龙·韩Young-Sook Paik 白英淑
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| 其它 | Gardenia blue dye was obtained through the reaction of methylamine with genipin, the aglycone of geniposide isolated from the fruits of Gardenia jasminoides. The resulting blue pigments were passed through Bio-Gel P-2 resin yielding five fractions, GM1−GM5. Four fractions (GM1−GM4) were all blue pigments, and the first eluted higher molecular weight fraction GM1 had a higher tinctorial strength than the later eluted lower molecular weight fractions, GM2−GM4. The last eluted GM5 fraction with λmax of 292 nm was colorless and was confirmed as the true intermediate of the blue pigments on the basis of UV−vis spectrophotometric evidence. The GM5 fraction was composed of two epimeric isomers, and their structures were characterized by 1H NMR, 1H−1H COSY, 13C NMR, and HMQC and HMBC spectral measurements. |
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