化学
色谱法
十二烷基硫酸钠
水溶液
酰化
葡萄糖苷
脂肪酸
颜料
有机化学
医学
病理
催化作用
替代医学
作者
Marta Guimarães,Nuno Mateus,Víctor de Freitas,Luís Cruz
标识
DOI:10.1021/acs.jafc.8b03536
摘要
Anthocyanins are water-soluble pigments with limited application in lipophilic matrices such as lipid-based foods and cosmetic formulations. In this work, the liposolubility improvement of cyanidin-3-glucoside (cy3glc) was performed by enzymatic esterification with saturated fatty acids with variable chain lengths, and their thermostabilities were evaluated at different pH values in a lipophilic medium (an aqueous sodium dodecyl sulfate solution) by means of UV–vis spectroscopy. Overall, lipophilic cy3glc derivatives showed improved color stability and lowered sensitivity to thermal degradation than nonmodified cy3glc in an SDS micellar solution between pH 3 and 7.
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