摘要
对初提柚皮色素用聚酰胺柱层析和吉尔森制备型高效液相色谱进行分离和纯化 ,再通过紫外光谱、红外光谱和 GC/MS鉴定。结果表明 ,着色力最好的物质是 5 -羟基 - 3羧基吲哚 ,它为红褐色颗粒状结晶。这是从柚皮中分离得到的一种新天然食用色素成分 。
The raw extracted product of pomelo peel pigment (PPP) contains many impurities, and is easily degraded. Therefore, it was isolated and purified by polyamide column chromatography using a Gilson auto-preparative HPLC system. The results showed substance B is the best in tinting strength for food. The structure of substance B was identified by GC-MS technique, IR and UV spectroscopy. It was found that B is a new compound from pomelo peel 5-hydroxy-3-carboxy-1H-indole. It forms red-brown crystallines. The compound is good in coloring and might have some physiological activities.
出处
《化学世界》
CAS
CSCD
北大核心
2004年第8期410-412,409,共4页
Chemical World
基金
国家自然科学基金资助项目(29876013)
关键词
柚皮色素
活性物质
分离
鉴定
peel pigment
active substance
isolation
structure identification
