【摘要】 以栀子为材料,OD比值为指标,研究乙醇浓度、温度和时间对栀子黄色素提取效果影响,优化栀子黄色素提取工艺;以藏花素为对照品,分光光度法测不同产地栀子中栀子黄色素含量和色价,评价不同产地栀子的品质;用大孔树脂AB-8纯化色素,研究高色价栀子黄色素的制备。结果表明:栀子黄色素最佳提取条件为60%乙醇,于40℃静置浸提60min;山栀子中栀子黄色素含量(13.07%)低于水栀子(平均为19.37%),栀子黄色素含量存在品种差异;经纯化,栀子黄色素色价平均提高了3倍左右,通过纯化可获得高品质栀子黄色素。更多还原

【Abstract】 Gardenia as materials,OD ratio as an indicator,this paper studied ethanol concentration,temperature and time on the effect of gardenia yellow pigment extracted,and optimizated the extraction process of gardenia yellow pigment;Taking crocin as reference,the content and color value of gardenia yellow pigment were determined by spectrophotometry,and the quality of Gardenia from different habitats was evaluated;this paper purified pigment with macroporous resin AB-8,and study on preparation of gardenia yellow pigment with high color value.The results show that the gardenia yellow pigment optimum extraction conditions was 60% ethanol,and allowed to stand in the extraction 60 min 40 ℃;The content of gardenia yellow pigment(13.07%) was lower than that of water gardenia(average 19.37%),the content of gardenia yellow pigment was different in different varieties;After purification,gardenia yellow plain average price increased about 3 times,high quality can be obtained by purification of gardenia yellow pigment.更多还原