宁夏枸杞色素的提取及其稳定性研究  

Studies on the Extraction and Stability of Pigment from Ningxia Lycium

作　　者：李宏燕[1] 黄小花[2] 赵广涛 

机构地区：[1]宁夏大学机械学院过程装备控制系,宁夏银川750021 [2]北方民族大学化学与化工学院,宁夏银川750021 [3]宁夏金彤枸杞生物制品有限公司,宁夏中卫755001

出　　处：《食品研究与开发》2013年第5期66-68,共3页Food Research and Development

基　　金：宁夏大学科学研究基金项目(ZR201140)

摘　　要：以乙醇为浸提溶剂提取宁夏枸杞色素,分析了色素得率和色素溶液的特征吸收波长,在此基础上研究枸杞色素的稳定性。研究结果表明提取所得枸杞色素得率为49.1%,以无水乙醇为参比,枸杞色素的特征吸收波长为395 nm;枸杞色素对温度、时间、pH、AlCl_3溶液、自然光照等具有较好的稳定性,可作为食品、医药、保健品及饮料等生产行业的色素添加剂。Based on the extraction with ethanol solvent the yield rate, absorption peak and the stability of the Lycium pigment were studied. Results showed that the yield rate of the Lycium pigment was up to 49.1% and the absorption peak of the ethanol-pigment-solution exists at 395 nm. The Lyeium pigment was stable under the condition of different temperature, time, pH, A1C13, and the nature light. So the Lyeium pigment can be used as pigment additive in food, medicine, healthy production and drink.

关 键 词：枸杞 色素 提取 稳定性 

分 类 号：TQ914[化学工程]