龙眼核棕色素醇提工艺及稳定性研究  

Study on the Extraction of the Brown Pigment from Euphoria Longan Seed and Its Stability

作　　者：梁志[1] 陈颖峰[1] 王春晓[1] 黄朝镇[1] 李家勇[1] 邹法彬[1] 

机构地区：[1]茂名职业技术学院化学工程系,广东茂名525011

出　　处：《广东化工》2008年第7期45-47,共3页Guangdong Chemical Industry

摘　　要：对龙眼核棕色素的提取工艺及其稳定性进行了研究,结果表明:以60%乙醇溶剂作为提取剂,料液配比为1︰25,温度为80°C,提取时间为80 min是最佳提取工艺条件;龙眼核棕色素在酸性、加热、有氧化剂H2O2和防腐剂苯甲酸的加入下稳定,但在强碱、有还原剂(Na2SO3)加入的条件下不稳定。The extraction of the brown pigment from Euphoria Longan seed and its stability were studied. The optimum extraction technology was as follow： 60 % ethanol as a extraction solvent, material to liquid ratio 1 ： 25, extraction temperature 80 ℃, extraction time 80 min; the stability experiment of brown pigment showed that it was more stable on the condition of acid, under 100 ℃, adding antioxidant（H2O2） and prevervative （benzoic acid） than the condition of alkalinous and adding reducer （Na2SO3）.

关 键 词：龙眼核 色素 提取 稳定性 正交 

分 类 号：TS264.4[轻工技术与工程—发酵工程] TS235.4[轻工技术与工程—食品科学与工程]