检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
出 处:《中国油脂》2006年第9期53-56,共4页China Oils and Fats
摘 要:花生四烯酸(AA)是一种重要的人体必需多不饱和脂肪酸(PUFA),具有广泛的生物活性。将真菌油脂皂化制得的混合脂肪酸经尿素包合法纯化和甲酯化后,再利用负载在氧化铝上的氯化亚铜(CuCl-Al2O3)(质量比为1:1)为固定相,以含1%丙酮的正己烷溶液(体积比)为流动相的柱色谱法进一步纯化其中的花生四烯酸,流速1~1.5mL/min,负载量0.52g/100gCuCl-Al2O3,结果使花生四烯酸含量由74.9%提高到93.5%,收率为80.5%。采用气相色谱(GC)进行跟踪检测分析。Arachidonic acid ( AA ), an importantly essential polyunsaturated fatty acid ( PUFA ) to human nutrient, has broad biological activities. The PUFA ,which obtained from saponified fungal oil, was isolated by urea inclusion firstly ,and then methylated. The PUFA methyl esters was further purified via Al2O3-supported CuCl (l: 1, W/ W) chromatography under the following conditions:the eluent 1% acetone in hexane ( V/V) , the flowing rate 1 - 1.5 mL/min,and the loading amount 0. 52 g/100 g CuCl-Al2O3. The product of high purity which contains 93.5% AA with 80. 5% yield was obtained from the PUFA methyl esters containing 74. 9% AA. The process was monitored and analyzed by GC.
关 键 词:花生四烯酸 真菌油脂 尿素包合 CuCl-Al2O3柱色谱 气相色谱 纯化
分 类 号:TS227[轻工技术与工程—粮食、油脂及植物蛋白工程]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.40