| 大枣多糖的水提醇沉工艺研究 |
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| 引用本文： | 李宏燕,樊君.大枣多糖的水提醇沉工艺研究[J].宁夏工程技术,2005,4(3):265-267. |
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| 作者姓名： | 李宏燕 樊君 |
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| 作者单位： | 宁夏大学,机械工程学院,宁夏,银川,750021;西北大学,化工学院,陕西,西安,710069 |
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| 基金项目： | 陕西省科技发展计划基金资助项目（2000K05G3）;西安市科技攻关基金资助项目（GG200147） |
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| 摘 要： | 以陕西特产大枣为原料，研究了其药用成分多糖的提取和分离工艺．该工艺以蒸馏水为提取剂，所得多糖提取液经一定体积分数的乙醇沉淀、氯仿-正丁醇脱蛋白、双氧水脱色等工艺后，得到大枣多糖；在此基础上，分别采用单因素试验和正交试验对大枣多糖的醇沉工艺进行了优选．试验得出最佳醇沉工艺条件为：加入无水乙醇，使乙醇最终体积分数为70％，室温静置5h．该工艺提取所得大枣多糖提取率达到3．86％，经硫酸-苯酚法分析测定其多糖质量分数为41％．
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| 关 键 词： | 大枣 多糖 水提 醇沉 |
| 文章编号： | 1671-7244(2005)03-0265-03 |
| 收稿时间： | 01 6 2005 12:00AM |
| 修稿时间： | 2005年1月6日 |
Research on extraction and isolation of jujube polysaccharide |
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| LI Hong-yan,FAN Jun.Research on extraction and isolation of jujube polysaccharide[J].Ningxia Engineering Technology,2005,4(3):265-267. |
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| Authors: | LI Hong-yan FAN Jun |
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| Abstract: | The technology of extraction and separation of polysaccharide fro m zizyphus jujube was studied. Based on this study a mature extraction process of polysaccharide was put forward. And the optimum deposited conditions were obtain ed by orthogonal test: the polysaqccharide was deposited with pure ethanol (the content of ethanol was up to 70% ) for 5h. With this technology the yield ratio of polysaccharide was up to 3.86% and the content of polysaccharide was up to 41% . |
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| Keywords: | jujube polysaccharide extraction isolation |
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