| 黄芪多糖提取工艺及真空膜蒸馏浓缩提取液的研究 |
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| 引用本文： | 袁丽娜,张蕾,韩怀远,唐娜.黄芪多糖提取工艺及真空膜蒸馏浓缩提取液的研究[J].天津科技大学学报,2014(3):53-57. |
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| 作者姓名： | 袁丽娜 张蕾 韩怀远 唐娜 |
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| 作者单位： | 天津市海洋资源与化学重点实验室 天津科技大学海洋科学与工程学院,天津300457 |
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| 基金项目： | 天津市滨海新区科技小巨人成长计划资助项目（2011-XJR13020）;天津市科技支撑计划资助项目（12ZCDZSF06900-3）
致谢：本研究得到国家自然科学基金资助（21376178）,谨致谢忱! |
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| 摘 要： | 以黄芪提取液的多糖得率为考核指标,采用正交实验设计的方法优化并确定了黄芪多糖提取的最佳工艺条件为:提取温度70℃,加水7倍,提取3次,每次提取120min.采用真空膜蒸馏浓缩黄芪提取液,以不同条件下制备的聚丙烯疏水微孔膜作为膜材料,考察了过程通量变化,并分析了在膜蒸馏浓缩过程中膜污染产生的原因.结果表明,提高膜蒸馏过程的进料流量可以减轻膜污染程度.
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| 关 键 词： | 真空膜蒸馏 黄芪提取液 膜污染 |
Extracting Conditions of Astragalus Polysaccharides and the Concentration of its Solution through Vacuum Membrane Distillation |
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| YUAN Lina,ZHANG Lei,HAN Huaiyuan,TANG Na.Extracting Conditions of Astragalus Polysaccharides and the Concentration of its Solution through Vacuum Membrane Distillation[J].Journal of Tianjin University of Science & Technology,2014(3):53-57. |
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| Authors: | YUAN Lina ZHANG Lei HAN Huaiyuan TANG Na |
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| Institution: | (Tianjin Key Laboratory of Marine Resources and Chemistry, College of Marine Science and Engineering Tianjin University of Science ＆ Technology, Tianjin 300457, China) |
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| Abstract: | Taking the extracting rate of astragalus polysaccharides as the target index, the extracting conditions of astragalus polysaccharides were optimized and determined through orthogonal experiments. The extracting conditions are as follows： the temperature is 70 ℃, the added amount of water is 3 times of the raw astragalus materials, extracting 3 times, and 120 min each. While concentrating the solution of the astragalus extracts through vacuum membrane distillation with prefabricated polypropylene membranes, the flux change was examined, and the cause of membrane fouling during this process was analyzed. Results show that the membrane fouling could be effectively reduce by increasing feed flow. |
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| Keywords: | vacuum membrane distillation solution of astragalus extracts membrane fouling |
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