| 机械活化乙酰化淀粉用作尿素缓释膜的研究 |
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| 引用本文： | 陈渊,黄祖强,谢祖芳,朱万仁.机械活化乙酰化淀粉用作尿素缓释膜的研究[J].安徽农业科学,2009(2):714-717. |
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| 作者姓名： | 陈渊 黄祖强 谢祖芳 朱万仁 |
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| 作者单位： | 玉林师范学院化学与生物系,广西玉林,537000;广西大学化学化工学院,广西南宁,530004 |
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| 基金项目： | 广西教育厅科研项目(200708LX139) |
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| 摘 要： | 目的]研究机械活化乙酰化淀粉用作尿素缓释膜，为在农业上应用机械活化乙酰化淀粉制作尿素缓释膜提供技术依据。方法]采用浇铸法制备乙酰化淀粉膜，研究了取代度、铸膜液溶剂种类、铸膜液浓度和铸膜液温度对膜性能的影响。以淋溶法对包膜尿素释放特性进行评价。结果]机械活化木薯乙酰化淀粉成膜性能好，工艺简单，操作简便；包膜尿素淋溶9次后尿素总溶出率为57．73％，比普通尿素的尿素总溶出率降低39．45％。结论]用机械活化乙酰化淀粉包膜尿素后，对尿素态氮有释放有明显的缓释放作用。
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| 关 键 词： | 木薯淀粉 机械活化 乙酰化 包膜尿素 缓释放 |
Study on Acetylated Starch from Mechanical Activated Starch as Controlled Urea Release Membrane |
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| CHEN Yuan et al.Study on Acetylated Starch from Mechanical Activated Starch as Controlled Urea Release Membrane[J].Journal of Anhui Agricultural Sciences,2009(2):714-717. |
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| Authors: | CHEN Yuan |
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| Institution: | CHEN Yuan et al(Department of Chemistry , Biology,Yulin Normal University,Yulin,Guangxi 537000) |
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| Abstract: | Objective] The purpose of this research was to study the acetylated starch from mechanical activated starch as controlled urea release membrane,to provide technique basis for acetylated cassava starch of mechanical activation as controlled urea release membrance applied in agriculture.Method] Acetylated starch from mechanical activated starch of membrane was produced using solvent casting method.The effects of degree of substitution,solvent species,solvent concentration and solvent temperature on membrane... |
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| Keywords: | Cassava starch Mechanical activation Acetylate Coated urea Controlled release |
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