| W/O细乳液的制备及淀粉纳米微球的合成 |
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| 引用本文： | 李秉正,毛志怀. W/O细乳液的制备及淀粉纳米微球的合成[J]. 中国农业大学学报, 2012, 17(2): 144-149 |
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| 作者姓名： | 李秉正 毛志怀 |
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| 作者单位： | 1. 中国农业大学工学院,北京100083／广西科学院非粮生物质酶解国家重点实验室／国家非粮生物质能源工程技术研究中心／广西生物炼制重点实验室,南宁530007
2. 中国农业大学工学院,北京,100083 |
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| 基金项目： | 广西科技攻关项目，广西自然科学基金项目，广西科学院基本科研业务费资助项目 |
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| 摘 要： | 以高压均质为乳化方式,采用细乳液交联法合成淀粉纳米微球。对W/O细乳液制备条件的研究结果表明:Span-80与Tween-80质量比为84∶16,淀粉溶液中NaCl与H2O质量比为6∶100时可制得圆整性和分散性较好的粗乳液;复合乳化剂与环己烷的质量体积比为0.04～0.08g/mL时,细乳液粒径和多分散系数(PDI)变化不明显;随着均质压力的提高,细乳液粒径和PDI逐渐减小;随着均质次数的增加,细乳液粒径和PDI先是逐渐减小,均质5次后变化趋于平缓。以环氧氯丙烷为交联剂,成功制得了粒径约50～100nm淀粉纳米微球。
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| 关 键 词： | 淀粉 纳米微球 高压均质 细乳液 交联 |
| 收稿时间： | 2011-09-28 |
Preparation of W/O miniemulsion and synthesis of starch nanoparticles |
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| LI Bing-zheng and MAO Zhi-huai. Preparation of W/O miniemulsion and synthesis of starch nanoparticles[J]. Journal of China Agricultural University, 2012, 17(2): 144-149 |
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| Authors: | LI Bing-zheng and MAO Zhi-huai |
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| Affiliation: | 1*(1.College of Engineering,China Agricultural University,Beijing 100083,China; 2.State Key Laboratory of Non-Food Biomass and Enzyme Technology/National Engineering Research Center for Non-food Biorefinery/Guangxi Key Laboratory of Biorefinery,Guangxi Academy of Sciences,Nanning 530007,China) |
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| Abstract: | Starch nanoparticles were prepared by water-in-oil(W/O) miniemulsion-crosslinking method assisted by high-pressure homogenization.The preparation of W/O miniemulsion was study and the results indicated that coarse emulsion of spherical shape with good dispersibility could be prepared at 84∶16 mass ratio of Span-80 to Tween-80 and 6∶100 mass ratio of NaCl to H2O.The Z-average diameter and polydispersity index(PDI) of W/O miniemulsion changed slightly when the mass-to-volume ratio of compound emulsifier to cyclohexane ranged from 0.04 to 0.08 g/mL,but declined gradually along with the increase in the homogenization pressure.With the increase in homogenization cycle,the Z-average diameter and PDI decreased gradually in the beginning and tended to be stable after 5 cycles.It is demonstrated that starch nanoparticles of 50-100 nm can be successfully synthesized in W/O miniemulsion using epichlorohydrin as crosslinking agents. |
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| Keywords: | starch nanoparticle high-pressure homogenization miniemulsion crosslinking |
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