| V_A棕榈酸酯微胶囊的制备及性能研究 |
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| 引用本文： | 杜静玲,谭天伟. V_A棕榈酸酯微胶囊的制备及性能研究[J]. 食品与发酵工业, 2007, 33(1): 48-50 |
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| 作者姓名： | 杜静玲 谭天伟 |
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| 作者单位： | 北京化工大学北京市生物加工过程重点实验室,北京,100029 |
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| 基金项目： | 国家自然科学基金;高等学校博士学科点专项科研项目;国家科技攻关计划 |
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| 摘 要： | 以聚天冬氨酸和明胶为壁材,采用单凝聚结合喷雾干燥法制备VA棕榈酸酯微囊。结果表明,最佳原料配比为:壁材浓度为0.1g/mL;芯材与壁材质量比为1∶4;壁材配比为m(明胶)∶m(聚天冬氨酸)=1∶1;乳化剂用量为1.5%;乙醇与水的体积比为1∶2。最佳微胶囊化工艺参数为:喷雾干燥进口温度为160℃,出口温度为70℃,乳化温度为38℃。经过7d的高温(60℃)加速氧化试验,微囊中VA棕榈酸酯的含量为初始含量的84.3%,较好地增加了VA棕榈酸酯的稳定性。
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| 关 键 词： | 微胶囊 聚天冬氨酸 VA棕榈酸酯 喷雾干燥法 |
| 修稿时间： | 2006-11-13 |
Preparation and Properties of Vitamin A Palmitate Microcapsules |
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| Du Jingling,Tan Tianwei. Preparation and Properties of Vitamin A Palmitate Microcapsules[J]. Food and Fermentation Industries, 2007, 33(1): 48-50 |
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| Authors: | Du Jingling Tan Tianwei |
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| Affiliation: | Key Laboratory of Bioprocess of Beijing, Beijing University of Chemical Technology, Belling 100029 ,China |
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| Abstract: | To improve the stability of vitamin A palmitate,microcapsules for vitamin A palmitate were prepared by dry spray with polyaspartic acid and gelatin as wall material. The optimal parameter were found as following: the ratio of polyaspartic acid to gelatin 1∶1(W/W); the ratio of core material to wall material 1∶4;wall material concentration 10% (W/V),emulsifier concentration 1.5%; the ratio of absolute alcohol to water 1:2(V/V).For spray drying,the inlet air temperature 160℃, and outlet air temperature 70℃;The temperature of emulsification 38℃. More than 84.3%of vitamin A palmitate was obtained from seven day- accelerating experiment at 60℃. |
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| Keywords: | microcapsules polyaspartic acid vitamin A palmitate spray drying |
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