| 干法合成硬脂酸小麦淀粉酯的特性研 |
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| 引用本文： | 刘国琴,陈洁,韩立鹏,李琳.干法合成硬脂酸小麦淀粉酯的特性研[J].农业机械学报,2009,40(8):143-148. |
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| 作者姓名： | 刘国琴 陈洁 韩立鹏 李琳 |
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| 作者单位： | 河南工业大学粮油食品学院,郑州,450052 |
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| 基金项目： | 河南省杰出人才基金资助项目，河南省科技攻关基金资助项目，河南工业大学博士基金资助项目 |
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| 摘 要： | 以小麦淀粉为原料采用盐酸催化干法合成硬脂酸淀粉酯.考察了均质温度、均质速率和体系pH值对硬脂酸淀粉酯乳化性的影响,以及温度和剪切速率对其粘度的影响.并对产品的颜色、透明度、凝沉性、冻融稳定性等性质进行了研究.结果表明,取代度为0.013 8的硬脂酸淀粉酯的乳化性优于阿拉伯胶,乳化性受pH值影响的变化趋势与阿拉伯胶大致相同,其色差值与阿拉伯胶相当.随着产品取代度的提高,产品颜色变黄,透明度增加,凝沉程度减弱,冻融稳定性下降.
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| 关 键 词： | 小麦淀粉 硬脂酸淀粉酯 乳化性 流变学性质 |
on Synthesis of Wheat Starch Stearate by Dry Method and Its Properties |
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| Liu Guoqin,Chen Jie,Han Lipeng,Li Lin.on Synthesis of Wheat Starch Stearate by Dry Method and Its Properties[J].Transactions of the Chinese Society of Agricultural Machinery,2009,40(8):143-148. |
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| Authors: | Liu Guoqin Chen Jie Han Lipeng Li Lin |
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| Institution: | School of Food Science and Technology;Henan University of Technology;Zhengzhou 450052;China |
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| Abstract: | Wheat starch stearate was synthesized by esterification of wheat starch with stearic acid,and hydrochloric acid was added as catalyzer.The effects of temperature,homogenizing rate and pH value on emulsion capacity and the effects of temperature and shearing rate on viscosity were investigated.Furthermore,the product properties,such as color,transparency percentage,retrogradation,freeze-thaw stability were also determined.The results showed that the emulsion capacity of starch stearate is superior to that of... |
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| Keywords: | Wheat starch Starch stearate Emulsion capacity Rheology properties |
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