| 无水有机醇介质中盐酸对马铃薯淀粉性质的影响 |
| |
| 引用本文： | 罗志刚;谢显华;杨连生;徐中岳.无水有机醇介质中盐酸对马铃薯淀粉性质的影响[J].华南理工大学学报(自然科学版),2009,37(3). |
| |
| 作者姓名： | 罗志刚;谢显华;杨连生;徐中岳 |
| |
| 作者单位： | 华南理工大学轻工与食品学院碳水化合物研究室;华南理工大学,轻工与食品学院 |
| |
| 摘 要： | 本文研究了马铃薯淀粉在有机醇溶液中酸变性前后的物化性质。采用无水甲醇、无水乙醇、异丙醇及正丁醇作溶剂，用盐酸对马铃薯淀粉进行改性。结果表明经酸处理的马铃薯淀粉与原淀粉相比，随有机醇介质（从甲醇到正丁醇）碳原子数量的增加，颗粒表面出现的裂隙逐渐明显、冻溶稳定性依次减弱、透光率依次增强、黏度依次减小，在不同温度下溶解度逐渐增加，膨胀度逐渐降低。以上数据表明酸在不同有机醇介质中对淀粉的作用程度不同，从甲醇到丁醇依次增强。
|
| 关 键 词： | 马铃薯淀粉 有机醇 酸变性 性质 |
| 收稿时间： | 2008-3-13 |
| 修稿时间： | 2008-6-2 |
Properties of Potato Starch treated in Different Anhydrous Alcohols with Hydrochloric Acid |
| |
| LUO Zhi-Gang XIE Xian-Hua.Properties of Potato Starch treated in Different Anhydrous Alcohols with Hydrochloric Acid[J].Journal of South China University of Technology(Natural Science Edition),2009,37(3). |
| |
| Authors: | LUO Zhi-Gang XIE Xian-Hua |
| |
| Abstract: | The physicochemical properties of potato starch was studied before and after treated in anhydrous alcohols with acid. Potato starch was treated in anhydrous methanol, ethanol, 2-propanol and 1-butanol with hydrochloric acid. The results showed that the fissure on the surface of granules could be observed after starch acid-alcohol treated, and the fragmentation of granules could produce with the increasing of carbon number of alcohol. Acid-alcohol treatment decreased syneresis, viscosity and the swelling power, and increased transparency and the solubility as the increasing of carbon number of alcohol from ethanol to 1-butanol. The foregoing data showed starch could be made more susceptible to acid hydrolysis in different alcohols from methanol to 1-butanol. |
| |
| Keywords: | Potato starch Alcohol Acid modification Properties |
|
| 点击此处可从《华南理工大学学报(自然科学版)》浏览原始摘要信息 |
