| 明胶水溶液粘度影响因素分析 |
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| 引用本文： | 李佳林,;姚云真,;林绍斌.明胶水溶液粘度影响因素分析[J].明胶科学与技术,2014(4):200-204. |
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| 作者姓名： | 李佳林 ;姚云真 ;林绍斌 |
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| 作者单位： | [1]国家轻工业三胶产品质量监督检测中心(北京),北京100029; [2]北京化工大学材料科学与工程学院,北京100029 |
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| 摘 要： | 明胶具有粘性性能,可作为增稠剂应用于食品、医学、化妆品等行业。本文主要考察了明胶溶液的浓度对其溶液粘度的影响以及酸、碱、盐和放置时间对明胶溶液粘度的影响,确定影响明胶溶液粘度改变的主要因素。实验结果表明,明胶溶液的粘度受浓度影响很大。明胶溶液粘度随浓度的增加而升高;室温条件下,几乎不受放置时间的影响。在明胶溶液的等电点处,溶液粘度最小。随着溶液pH值的减小(或增大),溶液粘度均呈现先增大后减小的趋势。
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| 关 键 词： | 粘度 明胶 增稠剂 |
Studies on Influencing Factors in Viscosity of Gelatin |
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| Affiliation: | Li Jialin, Yao Yunzhen, Lin Shaobin ( 1. China Quality Supervision and Inspection Center for Gelatin and Gelatin Used Products ( Beijing), Beijing 100029 2. College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029) |
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| Abstract: | Gelatin could be applied in food, medical, and cosmetics as a thickener with its cohesive property. In this work, the effect of the concentration of gelatin solution as well as the standing time of acid, alkali and salt on viscosity have been investigated. It is indicated that the concentration of gelatin solution has a significant effect on its viscosity. The viscosity increased with the increasing concentration and almost had no change with the standing time at room temperature. The viscosity showed the lowest at isoelectric point. In addition, it is showed that the viscosity kept the fluctuation all the time with firstly increased and then decreased no matter the pH value increased or decreased. |
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| Keywords: | viscosity gelatin thickening agent |
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