摘要
研究了溶解在丙三醇(GL)/水混合溶剂中的壳聚糖(CS)黏度随储存时间、储存温度的变化规律,探讨了GL对CS溶液储存稳定性的影响。结果表明,室温时,GL的加入可以有效改善温度升高导致的CS溶液储存稳定性的下降趋势;相比于室温,1℃时,使用GL作为稳定剂的CS溶液体系在6.5 h内增比黏度几乎不变,放置99 h后,含有GL的CS溶液增比黏度也仅下降了3.8%,小于同等温度下水溶液中的CS增比黏度下降比例的1/2。GL的加入可以有效提高CS的储存稳定性,1℃下储存时,GL使CS溶液达到较佳的储存稳定性能。
The effects of glycerol(GL)on the storage stability of the chitosan(CS)solution were investigated by studying the variation of the viscosity of CS dissolved in GL/water mixed solvent with storage temperature and storage time.The results showed that,at room temperature,GL could effectively improve the decreasing trend of storage stability of CS solution caused by heating.Compared with room temperature,the specific viscosity of CS solution with GL as stabilizer was almost unchanged within 6.5 h at 1℃.After standing for 99 h,the specific viscosity of the CS solution containing GL was decreased by only 3.8%,less than half of the specific viscosity decrease in aqueous solution at the same temperature.The addition of GL could effectively improve the storage stability of CS.When the storage temperature was 1℃,the CS solution had better storage stability in the presence of GL.
作者
陈思佳
易亚
张大伟
CHEN Si-jia;YI Ya;ZHANG Da-wei(Key Laboratory of Bio-based Material Science&Technology,Northeast Forestry University,Harbin,Heilongjiang 150040,China)
出处
《日用化学工业》
CAS
北大核心
2021年第4期306-311,共6页
China Surfactant Detergent & Cosmetics
基金
中央高校基本科研业务费专项资金项目(2572018BB10,2572017EB06)。
关键词
壳聚糖
丙三醇
黏度
储存温度
储存时间
chitosan
glycerol
viscosity
storage temperature
storage time
