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China Surfactant Detergent & Cosmetics ›› 2021, Vol. 51 ›› Issue (4): 306-311.doi: 10.3969/j.issn.1001-1803.2021.04.007

• Development and application • Previous Articles     Next Articles

Effects of glycerol on the storage stability of the chitosan solution

CHEN Si-jia(),YI Ya,ZHANG Da-wei()   

  1. Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Harbin, Heilongjiang 150040, China
  • Received:2021-02-05 Revised:2021-03-23 Online:2021-04-22 Published:2021-04-27
  • Contact: Da-wei ZHANG E-mail:ciga0623@163.com;zhangdawei@nefu.edu.cn

Abstract:

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.

Key words: chitosan, glycerol, viscosity, storage temperature, storage time

CLC Number: 

  • TQ658