Study on Viscosity Characteristics of Pullulan Solution

Abstract

Abstract: The effects of temperature,pH,denaturant(urea)and metal ions on the viscosity of pullulan solution were studied.The viscosity of pullulan solution went up from 10℃ to 20℃,but was kept constant between 20℃ and 70℃.The pH of thesolution showed little effect on the viscosity and denaturant results in increase of the viscosity of pullulan solution slightly.However,metal ions could increase the viscosoity of pullulan solution obviously,among which the effect of Mg2+ was thegreatest and Na+ the least.The enhancement of the viscosity of pullulan solution was proved to be the result of the incrementof molecular weight.

Key words: pullulan, viscosity, effect factor

TENG Li-Rong, HONG Shui-Sheng, MENG Qing-Fan, CHEN Jia, WANG Ya-Jun, WU Min, LIU Lan-Ying. Study on Viscosity Characteristics of Pullulan Solution[J]. FOOD SCIENCE, 2003, 24(10): 32-35.

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Study on Viscosity Characteristics of Pullulan Solution

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