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Position: Home > Articles > Rheological study on polysaccharide from codonopisis pilosula Journal of Gansu Agricultural University 2015 (5) 141-144+149

纹党多糖的流变性研究

作  者:
叶文斌;何九军;樊亮
单  位:
陇南师范高等专科学校农林技术学院
关键词:
纹党;多糖;流变性;粘度;协效性
摘  要:
利用酶法提取纹党多糖,通过测定浓度、切变速度、温度和pH值等对提取的纹党多糖溶液粘度的影响,探讨纹党多糖的流变学性质及其与其他多糖的协效增稠性.结果显示:纹党多糖溶液体积分数≤1%时为"牛顿流体",操作温度70℃为宜;该多糖溶液具有良好的耐热稳定性、酸碱稳定性、耐盐稳定性及较强的抗降解性能,冷冻和冷藏处理的多糖溶液粘度均有所升高;纹党多糖与黄原胶有良好的协效增稠性,二者的最佳配比为7∶3.
译  名:
Rheological study on polysaccharide from codonopisis pilosula
作  者:
YE Wen-bin;HE Jiu-jun;FAN Liang;School of Agriculture and Forestry Technology,Longnan Teachers College;
关键词:
Codonopisis pilosula;;polysaccharide;;rheological property;;viscosity;;synergy
摘  要:
In the study,the polysaccharide fromCodonopisis pilosula was extracted by using enzymolysis,and the rheological properties of polysaccharide were researched through studying the effects of different factors such as concentration,shearing rate,heating temperature and pH value on the polysaccharide.The results showed that the polysaccharide was‘Newton-fluid'when the concentration of the solution was less than or equal to 1%,and the optimum temperature for heating polysaccharide solution was 75 ℃.The viscosity was stable in acid and alkali solutions,the polysaccharide solution had good thermal stability and salt tolerance stability and resistance to degradation.The viscosity increased with the freeze-thawing treatment.Nacl had a certain effect on the viscosity of solution,and the polysaccharides from C.pilosula had strong synergistic effect with xanthan gum,as the optimum ratio of these two was 7∶3.

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