纹党多糖添加食品添加剂的流变性研究

Rheological Study on Polysaccharide from Codonopisis Pilosula

利用酶法和响应面法联用提取纹党多糖,通过测定添加木糖醇、氯化钠、苯甲酸钠和抗坏血酸钠等因素对多糖溶液粘度的影响,对纹党多糖的流变学性质及其与其他多糖的协效增稠性进行了研究。结果显示,纹党多糖溶液具有良好的耐盐稳定性及较强的抗降解性能;纹党多糖与黄原羧甲基纤维素钠胶有良好的协效增稠性,二者的最佳配比为7∶3。

In the thesis, the polysaccharide from Codonopisis pilosula was extracted by using enzymolysis and response surface methodology, and then the rheological properties of polysaccharide were researched through studying the effects of add the different factors such as xylitol, NaCl, sodium benzoate and ascorbic acid sodium on the polysaccharide. The results showed that, polysaccharide from Codonopisis pilosula. The viscosity was stable in acid and alkali solutions, the polysaccharide solution had good thermal stability and stability of salt tolerance and resistance to degradation, and the polysaccharides from Codonopisis pilosula had strong synergistic effect with Sodium carboxymethyl cellulose, as the best ratio of these two was 7：3.