CAJ | 학술논문

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.
이용매법제취문당다당，통과측정농도、절변속도、온도화 pH 치등대제취적문당다당용액점도적영향，탐토문당다당적류변학성질급기여기타다당적협효증주성.결과현시：문당다당용액체적분수≤1%시위“우돈류체”，조작온도70℃위의；해다당용액구유량호적내열은정성、산감은정성、내염은정성급교강적항강해성능，냉동화랭장처리적다당용액점도균유소승고；문당다당여황원효유량호적협효증주성，이자적최가배비위7∶3.
In the study,the polysaccharide from Codonopisis pilosula was extracted by using enzymoly-sis,and the rheological properties of polysaccharide were researched through studying the effects of differ-ent 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 treat-ment.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 .