羧甲基纤维素与魔芋葡苷聚糖复配溶胶研究

Study on the property of carboxmethyl cellulose-konjac glucomannan mixed sol

摘要: 通过单因素和L9(34)正交实验研究了羧甲基纤维素(CMC)与魔芋葡苷聚糖(KGM)的复配比例、搅拌时间、温度、p H及放置时间等因素对CMC/KGM复配溶胶粘度的影响。结果表明:CMC与KGM复配具有协同增稠效应;随着放置时间的延长,CMC与KGM复配溶胶粘度的稳定性优于单体KGM溶胶;CMC与KGM复配溶胶的最佳制备条件:CMC与KGM的质量比为2∶8(复配溶胶的总浓度为10g/L),搅拌时间为4h,温度为30℃,p H为7,其粘度值为38063m Pa·s。

Abstract: The effect of weight ratio, stirring time, temperature, p H, and deposited time on its viscosity property of CMC-KGM sol were investigated systematically through single factor and L9 (34) orthogonal tests. The results indicated there was a synergistic thickening effect between CMC and KGM. An excellent stability regarding the viscosity of the CMC-KGM sol was found with the extension of deposited time, comparing with KGM sol. The optimal conditions for the preparation of CMC-KGM sol were as follows :the mass ratio of CMC to KGM was2∶8 (the initial concentration of CMC-KGM sol was 10g/L) , stirring time 4h, temperature 30℃ and p H at 7, respectively. Besides, ultimately, it was up to the viscosity of 38063 m Pa·s with respect to synthetic system.