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Carboxymethylation of Cassia tora gum

机译:决明子胶的羧甲基化

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The preparation of carboxymethyl (CM)Cassia tora gum (CTG) with monochloroacetic acid and sodium hydroxide was investigated under different reaction conditions. The carboxymethylation reaction was studied with respect to the degree of substitution of CM-CTG. The variables studied were the concentration of reactants, methanol-water ratio (solvent), reaction time, and reaction temperature. Carboxymethylation of CTG increased its solubility in cold water and the stability of its paste to microorganisms. Regardless of the degree of substitution of these products, their aqueous solutions were characterized by non-Newtonian pseudoplastic behavior. (C) 2003 Wiley Periodicals, Inc. [References: 18]
机译:研究了在不同反应条件下,用一氯乙酸和氢氧化钠制备羧甲基(CM)决明胶(CTG)的方法。关于CM-CTG的取代度,研究了羧甲基化反应。研究的变量是反应物浓度,甲醇与水的比例(溶剂),反应时间和反应温度。 CTG的羧甲基化增加了其在冷水中的溶解度以及其糊剂对微生物的稳定性。无论这些产物的取代程度如何,其水溶液的特征都是非牛顿假塑性行为。 (C)2003 Wiley Periodicals,Inc. [参考:18]

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