无患子皂苷及复配体系表面活性的研究

Researches on the surface activities of Sapindus saponin product and its mixed system

摘要:

本文系统研究了无患子皂苷水提液及其发酵液以及与其他表面活性剂复配体系的表面活性。结果显示，经发酵纯化后的无患子皂苷的高温稳定性、临界胶束质量浓度（cmc）、临界胶束质量浓度时的表面张力（γcmc）、泡沫性能及乳化力都有不同程度的改善；根据Rosen理论推算出无患子皂苷发酵液与脂肪醇聚氧乙烯醚硫酸钠（AES）、十八烷基三甲基氯化铵（1831）、烷基聚葡萄糖苷（APG）、脂肪醇聚氧乙烯醚（平平加）进行二元复配的最佳配比。γcmc、cmc及泡沫试验测试结果表明无患子皂苷发酵液与这四种表面活性剂组成的二元复配体系都有不同程度的协同增效效应；乳化力测试结果显示无患子皂苷与APG复配对棕榈油和液体石蜡都有较大的协同增效作用，但其他三种复配体系仅对棕榈油有协同增效作用，对液体石蜡无协同增效作用。

Abstract:

In this paper, the surfactivities of the water extraction of the Sapindus saponin from the pericarp of Sapindus mukorossi, its fermentation product, and the mixture of the fermentation product and other four surfactants were studied. Our results showed that, compared with the water extract, the stability at high temperature, lower critical micelle concentration(cmc) and surface tension(γcmc), foaming and emulsifying capability of the fermentation product were impoved in some degree. Based on Rosen theory, the binary mixture systems contained the fermentation product of Sapindus saponin and one of the follwing surfactants, Sodium alcohol ether sulphate(AES), Octadearyl dimethyl ammonium chloride(1831), Alkyl polyglycoside(APG), or Pepega, were constructured, and then their surfactivities were determined. According to the cmc, γcmc and foaming ability tests, they showed synergistic effects in different degree.In emulsifying ability test, a remarkable synergistic effect exsited in the mixture of the fermentation product/APG both on palm oil and liquid paraffin, while there were synergistic effects only on palm oil in the other three mixtures, not on liquid paraffin.