Synergistic Effect and Decontamination Performance of Saponin from Gleditsia Sinensis Compounded with Sodium Cocoyl Glutamate
In order to investigate the synergistic effect and decontamination performance of the complex system composed of purified saponin and sodium cocoyl glutamate(SCG),the saponin-SCG complex systems with different molar fractions(α)of saponin were configured and the surface tension,oil-water interfacial tension,foaming performance,and emulsification performance of the complex systems were investigated.The results showed that the surface tension of the saponin-SCG complex system prepared when α=1％was 4.09％lower than that of SCG,and 39.29％lower than that of saponin.The critical micelle concentration(CMC)value of the gleditsia saponin-SCG system decreased with the increase of gleditsia saponin α,which indicated that the system had synergistic effects at this time.The oil-water interfacial tension decreased first and then increased with the increase of α.The minimum oil-water two-phase interfacial tension of the system prepared at α=7％decreased and then increased.The oil-water interfacial tension of the saponin-SCG system prepared at α=7％was 5.56 mN/m,which was 64.81％lower than that of SCG.The foam volume of the saponin-SCG system prepared at α=7％was 53.45％higher than that of SCG,and the stability of the foam was 9.78％higher than that of SCG.Foam distribution was more uniform,and the foam was delicate,indicating that the foam stability of the saponin-SCG compound system was excellent.When the saponin α≥7％,after the prepared emulsion by the compound system and soybean oil was placed for 24 h,the emulsion was almost no precipitation of the oil phase,and the emulsion stability of the compound system was significantly improved.The effect of the saponin-SCG system(α=7％)on the washing of stained cotton cloth impregnated with ink and edible oil was investigated under different washing parameters,such as temperature,spinning speed,water hardness,surfactant concentration,etc.The experimental results showed that the whiteness of the stained cotton cloth increased after washing with the increase of temperature and rotation speed when the stained cotton white cloth was washed with the compound system.When the hardness of the washing water increased,the whiteness of the cotton cloth decreased.At 50 ℃,under the conditions of rotation speed of 500 r/min,0 g/L of hard water,and 3 mmol/L of saponin SCG addition(α=7％),the washing effect was the best with the whiteness value of 98％.
万方数据
维普
