Research on Decolorization Process of Gleditsia Saponin and Its Application in Dishwashing Detergent
The decolorization of the gleditsia saponin extract was carried out by physical adsorption,chemical adsorption and oxidative decolorization,and different decolorization conditions were studied.The results showed that the oxidative decolorization was more effective compared to physical and chemical adsorption.The optimal decolorization conditions for oxidative decolorization were:temperature of 70℃,pH approximately 10.5,hydrogen peroxide dosage at 40%of the extraction liquid's mass,decolorization time of 2.5 hours.The decolorization effect was most favorable when hydrogen peroxide was added in three portions,achieving a decolorization rate of over 85%.Het-Cam test was used to evaluate the decolorized extract,and the results showed that 2%concentration of gleditsia sinensis extract had no irritation to eyes.Furthermore,a dishwashing detergent was prepared from gleditsia sinensis extract as the raw material.The properties of the dishwashing detergent were measured,and the results showed that the dishwashing detergent fully met the national standards and had good foaming and cleaning ability.The prepared dishwashing detergent was transparent and stable,and had a broad market prospect.
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