In order to reduce the amount of chemical reagents used and reduce the pollution of degumming wastewater,a new short-process degumming process of"biological enzyme-one bath alkali oxygen treating weak peroxide bleaching"is designed and explored,with residual glue rate as the evaluation index.The optimal process is determined as follows:biological enzyme degumming at 55 ℃ for 4 h with pectinase concentration of 6 g/L,xylanase concentration of 3 g/L,and pH value of 4.5;The one bath alkali oxygen treating at 95 ℃ for 3 h with alkali concentration of 8.5％and hydrogen peroxide concentration of 5％;The weak peroxide bleaching at 95 ℃ for 1 h with hydrogen peroxide concentration of 2％.Compared with the chemical degumming method,the optimal sample of biological enzyme-oxidative degumming has comparable content of each colloidal component,better impurity rate,length and short pile rate,and lower COD and chromaticity of degumming waste liquid
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