Preliminary study on compound enzymes degumming of cotton stalk bast fibers

In order to avoid the serious environmental pollution and fiber damage from chemical degumming,compound enzymes degumming of cotton stalk bast fibers was studied.Pectinase and hemicellulase were used to degum the cotton stalk bast fibers and ternary quadratic orthogonal regression experiment was made to optimize the conditions of the compound enzyme treatment.The result shows that when the concentration of compound enzymes is 1.98%,degumming time is 15h and temperature is 54℃,the residual gum content can be controlled at about 6%.Fiber performance of the cotton stalk bast fibers was tested,of which fineness was 3.46tex,breaking strength was 50.8cN/tex,principal length was about 70～130mm.The fibers could be further processed and utilized as textile fiber.