Patent ID: 8268127

Claim:
A method of degumming jute fibres with complex enzyme, wherein said complex enzyme comprises pectinase and laccase, comprising the steps of: Preprocessing jute fibers by exposure of the fibers to a water bath at a temperature of 100 degrees C. for one-half hour; soaking the jute fibres in a water solution of said complex enzyme made from pectinase and laccase, where the weight proportion of pectinase and laccase is 5:1 and the weight proportion of the complex enzyme and jute fibers is 3:100, and the weight proportion of said complex enzyme water solution to jute fibres is 12:1; adjusting pH value of said complex enzyme water solution to 5.1, and adjusting the temperature of said complex enzyme water solution to 60° Centigrade, then keeping said complex enzyme water solution with such temperature for 60 minutes; adjusting the pH value of said complex enzyme water solution to more than 8.0, but not more than 9.5, and adjusting the temperature of said complex enzyme water solution to 40° C.-70° C.; then, keeping said complex enzyme water solution at such temperature for 20-120 minutes; removing the jute fibers from the complex enzyme water solution and storing the jute fibers for twenty hours; and conducting enzyme deactivation of the jute fibres processed with said complex enzyme by washing the jute fibers with with an aqueous solution having a pH of 11.0. obtaining degummed jute fibers.