Biological enzyme applied to extraction of mulberry fiber

Bio-degumming of mulberry fiber was performed with bioenzyme KDN-T01F,and the factors affecting degumming were investigated,using the amount of residual gum as the index of the result of degumming.Single-factor analysis was adopted to find out the parameters range during degumming,and then orthogonal experiment was used to determine the optimal parameters for bio-degumming,that is,the temperature is 53 ℃,the concentration of bioenzyme solution is 14 g /L,pH = 9,liquor ratio is 1∶ 30 and treating time is 12 h.Under these conditions,the amount of residual gum reduced from 68.04% to 30.36%.After bio-degumming followed by chemical degumming,the amount of residual gum is as low as 3.88%.This indicates that bioenzyme-chemical degumming method is good for extraction of mulberry fiber.