Extraction of Pectin from Pineapple Peel Promoted by Cellulase

In order to promote the extraction of pectin from pineapple peel,the acid hyclrolyzed suspending solution of pineapple peel was treated with cellulose,and the conditions of enzymatic hydrolysis process were screened.The results indicated that the optimal conditions were as follows: enzymatic hydrolysis temperature was 55℃;enzymatic hydrolysis pH volume was pH 4.2;appending quantity of cellulose was 15.5 U·mL-1;and enzymatic hydrolysis time was 140 min,and under these conditions,the concentration of pectin in the enzymatic hyclrolyzed solution reached 7.4 g·L-1,which was 40.7% higher than that of the acid hyclrolyzed solution.