PME,which is belong to saponifcational enzyme,can randomly hydrolyze the methyl ester bond of pectin.

• 果胶酯酶(PME)或称果胶甲基酯酶,它是果胶酶系的一种,能从果胶中脱去甲氧基,生成果胶酸,属于皂化酶。