Method Acellular porcine aorta valve was degaradated with collagenasel and elastase.The weight loss, value of protein and hydroxyproline was observed at different time.

• 方法应用胶原酶、弹性蛋白酶体外降解猪主动脉瓣膜去细胞基质,于不同时段观察降解失重率、降解液外观、蛋白及羟脯氨酸含量。