It shows that hide collagens absorb selectively the tannins, there are mainly physical absorption and hydrogen bond between Abies tannins and hide collagens, and also exist covalent bond between them.

• 结果表明,皮蛋白对冷杉单宁的吸收具有选择性,冷杉单宁与皮蛋白间主要存在物理吸附和氢键作用,也存在更强的键合作用。