Methods The collagen protein from cod skin was extracted by pepsin methods primarily.

• 方法采用以酶法为主、热水浸提和酸法浸提为辅的方法提取鳕鱼皮胶原蛋白,对在胃蛋白酶添加量和料液比两参数不同的情况下提取的胶原蛋白得率进行统计,并对所提胶原蛋白进行了成分分析。