Wu Chwen-herng, chief of the Seafood Technology Division of the FRI, notes that fish scales are made up of more than 50 % collagen, and the collagen extracted from them is more than 95 % pure. It is a higher level of purity than found in the collagen extracted from cow skin, pig skin and rooster combs.
水試所水產加工組組長吳純衡說，魚鱗富含膠原蛋白，含量高達 50％以上，經萃取後，魚鱗膠原蛋白的純度更高達 95％以上，比牛皮、豬皮、雞冠中萃取的純度還高。