Recently, the exploitation and utilization of eggshell membrane keratin has aroused wide interest. Eggshell membrane contains about thirty percent of keratin, is easy to obtain, and is an abundant raw material for keratin production and application. In this paper, the author uses the sodium hydroxide alkali method, hydrogen peroxide oxidation method, and alkali protease method to extract keratin from eggshell membrane. By comparing the three methods' reaction rate and keratin products' extraction rate, formula weight, and structure integrity, study the influence of three extraction methods on ...