Influence of different salts on solubility of sericin on raw silk filaments

This paper investigated the effects of different salts with various concentrations on the solubility of sericin on raw silk filaments.The mass concentration of sericin protein was tested with Coomassie Breiliant Blue G-250,and the results showed that when sodium chloride,sodium sulfate,magnesium chloride,and sodium nitrite were used to dissolve sericin,increasing their concentration increased the solubility firstly and then inhibited the solubility.The maximum solubility of sericin occurred when mass fraction of sodium chloride,sodium sulfate,magnesium chloride,sodium nitrite were 0.8%,1.5%,2.0%,and 2% to 7% respectively.However,the case with calcium chloride was different.Solubility of sericin increased continuously with the increasing of its concentration.It can be seen from this that influence of different salts on the solubility of sericin on raw silk filaments was different.