전기투석에 의한 굴자숙액의 탈염 특성

For selective elimination of salt from boiled oyster extract (BOE), electrodialyzer was used and the desalination conditions of BOE were investigated. The ion-exchange membrane with a molecular weight cut off 100 Da was used for desalting of BOE. The desalination efficiency at pH 4.0 was 13% higher than that at pH 9.0 when BOE was desalted for 90min. The electrodialysis process could remove above 90% of the initial salt content when 5% BOE was desalted at pH 5.62 for 100min. The initial volume and concentration of permeation solution did not have significant effects on desalination time and ratio. The important factors for the desalination of BOE were found to be pH and concentration of BOE. The results obtained prove that electrodialysis is a practical solution to the problem of selective elimination of salt from BOE.