Immobilization of Formaldehyde Residue in Yellow Croaker on Reticular Chitosan

With Chitosan as a carrier,a method for immobilizing formaldehyde residue in yellow croaker was developed.Effects of several key factors,including glutaraldehyde concentration,the amount of FA-HSA,adsorption temperature and so on,on immobilization were investigated taking the adsorption rate of FA-HSA as the indicators.Through single factor experiments and orthogonal test,the best condition of formaldehyde immobilization on chitosan were determined as: glutaraldehyde concentration 5%,the amount of FA-HSA 14mL,adsorption temperature 42 ℃ and the adsorption time 4 h.Under the optimum immobilization conditions,the adsorption rate of FA-HSA reached the highest rate of 59.2%.