RESEARCH ON THE RECOVERY OF PROTEIN FROM SURIMI WASH WATER OF HAIRTAIL TRICHIURUS HAUMELA BY NATURAL ALGAE FLOCCULANT SODIUM ALGINATE
天然海藻絮凝剂海藻酸钠回收带鱼(Trichiurus haumela)鱼糜漂洗液中蛋白质的研究

To obtain the optimum conditions of sodium alginate flocculants used for the recovery of protein from surimi wash water of hairtail Trichiurus haumela,the methods of sodium alginate flocculants,biuret and potassium dichromate oxidation were adopted.Results showed that the optimum recovery conditions of sodium alginate were as follows:sodium alginate 1.11mg/ml;protein concentration of surimi wash water 16.54mg/ml;pH 4.6;temperature 4℃;time 20min.Under the above condition,protein recovery ratio and removal ratio of COD was 86.68% and 58.67%,respectively.The removal effect of protein from surimi wash water was obvious by adding sodium alginate.