The autolytic hydrolyzing technology for Euphausia superba
Carried out on the autolytic hydrolyzing technology of Euphausia superba based on the single factors and orthogonal study.The results of amino acid nitrogen content and degree of hydrolysis solution showed that the most important factor was autolytic hydrolyzing time and pH value was the second.The influence of autolytic hydrolyzing temperature and Ca 2+ concentration were relatively weak and the function of UV radiation for activate the autolytic hydrolyzing enzymes was lest.The optimum hydrolytic factors were then optimized as hydrolysis time of 180 min,temperature of 50 ℃,pH value of 7.0,the time for UV radiation of 20 min and Ca 2+ concentration of 0.28 mol/L.The maximal amino acid nitrogen concentration and the maximal degree of hydrolysis solution at optimized autolytic hydrolyzing condition were 0.875 g/L and 36.18% respectively.