Research of chilling storage of Antarctic krill (Euphausia superba) with additives and vacuum package

According to the results of orthogonal experiment L9 (34) , a complex anti-melanosis additives was developed. The optimum composition of 4-Hexyl-1, 3- benzenediol (4-HR) 0.01%, vitamin C 0.8%, 0.1% citric acid was determined. 0.5% chitosan was chosen as the best bacteriostatic agent among different bacteriostatic agents (potassium sorbate, chitosan, nisin) for its best antibacterial effect. So 4-HR 0.01% , vitamin C 0.8%, 0.1% citric acid , 0.5% chitosan was determined as the preservative of Antarctic krill (Euphausia superba) .Changes of sensory evaluation scores, pH, total bacteria count, total volatile base nitrogen of Antarctic krill during storage at 4℃ temperature, the great effect of Antarctic krill added preservatives and vacuuming package were verified.