保鲜剂及真空包装对南极磷虾冷藏保鲜效果研究

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

摘要: 通过黑变抑制组分复配的正交实验,得到南极磷虾黑变抑制剂组分为0.01%4-己基间苯二酚+0.8%维生素C+0.1%柠檬酸;比较不同浓度的山梨酸钾、壳聚糖、乳酸链球菌素对南极磷虾的抑菌效果,浓度为0.5%的壳聚糖对南极磷虾的抑菌效果最好。将0.01%4-己基间苯二酚+0.8%维生素C+0.1%柠檬酸+0.5%壳聚糖作为南极磷虾复合保鲜剂,以添加保鲜剂、真空包装作为保鲜方式,通过比较南极磷虾在4℃冷藏过程中感官评分、pH、菌落总数以及挥发性盐基氮的变化,表明添加保鲜剂和真空包装都具有良好的保鲜效果。

Abstract: 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.