食品科学 ›› 2012, Vol. 33 ›› Issue (8): 308-312.doi: 10.7506/spkx1002-6630-201208067

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ε- 聚赖氨酸、壳聚糖及植酸对南美白对虾的保鲜作用

侯伟峰,谢 晶*   

  1. 上海海洋大学食品学院,上海水产品加工及贮藏工程技术研究中心
  • 出版日期:2012-04-25 发布日期:2012-03-31
  • 基金资助:
    “十二五”国家科技支撑计划项目(2011BAD24B02);上海市科委工程中心建设项目(11DZ2280300); 上海市教委重点学科资助项目(T1102)

Preservation Effects of ε-Polylysine, Chitosan and Phytic Acid on Penaeus vannamei

HOU Wei-feng,XIE Jing*   

  1. (Shanghai Aquatic Products Processing and Storage EngineeringTechnology Research Center, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China)
  • Online:2012-04-25 Published:2012-03-31

摘要: 为延长南美白对虾的货架期,选取ε-聚赖氨酸、壳聚糖及植酸对南美白对虾进行处理,并对各组虾体感官、pH值、挥发性盐基氮、菌落总数和三甲胺指标的测定。结果表明:在(4±1)℃的贮藏环境下,与不添加保鲜剂组相比,ε-聚赖氨酸、壳聚糖及植酸平均能明显延长南美白对虾货架期2~4d。质量分数0.08%的植酸溶液能够较好地保持虾体的感官品质,而ε-聚赖氨酸在减缓虾体菌落总数和三甲胺含量方面具有较好的效果。

关键词: 南美白对虾, 生物保鲜剂, 保鲜, 货架期

Abstract: In order to understand their preservation effects of Penaeus vannamei, sensory characteristics, pH, total volatile basic nitrogen (TVB-N), total bacteria count (TBC) and trimethylamine (TMA) were measured on Penaeus vannamei treated with ε-polylysine, chitosan or phytic acid during cold storage at (4 ± 1) ℃. The results showed that the shelf life of Penaeus vannamei was prolonged averagely by 2-4 d due to treatment withε-polylysine, chitosan or phytic acid compared with control samples. The sensory quality could be maintained well due to treatment with 0.08% phytic acid solution. However, ε-polylysine was more effective in reducing the TBC and TMA of Penaeus vannamei.

Key words: Penaeus vannamei, natural preservative, preservation, shelf-life

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