食品科学 ›› 2007, Vol. 28 ›› Issue (9): 564-567.

• 包装贮运 • 上一篇    下一篇

高氧气调包装鲜切洋葱的研究

 吴绪敏, 周颖越, 欧阳杰   

  1. 上海水产大学食品学院; 上海水产大学食品学院 上海200090; 上海200090;
  • 出版日期:2007-09-15 发布日期:2011-11-22

Study on High Oxygen Modified Atmosphere Packaging of Fresh-cut Onion

 WU  Xu-Min, ZHOU  Ying-Yue, 欧Yang-Jie   

  1. College of Food Science and Technology,Shanghai Fisheries University,Shanghai 200090,China
  • Online:2007-09-15 Published:2011-11-22

摘要: 本研究对比三种气体比例包装(空气包装、5%O2+10%CO2+85%N2、80%O2+20%CO2)并结合使用三种不同浓度(0.5%、1%、1.5%)的柠檬酸溶液浸泡处理鲜切洋葱研究贮藏期间对品质和安全性的影响。通过测定其贮藏期间的硬度、多酚氧化酶活性、细菌总数等的变化来比较保鲜的效果。结果表明:(80%O2+20%N2)气调包装并采用1.5%柠檬酸溶液浸泡处理,对鲜切洋葱的保鲜效果较好,在4℃下贮藏17d仍能保持较好的品质。

关键词: 洋葱, 高氧气调包装, PPO, 硬度, 细菌总数

Abstract: Three kinds of atmosphere packaging(directly packaging,5% O2+10% CO2+85% N2 and 80% O2+20% N2)combined with three different densities of citric acid(0.5%,1% and 1.5%)were used to study the effect of the fresh-cut onion quality and safety during storage.The firmness,PPO activity and total bacteria count were determined during storage to evaluate the effect of different storage/processing methods.The results indicated that the package of 80% O2+20% N2 combined with 1.5% citric acid has the best effect.It can keep a good quality after 17 days storage under 4 ℃.

Key words: onion, high oxygen atmosphere packaging, PPO, firmness, total bacteria count (TBC), quality