食品科学 ›› 2018, Vol. 39 ›› Issue (13): 266-271.doi: 10.7506/spkx1002-6630-201813040

• 包装贮运 • 上一篇    下一篇

不同二氧化碳比例气调对冷鲜鸡肉中荧光假单胞菌的抑制作用

张新笑1,章 彬1,2,卞 欢1,王道营1,吴满刚2,孙芝兰1,*,诸永志1,*,徐为民1,3   

  1. 1.江苏省农业科学院农产品加工研究所,江苏 南京 210014;2.扬州大学食品科学与工程学院,江苏 扬州 225127;3.江苏省肉类生产与加工质量安全控制协同创新中心,江苏 南京 210095
  • 出版日期:2018-07-15 发布日期:2018-07-09
  • 基金资助:
    江苏省产学研合作项目(BY2015073);现在农业产业技术体系专项(CARS-41)

Inhibitory Effect of Modified Atmosphere Packaging with Different Carbon Dioxide Concentrations on Pseudomonas fluorescens in Chilled Chicken

ZHANG Xinxiao1, ZHANG Bin1,2, BIAN Huan1, WANG Daoying1, WU Mangang2, SUN Zhilan1,*, ZHU Yongzhi1,*, XU Weimin1,3   

  1. 1. Institute of Agricultural Products Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; 2. College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China; 3. Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing 210095, China
  • Online:2018-07-15 Published:2018-07-09

摘要: 为研究不同体积分数二氧化碳气调包装对冷鲜鸡保鲜效果的影响,以辐照灭菌后接种荧光假单胞菌为 103 CFU/g左右的冷鲜鸡胸肉为原料,设置各组气调比例:M1组(V(CO2)∶V(N2)=0∶100)、M2组(V(CO2)∶ V(N2)=20∶80)、M3组(V(CO2)∶V(N2)=40∶60)、M4组(V(CO2)∶V(N2)=60∶40),以托盘包装作 为对照,在(4±1)℃贮藏条件下测定气调包装盒的凹陷程度、荧光假单胞菌总数、pH值、挥发性盐基氮和腐胺 含量的变化。结果表明:荧光假单胞菌总数、挥发性盐基氮和腐胺含量随着贮藏时间延长而上升,随二氧化碳体积 分数的升高而下降;凹陷程度随着贮藏时间的延长及二氧化碳体积分数的升高而升高,即M4组气调包装盒的凹陷 程度显著高于其他3 组(P<0.05),影响产品的外观。M2组的气调包装盒的凹陷程度和腐胺含量与M3组无显著性 差异(P>0.05),在贮藏9~12 d之间,挥发性盐基氮含量也与M3组无显著差异(P>0.05),能达到同样的保鲜 效果。此外,同体积的二氧化碳的成本高于氮气。整体来看,在(4±1)℃贮藏条件下,20%~40%体积分数的二 氧化碳气调包装能抑制冷鲜鸡胸肉中荧光假单胞菌的生长繁殖。

关键词: 冷鲜鸡, 气调包装, 二氧化碳, 货架期, 荧光假单胞菌

Abstract: In order to investigate the effect of modified atmospheres with varying carbon dioxide levels on the preservation of chilled chicken, chilled chicken was inoculated with 103 CFU/g Pseudomonas fluorescent after sterilization by irradiation, packaged in different modified atmospheres: M1 group ((V(CO2):V(N2) = 20:80), M2 group ((V(CO2):V(N2) = 20:80), M3 group ((V(CO2):V(N2) = 40:60) and M4 group ((V(CO2):V(N2) = 60:40) and then stored at (4 ± 1) ℃. Normal air package was used as control. Changes in the degree of concavity, P. fluorescent count, pH, total volatile basic nitrogen (TVB-N) and putrescine content were measured during storage. Results showed that P. fluorescent count, TVB-N and putrescine content increased with increasing storage time, whereas they decreased with increasing CO2 level. The degree of concavity increased with increasing storage time or CO2 level; the degree of concavity in group M4 was significantly higher than that in other groups (P < 0.05), impacting the visual appearance of chicken. No difference in the degree of concavity or putrescine content was observed comparing groups M2 and M3 (P > 0.05). Similarly, no difference in TVB-N content was found from the ninth day to the twelfth day of storage (P > 0.05). Thus, an identical preservation effect was achieved. However, CO2 is more expensive than N2 of the same volume. Overall, we concluded that modified atmospheres containing 20%–40% of CO2 could strongly inhibit the growth of P. fluorescent in chilled chicken under the storage of (4 ± 1) ℃.

Key words: chilled chicken, modified atmosphere packaging, carbon dioxide, shelf-life, Pseudomonas fluorescent

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