食品科学 ›› 2007, Vol. 28 ›› Issue (8): 487-491.

• 包装贮运 • 上一篇    下一篇

应用Weibull Hazard Analysis方法预测食品货架寿命

 曹平, 于燕波, 李培荣   

  1. 中国航天员科研训练中心; 中国航天员科研训练中心 北京100094; 北京100094;
  • 出版日期:2007-08-15 发布日期:2011-10-24

Application of Weibull Hazard Analysis for Forecast of Food Shelf-life

 CAO  Ping, YU  Yan-Bo, LI  Pei-Rong   

  1. China Astronaut Research and Training Center, Beijing 100094, China
  • Online:2007-08-15 Published:2011-10-24

摘要: 本实验以市售灭菌乳为研究对象,应用Weibull模型通过对食品非感官指标的分析,预测食品的货架期。灭菌乳分别在25、30、35、40℃环境下恒温储藏,并定期随机抽样进行感官检验和测定酸度、细菌总数。应用Weibull Hazard Analysis(WHA)方法分析非感官实验数据来预测样品货架期,并与采用寿命加速方法ASLT和文献WHA方法得到的预测结果进行了比较。

关键词: 灭菌乳, 货架期, 威布尔分布

Abstract: This paper applied accelerated shelf-life test (ASLT) and sensory hazard analysis to the determination of shelf-life, with UHT(ultra heat treated) milk as experimental object. Moreover it discussed the feasibility of applying physicochemical Weibull hazard analysis to the determination of shelf-life as well as the reliability analysis of commercial shelf-life. UHT milk, with commercial shelf-life of 45 days, was divided into four experimental groups, and stored at 25 ℃, 30 ℃, 35 ℃ and 40 ℃ respectively. The sensory, physicochemical and bacterial testing was carried out at stated intervals.

Key words: UHT milk, shelf-life, Weibull distribution