食品科学 ›› 2006, Vol. 27 ›› Issue (10): 508-510.

• 分析检测 • 上一篇    下一篇

电子式时间-温度指示器监测牛乳货架期的实验研究

 谷雪莲,  刘宝林,  华泽钊,  王欣,  刘彦臣   

  1. 上海理工大学食品与生物技术研究所; 东北电力大学自动化学院
  • 出版日期:2006-10-15 发布日期:2011-11-16

Experimental Study on Shelf Life of Milk by Etti

 GU  Xue-Lian,   Liu-Bao-Lin,   Hua-Ze-Zhao,   Wang-Xin,   Liu-Yan-Chen   

  1. 1.Institute of Food and Biological Technology, Shanghai University of Science and Technology, Shanghai 200093, China;2.School of Automation Engineering, Northeast Dian Li University, Jilin 132012, China
  • Online:2006-10-15 Published:2011-11-16

摘要: 为了研究牛乳在冷藏链中保质问题,利用电子式时间-温度指示器(ElectronicTime-Temperatureindicator,ETTI)监测了不同温度-时间存放的牛乳剩余货架期变化,同时采用生物化学方法对牛乳的品质进行检测。研究结果显示,电子式时间-温度指示器不但可以准确地全程记录温度和货架期,并当牛乳剩余货架期少于1d时,准确地发出了声音报警,而且指示器的记录值与化学分析检测的测量值之间的最大差值小于等于0.5d,可满足实际应用需要。可见,用电子式时间-温度指示器基本能正确指示产品的剩余货架期,与通常的生产日期相比有极大的优点。

关键词: 时间-温度指示器, 货架期, 牛乳

Abstract: This work mainly aimed at investigating quality of milk in cold chain. The effects of different storage condition on quality of milk were investigated by electronic time-temperature indicator (ETTI) and biochemical methods. The device would predict the remaining shelf life and alarm when abnormal condition. The remaining shelf life of milk has gotten by the nonisothermal conditions, whose difference of results between measurement and biochemical analysis was less than 0.5 days. The ETTI would appropriately indicate the remaining shelf life(RSL). It was better than the product date and significant to improve the cold chain for food.

Key words: time-temperature indicator, shelf life, milk