食品科学 ›› 2013, Vol. 34 ›› Issue (4): 226-229.

• 包装贮运 • 上一篇    下一篇

不同真空预冷终温对豆腐块品质的影响

施冰心1,刘宝林2   

  1. 1. 上海理工大学
    2. 上海理工大学食品质量与安全研究所
  • 收稿日期:2011-11-19 修回日期:2013-01-13 出版日期:2013-02-25 发布日期:2013-01-29
  • 通讯作者: 刘宝林 E-mail:blliuk@163.com
  • 基金资助:

    国家863计划项目; 教育部新世纪优秀人才计划;上海市重点学科建设项目

Effect of final vacuum cooling temperature on the properties of Tofu

Bing-Xing SHI 2   

  • Received:2011-11-19 Revised:2013-01-13 Online:2013-02-25 Published:2013-01-29

摘要:

研究了不同终温(4℃、6℃、8℃)时真空预冷对豆腐降温速率、失水率、及其在4℃环境下一周内的蛋白质、持水性、pH值、硬度和色泽等指标的影响。结果表明:终温变化对降温速率和失重率无显著的影响,然而,对豆腐的品质(蛋白质、持水性、pH值、硬度及色泽)影响显著。综合比较得知,在压力500Pa下预冷终温为4℃的样品品质最优,当贮藏温度为4℃时保质期可达到5天。

Abstract:

The effect of final temperature(4℃、6℃、8℃) on the vacuum cooling performances of tofu was studied, including the cooling rate, weight loss and typical property changes (protein, water binding capacity, pH value, hardness, colour and luster) during the storage period of a week at 4℃. The results indicat that effects of final temperature on cooling rate and weight loss were not significant. However, the different final temperature(4℃、6℃、8℃) on the vacuum cooling performances for the quality of tofu(protein, water binding capacity, pH value, hardness, colour and luster) had significant influence. The conclusion was drawn that 4℃ is considered as the best final temperature for tofu ,which can be stored with 4℃ for five days without significant quality change.

中图分类号: