食品科学 ›› 2007, Vol. 28 ›› Issue (1): 330-332.

• 包装贮运 • 上一篇    下一篇

生姜在不同低温条件下的冻结规律及品质变化

 邓洁红, 谭兴和, 潘小红, 李清明, 秦丹, 张喻, 王锋   

  1. 湖南农业大学食品科技学院; 湖南农业大学食品科技学院 湖南长沙410128; 湖南长沙410128;
  • 出版日期:2007-01-15 发布日期:2011-12-31

Study on Freezing Property and Characteristic Quality Changes of Ginger under Different Freezing-temperatures

DENG  Jie-Hong, TAN  Xing-He, PAN  Xiao-Hong, LI  Qing-Ming, QIN  Dan, ZHANG  Yu, WANG  Feng   

  1. College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China
  • Online:2007-01-15 Published:2011-12-31

摘要: 对子姜在不同低温条件下的冻结曲线进行了测定,分析了以空气作为冷冻介质时子姜片的冻结规律,探讨了漂烫处理、冻结速度对产品质地的影响。实验结果表明,冷冻温度在-40℃以下可达到速冻要求;冻结前漂烫处理造成冰点上升,但在-40℃以下冻结时通过最大冰晶生成带的时间没有明显变化。

关键词: 子姜, 速冻, 漂烫, 最大冰晶生成带

Abstract: This article analysed the freezing properties of ginger while taking air as freezing medium by testing its freezing points under different low-temperatures.The impact of scalding and freezing velocity on the texture of products were also studied. The results showed that the temperature below -40℃ satisfies quick-freezing, while scalting process makes the freezing point rise but the freezing time spent on zone of maximum crystallization dose not change obviously while the temperature is below -40℃.

Key words: ginger, quick freezing, scalt, zone of maximum crystallisation