FOOD SCIENCE ›› 2007, Vol. 28 ›› Issue (4): 83-86.

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Study on Lotus Root Freezing Point Assay by Electrical Conductivity Method

 LIN  Xiang-Dong, ZHANG  Qi, JING  Shi-Cong, SUN  Da-Yuan   

  1. Ocean College,Hainan University,Haikou 570228,China
  • Online:2007-04-15 Published:2011-12-31

Abstract: In this paper,the freezing point of lotus root was assayed according to the variations of food material electrical conductivities while the temperature was changing.The range of lotus root freezing point was from -1.4℃to -1.9℃.The error was less than 0.05℃by practice validation.It indicated that the method of determining fruits and vegetables by electrical conductivity is much simpler,preciser and more economical.This method can also determine the freezing points of various fresh meats and liquid foods,to be used for function reference and popularizatione evaluation.

Key words: lotus root, electrical conductivity, freezing point