Abstract

The pretreatment of fresh vegetables with HPEF can improve lyophilized speed and reduce energy consumption, but when people study how to use fresh vegetables dielectric properties online to monitor the change of lyophilized water, they need to consider the impact of parameters of high voltage pulsed electric field on dielectric properties of fresh vegetables. Therefore, according to the author's many years of study and practical experience, this study first analyzes the dielectric properties of fresh vegetables and then develops the required equivalent circuit of this study; finally, it focuses on the impact of the mechanism of pulsed electric field parameters. The result of this study will provide a useful reference to the treatment of fresh vegetables with the HPEF.

Keywords:

Dielectric properties, electric parameters, fresh vegetables, influential mechanism, the HPEF,

References

1. Guo, Y., 2010. The influence of the pretreatment of HPEF having on the physical properties of fruits and vegetables [A]. Chinese Society of Agricultural Engineering-Processing and Storage Engineering Branch of Agricultural Products. Papers Abstracts of papers on the 2010 Annual Conference of Chinese Society Agricultural Engineering and Agricultural Products Processing as well as Storage Engineering Branch and research seminar papers of processing of agricultural products in South China [C]. Chinese Society of Agricultural Engineering Agricultural Products Processing and Storage Engineering Council, pp: 1.
   
2. Kristiawan, M., V. Sobolik, L. Klíma and K. Allaf, 2011. Effect of expansion by instantaneous controlled pressure drop on dielectric properties of fruits and vegetables. J. Food Eng., 102(4): 361-368.
   CrossRef    
3. Ma, F. and Y. Guo, 2013. An experimental studies on the effects the HPEF having on the dielectric properties of fruits and vegetables. Shanxi Agric. Univ., Nat. Sci. Edn., 03: 230-235.
   
4. Peyman, A. and C. Gabriel, 2010. Cole-Cole parameters for the dielectric properties of porcine tissues as a function of age at microwave frequencies. Phys. Med. Biol., 55(15): N413-419.
   CrossRef    PMid:20647605    
5. Rudan-Tasic, D., S. Jurca and C. Klofutar, 2001. Dielectric properties of some components of fruit aroma in carbon tetrachloride solution at 298.15 K. Physiol. Chem. Phys. Med. NMR, 32(2): 155-166.
   
6. Yali, W. and G. Yuming, 2009. The influence HPEF having on biomechanical properties of fruits and vegetables. Agr. Eng., 11: 336-340.
   
7. Zhang, D. and Y. He, 2014. High precision for leaf area measurement and instrument development. Adv. J. Food Sci. Technol., 6(2): 167-172.
   
8. Zheng, X., Y. Guo, Y. Wang and R. Wang, 2011. The influence the pretreatment of the HPEF having on the dielectric properties of fruits and vegetables [A]. Chinese Society of Agricultural Engineering (CSAE). Chinese Society of Agricultural Engineering 2011 Annual Conference Proceedings (C), Chinese Society of Agricultural Engineering (CSAE), pp: 5.
   

Competing interests

The authors have no competing interests.

Open Access Policy

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Copyright

The authors have no competing interests.