Investigating the Effects of Current and Wave Form of Electrical Pre-treatments on the Yield and Quality of Tomato Juice

Tekgul Y., Ozcan K. C. , BAYSAL T. , Ergun A. R. , Bozkir H.

INTERNATIONAL JOURNAL OF FOOD ENGINEERING, vol.11, no.4, pp.527-532, 2015 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 11 Issue: 4
  • Publication Date: 2015
  • Doi Number: 10.1515/ijfe-2014-0326
  • Page Numbers: pp.527-532


In this study, the effects of different current and wave forms of electrical application by electroplasmolyzator on the production of tomato juice were investigated. The whole electrical design can be divided into three subtitles. The three subtitles are used for only auto-transformer outputs for "AC (alternative current) voltage", and the AC rectification for "DC" (direct current) voltage and the gate drive of the switching devices for "square waves". Yield, lycopene content and color values were compared for these different current and wave forms. As a result the yield increase was found mostly in the AC-treated group which has square wave form and bipolar single phase (100 V-90 s). Lycopene was also found mostly in the same group. Significant differences were found between the groups that are treated with different current and wave forms.