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[PDF]Influence of salt, starch and pH on the electroosmosis dewatering of tomato paste suspension

 

Author: Rami Jumah *, Sameer Al-Asheh, Fawzi Banat and Khalid Al-Zoubi

 

Received 22 September 2006, accepted 19 December 2006.

Abstract

 

Preservative agents are usually added to extend the shelf life of manufactured foods. In this paper, the effect of adding starch and NaCl salt as well as adjusting the suspension pH on the electroosmosis dewatering of tomato paste suspension was considered. Starch addition lessened the dewatering rate, while salt addition enhanced it. The effect of suspension pH was dependent on the electrical field; the dewatering rate increased with increased pH under AC electrical field and decreased with increased pH under DC electrical field.

 

Key words: Electroosmosis, dewatering, tomato, starch, salts, pH effect.

 

[FULL text for subscribers]

Journal: Food, Agriculture & Environment (JFAE)
Online ISSN: 1459-0263
Year: 2007, Vol. 5, Issue 1, pages 34-38.
Publisher: WFL

 


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