The Impact of Washing and Filtration on Diazinon Residue during Tomato Paste Production

By Zohreh Baratian-Ghorghi.

Published by Food Studies: An Interdisciplinary Journal

Format Price
Article: Print $US10.00
Published online: July 10, 2014 $US5.00

Pesticides are, mostly, synthetic chemical substances which are widely used in agriculture to control crop pests and diseases. They can be found, thereafter, in the fresh fruits, vegetables, and in different processed products. In this study, the residue amounts of the Diazinon insecticide were investigated using a number of tomato [Lycopersicon esculentum (Philip Miller, 1768)] samples. In addition, the effects of washing and filtration processes on the reduction of pesticide residues were studied during tomato paste production. The test samples consisted of prewashing samples, post-washing samples, tomato juice, and tomato pomace samples. Samples were analyzed for Diazinon traces using the high-performance thin-layer chromatography (HPTLC) method. Results showed that the washing process caused a 21.3% reduction in Diazinon residue and the filtration process distributed the amount of pesticide between tomato juice and tomato pomace in a 15.67:1 ratio.

Keywords: Diazinon, Juicing, Residue, Tomato, Washing

Food Studies: An Interdisciplinary Journal, Volume 3, Issue 2, July 2014, pp.41-48. Article: Print (Spiral Bound). Published online: July 10, 2014 (Article: Electronic (PDF File; 399.591KB)).

Zohreh Baratian-Ghorghi

Graduate, Agricultural Sciences & Natural Resources, University of Gorgan, Gorgan, Mazandaran, Iran (Islamic Republic of)