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The Effects of Washing Practices and Storage on Antioxidant Activity of Some Selected Fruits



Noushin R1 ; Nasrin F2 ; Mahmood A2 ; Masud Y1, 2 ; Nasrin S3
Authors
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Authors Affiliations
  1. 1. Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences (TUMS), Tehran, Iran
  2. 2. Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences (TUMS), Tehran, Iran
  3. 3. Department of Drug and Food Control, Tehran University of Medical Sciences (TUMS), Tehran, Iran

Source: International Journal of Pharmaceutical and Clinical Research Published:2015

Abstract

Effects of washing practices using a commercial detergent or disinfectants alone or in combination with each other on the radical-scavenging activity and reducing power of the fresh fruits were examined. The fresh fruits were subjected to a triple wash treatment of washing in tap water for mud removal, washing in water containing a detergent (dishwashing liquid) or disinfectant individually, and rinsing in tap water. The results show that there were significant variations in antioxidant activity across fresh fruits (ranging from 15.02 to 57.15 mmol/L Trolox equivalents per kg of fresh weight). The antioxidant capacities of the all samples were soaked in Kanz Disinfecting Liquid showed lowest antioxidant activity (P<0.05). Pretreatment with detergent before washing with calcium hypochlorite or benzalkonium chloride showed significant reductions of antioxidant activity (ranging from 8 to 27%, P< 0.05). Levels of total antioxidant activity showed different changes throughout the storage period at 4 ˚C depend on storage duration. © 2015, International Journal of Pharmaceutical and Clinical Research. All rights reserved.
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