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Efficacy of antimicrobial combinations to reduce the use of sodium hypochlorite in the control of planktonic and sessile Escherichia coli

Paper ID Volume ID Publish Year Pages File Format Full-Text
2796 135 2015 8 PDF Available
Title
Efficacy of antimicrobial combinations to reduce the use of sodium hypochlorite in the control of planktonic and sessile Escherichia coli
Abstract

•Sodium hypochlorite can produce carcinogenic chlorinated compounds in water.•Alternative disinfection methods reduce the use of chlorine if used combined.•Peracetic acid and chlorine dioxide were the most effective disinfectants tested.•Sodium hypochlorite and peracetic acid mixture increased antimicrobial activity.•Sodium bicarbonate action combined with chlorine was enhanced in disinfection.

Foodborne illness outbreaks linked to fresh produce are becoming more frequent and widespread. The types and properties of the chemical agents used for washing, cleaning and disinfection procedures, particularly their toxicity are the key indicators of environmental performance of a minimally processed vegetables (MPV) industry. The main aims of this work were focused on the evaluation of selected disinfectants (chlorine dioxide, peracetic acid, hydrogen peroxide, copper sulphate, vanillin and sodium bicarbonate) alone and combined with sodium hypochlorite on the control of Escherichia coli planktonic and sessile cells. The most effective disinfectants tested in planktonic cells were peracetic acid (6 mM) and chlorine dioxide (3 mM) and the best combination with sodium hypochlorite (3 mM) was obtained with peracetic acid (2 mM). In sessile cells, hydrogen peroxide and vanillin had antagonistic effects in combination with sodium hypochlorite whereas sodium bicarbonate efficiency was enhanced when combined with sodium hypochlorite.

Keywords
CD, chlorine dioxide; CFU, colony forming units; CS, copper sulphate; HP, hydrogen peroxide; LR, log CFU reduction index; LRc, log CFU reduction of the compound in the combination; LRi, log CFU reduction of the compound used individually; MBC, minimum bac
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Efficacy of antimicrobial combinations to reduce the use of sodium hypochlorite in the control of planktonic and sessile Escherichia coli
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 104, 15 December 2015, Pages 115–122
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us