Impact of chlorine dioxide disinfection of irrigation water on the epiphytic bacterial community of baby spinach and underlying soil

PloS One
Pilar TruchadoAna Allende

Abstract

The contamination of pathogenic bacteria through irrigation water is a recognized risk factor for fresh produce. Irrigation water disinfection is an intervention strategy that could be applied to reduce the probability of microbiological contamination of crops. Disinfection treatments should be applied ensuring minimum effective doses, which are efficient in inhibiting the microbial contamination while avoiding formation and accumulation of chemical residues. Among disinfection technologies available for growers, chlorine dioxide (ClO2) represents, after sodium hypochlorite, an alternative disinfection treatment, which is commercially applied by growers in the USA and Spain. However, in most of the cases, the suitability of this treatment has been tested against pathogenic bacteria and low attention have been given to the impact of chemical residues on the bacterial community of the vegetable tissue. The aim of this study was to (i) to evaluate the continual application of chlorine dioxide (ClO2) as a water disinfection treatment of irrigation water during baby spinach growth in commercial production open fields, and (ii) to determine the subsequent impact of these treatments on the bacterial communities in water, soil, and bab...Continue Reading

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Citations

Mar 25, 2020·Microbial Biotechnology·Youming ShenHaifei Li
Feb 8, 2020·Journal of Food Protection·J L Banach, H J van der Fels-Klerx
Feb 12, 2021·Probiotics and Antimicrobial Proteins·Chul Sang LeeSae Hun Kim
Feb 26, 2021·International Journal of Food Microbiology·Vongai DakwaTom Ross

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Methods Mentioned

BETA
electrophoresis
PCR
Illumina sequencing
DNA assay
PMA
MDS

Software Mentioned

phyloseq
R
vegan
BLASTn
UPGMA
studio
Quantitative Insights into Microbial Ecology ( QIIME )
PERMANOVA
SPSS
ANOSIM

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