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Effect of overhead spray and brush roller treatment on the survival of Pectobacterium and Salmonella on tomato surfaces.
J Food Prot. 2015 Jan; 78(1):51-6.JF

Abstract

Overhead spray and brush roller (OSBR) treatment has been shown to remove significantly more Salmonella from tomato surfaces than flume treatment. However, OSBR is not widely used in tomato packing facilities compared with other commodities, and little is known about whether brushing causes microabrasions or other physical damage. Bacteria such as Pectobacterium, a soft rot-producing plant pathogen, and Salmonella, a human pathogen, show increased survival and growth on damaged tomato surfaces. This study evaluated whether OSBR treatment had a negative effect on the safety and/or marketability of tomatoes by examining its effect on Pectobacterium and Salmonella survival. Pectobacterium survival was evaluated on inoculated tomatoes that were OSBR treated with water or sanitizer (100 ppm of NaOCl, 5 ppm of ClO2, or 80 ppm of peracetic acid). A 15-s OSBR treatment using water or sanitizer achieved a 3-log CFU/ml reduction in Pectobacterium levels. Survival of Pectobacterium and Salmonella on OSBR-treated, untreated, and puncture-wounded tomatoes stored at 25°C and 75 to 85 % relative humidity for 7 days was also assessed. Both Pectobacterium and Salmonella populations declined rapidly on OSBR-treated and untreated tomatoes, indicating that brushing does not damage tomato fruit to the extent of promoting better pathogen survival. In contrast, the survival of both organisms was significantly (P ≤ 0.05) higher on artificially wounded fruit. These results indicate that OSBR treatment does not increase the survival and growth of Pectobacterium or Salmonella on tomato surfaces and that it is effective in reducing Pectobacterium levels on the surface of inoculated tomatoes. These results suggest that, if used properly, an OSBR system in packinghouses is effective in removing surface contamination and does not affect tomato quality or safety.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Balaguero AN
Food Science and Human Nutrition Department, Institute of Food and Agricultural Sciences, University of Florida, 359 FSHN Building, Newell Drive, Gainesville, Florida 32611, USA; Arnet Pharmaceutical, 2525 Davie Road, Building 330, Davie, FL 33317, USA.
Sreedharan A
Food Science and Human Nutrition Department, Institute of Food and Agricultural Sciences, University of Florida, 359 FSHN Building, Newell Drive, Gainesville, Florida 32611, USA. sreedha@ufl.edu.
Schneider KR
Food Science and Human Nutrition Department, Institute of Food and Agricultural Sciences, University of Florida, 359 FSHN Building, Newell Drive, Gainesville, Florida 32611, USA.

MeSH

AnimalsColony Count, MicrobialDisinfectantsFood MicrobiologyFood PreservationSolanum lycopersicumPectobacteriumPeracetic AcidSalmonellaSalmonella Food Poisoning

Pub Type(s)

Journal Article

Language

eng

PubMed ID

25581177

Citation

Balaguero, Alina N., et al. "Effect of Overhead Spray and Brush Roller Treatment On the Survival of Pectobacterium and Salmonella On Tomato Surfaces." Journal of Food Protection, vol. 78, no. 1, 2015, pp. 51-6.
Balaguero AN, Sreedharan A, Schneider KR. Effect of overhead spray and brush roller treatment on the survival of Pectobacterium and Salmonella on tomato surfaces. J Food Prot. 2015;78(1):51-6.
Balaguero, A. N., Sreedharan, A., & Schneider, K. R. (2015). Effect of overhead spray and brush roller treatment on the survival of Pectobacterium and Salmonella on tomato surfaces. Journal of Food Protection, 78(1), 51-6. https://doi.org/10.4315/0362-028X.JFP-14-254
Balaguero AN, Sreedharan A, Schneider KR. Effect of Overhead Spray and Brush Roller Treatment On the Survival of Pectobacterium and Salmonella On Tomato Surfaces. J Food Prot. 2015;78(1):51-6. PubMed PMID: 25581177.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of overhead spray and brush roller treatment on the survival of Pectobacterium and Salmonella on tomato surfaces. AU - Balaguero,Alina N, AU - Sreedharan,Aswathy, AU - Schneider,Keith R, PY - 2015/1/13/entrez PY - 2015/1/13/pubmed PY - 2015/9/2/medline SP - 51 EP - 6 JF - Journal of food protection JO - J Food Prot VL - 78 IS - 1 N2 - Overhead spray and brush roller (OSBR) treatment has been shown to remove significantly more Salmonella from tomato surfaces than flume treatment. However, OSBR is not widely used in tomato packing facilities compared with other commodities, and little is known about whether brushing causes microabrasions or other physical damage. Bacteria such as Pectobacterium, a soft rot-producing plant pathogen, and Salmonella, a human pathogen, show increased survival and growth on damaged tomato surfaces. This study evaluated whether OSBR treatment had a negative effect on the safety and/or marketability of tomatoes by examining its effect on Pectobacterium and Salmonella survival. Pectobacterium survival was evaluated on inoculated tomatoes that were OSBR treated with water or sanitizer (100 ppm of NaOCl, 5 ppm of ClO2, or 80 ppm of peracetic acid). A 15-s OSBR treatment using water or sanitizer achieved a 3-log CFU/ml reduction in Pectobacterium levels. Survival of Pectobacterium and Salmonella on OSBR-treated, untreated, and puncture-wounded tomatoes stored at 25°C and 75 to 85 % relative humidity for 7 days was also assessed. Both Pectobacterium and Salmonella populations declined rapidly on OSBR-treated and untreated tomatoes, indicating that brushing does not damage tomato fruit to the extent of promoting better pathogen survival. In contrast, the survival of both organisms was significantly (P ≤ 0.05) higher on artificially wounded fruit. These results indicate that OSBR treatment does not increase the survival and growth of Pectobacterium or Salmonella on tomato surfaces and that it is effective in reducing Pectobacterium levels on the surface of inoculated tomatoes. These results suggest that, if used properly, an OSBR system in packinghouses is effective in removing surface contamination and does not affect tomato quality or safety. SN - 1944-9097 UR - https://www.unboundmedicine.com/medline/citation/25581177/Effect_of_overhead_spray_and_brush_roller_treatment_on_the_survival_of_Pectobacterium_and_Salmonella_on_tomato_surfaces_ DB - PRIME DP - Unbound Medicine ER -