Home About Browse Search
Svenska


Commercial wash of leafy vegetables do not significantly decrease bacterial load but leads to shifts in bacterial species composition

Rosberg, Anna Karin and Darlison, Julia and Mogren, Lars and Alsanius, Beatrix (2021). Commercial wash of leafy vegetables do not significantly decrease bacterial load but leads to shifts in bacterial species composition. Food Microbiology. 94 , 103667
[Journal article]

[img] PDF
6MB

Abstract

Production of leafy vegetables for the “Ready-to-eat”-market has vastly increased the last 20 years, and consumption of these minimally processed vegetables has led to outbreaks of food-borne diseases. Contamination of leafy vegetables can occur throughout the production chain, and therefore washing of the produce has become a standard in commercial processing. This study explores the bacterial communities of spinach (Spinacia oleracea) and rocket (Diplotaxis tenuifolia) in a commercial setting in order to identify potential contamination events, and to investigate effects on bacterial load by commercial processing. Samples were taken in field, after washing of the produce and at the end of shelf-life. This study found that the bacterial community composition and diversity changed significantly from the first harvest to the end of shelf-life, where the core microbiome from the first to the last sampling constituted <2% of all OTUs. While washing of the produce had no reducing effect on bacterial load compared to unwashed, washing led to a change in species composition. As the leaves entered the cold chain after harvest, a rise was seen in the relative abundance of spoilage bacteria. E. coli was detected after the washing indicating issues of cross-contamination in the wash water.

Authors/Creators:Rosberg, Anna Karin and Darlison, Julia and Mogren, Lars and Alsanius, Beatrix
Title:Commercial wash of leafy vegetables do not significantly decrease bacterial load but leads to shifts in bacterial species composition
Series Name/Journal:Food Microbiology
Year of publishing :2021
Volume:94
Article number:103667
Number of Pages:12
Associated Programs and Other Stakeholders:Z - SLU - Libray > Odla mera
ISSN:0740-0020
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Horticulture
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Microbiology (Microbiology in the medical area to be 30109)
Keywords:microbiome, minimally processed leafy vegetables, Phyllosphere spinach (Spinacia oleracea), Rocket (Diplotaxis tenuifolia)
URN:NBN:urn:nbn:se:slu:epsilon-p-109218
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-109218
Additional ID:
Type of IDID
DOI10.1016/j.fm.2020.103667
ID Code:19678
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Biosystems and Technology (from 130101)
Deposited By: SLUpub Connector
Deposited On:17 Dec 2020 14:03
Metadata Last Modified:18 Dec 2020 05:00

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits