Potential of N2 Gas Flushing to Hinder Dairy-Associated Biofilm Formation and Extension

Worldwide, the dairy sector remains of vital importance for food production despite severe environmental constraints. The production and handling conditions of milk, a rich medium, promote inevitably the entrance of microbial contaminants, with notable impact on the quality and safety of raw milk an...

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Main Authors: Patricia Munsch-Alatossava, Tapani Alatossava
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-07-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fmicb.2020.01675/full
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author Patricia Munsch-Alatossava
Tapani Alatossava
author_facet Patricia Munsch-Alatossava
Tapani Alatossava
author_sort Patricia Munsch-Alatossava
collection DOAJ
description Worldwide, the dairy sector remains of vital importance for food production despite severe environmental constraints. The production and handling conditions of milk, a rich medium, promote inevitably the entrance of microbial contaminants, with notable impact on the quality and safety of raw milk and dairy products. Moreover, the persistence of high concentrations of microorganisms (especially bacteria and bacterial spores) in biofilms (BFs) present on dairy equipment or environments constitutes an additional major source of milk contamination from pre- to post-processing stages: in dairies, BFs represent a major concern regarding the risks of disease outbreaks and are often associated with significant economic losses. One consumption trend toward “raw or low-processed foods” combined with current trends in food production systems, which tend to have more automation and longer processing runs with simultaneously more stringent microbiological requirements, necessitate the implementation of new and obligatory sustainable strategies to respond to new challenges regarding food safety. Here, in light of studies, performed mainly with raw milk, that considered dominant “planktonic” conditions, we reexamine the changes triggered by cold storage alone or combined with nitrogen gas (N2) flushing on bacterial populations and discuss how the observed benefits of the treatment could also contribute to limiting BF formation in dairies.
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spelling doaj.art-efc9b54427a846c986fb0015b4c74b1f2022-12-22T01:30:08ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2020-07-011110.3389/fmicb.2020.01675560565Potential of N2 Gas Flushing to Hinder Dairy-Associated Biofilm Formation and ExtensionPatricia Munsch-Alatossava0Tapani Alatossava1Independent Researcher, Helsinki, FinlandDepartment of Food and Nutrition, University of Helsinki, Helsinki, FinlandWorldwide, the dairy sector remains of vital importance for food production despite severe environmental constraints. The production and handling conditions of milk, a rich medium, promote inevitably the entrance of microbial contaminants, with notable impact on the quality and safety of raw milk and dairy products. Moreover, the persistence of high concentrations of microorganisms (especially bacteria and bacterial spores) in biofilms (BFs) present on dairy equipment or environments constitutes an additional major source of milk contamination from pre- to post-processing stages: in dairies, BFs represent a major concern regarding the risks of disease outbreaks and are often associated with significant economic losses. One consumption trend toward “raw or low-processed foods” combined with current trends in food production systems, which tend to have more automation and longer processing runs with simultaneously more stringent microbiological requirements, necessitate the implementation of new and obligatory sustainable strategies to respond to new challenges regarding food safety. Here, in light of studies, performed mainly with raw milk, that considered dominant “planktonic” conditions, we reexamine the changes triggered by cold storage alone or combined with nitrogen gas (N2) flushing on bacterial populations and discuss how the observed benefits of the treatment could also contribute to limiting BF formation in dairies.https://www.frontiersin.org/article/10.3389/fmicb.2020.01675/fullcold chainfood spoilagedairybacteriabiofilmsN2 gas flushing
spellingShingle Patricia Munsch-Alatossava
Tapani Alatossava
Potential of N2 Gas Flushing to Hinder Dairy-Associated Biofilm Formation and Extension
Frontiers in Microbiology
cold chain
food spoilage
dairy
bacteria
biofilms
N2 gas flushing
title Potential of N2 Gas Flushing to Hinder Dairy-Associated Biofilm Formation and Extension
title_full Potential of N2 Gas Flushing to Hinder Dairy-Associated Biofilm Formation and Extension
title_fullStr Potential of N2 Gas Flushing to Hinder Dairy-Associated Biofilm Formation and Extension
title_full_unstemmed Potential of N2 Gas Flushing to Hinder Dairy-Associated Biofilm Formation and Extension
title_short Potential of N2 Gas Flushing to Hinder Dairy-Associated Biofilm Formation and Extension
title_sort potential of n2 gas flushing to hinder dairy associated biofilm formation and extension
topic cold chain
food spoilage
dairy
bacteria
biofilms
N2 gas flushing
url https://www.frontiersin.org/article/10.3389/fmicb.2020.01675/full
work_keys_str_mv AT patriciamunschalatossava potentialofn2gasflushingtohinderdairyassociatedbiofilmformationandextension
AT tapanialatossava potentialofn2gasflushingtohinderdairyassociatedbiofilmformationandextension