Skip to main content
Article
Autochthonous facility-specific microbiota dominates washed-rind Austrian hard cheese surfaces and its production environment
International Journal of Food Microbiology
  • Narciso M. Quijada, University of Veterinary Medicine Vienna
  • Evelyne Mann, University of Veterinary Medicine Vienna
  • Martin Wagner, University of Veterinary Medicine Vienna
  • David Rodríguez-Lázaro, Universidad de Burgos
  • Marta Hernández, Instituto Tecnológico Agrario de Castilla y León
  • Stephan Schmitz-Esser, Iowa State University
Document Type
Article
Publication Version
Accepted Manuscript
Publication Date
2-1-2018
DOI
10.1016/j.ijfoodmicro.2017.12.025
Abstract

Cheese ripening involves the succession of complex microbial communities that are responsible for the organoleptic properties of the final products. The food processing environment can act as a source of natural microbial inoculation, especially in traditionally manufactured products. Austrian Vorarlberger Bergkäse (VB) is an artisanal washed-rind hard cheese produced in the western part of Austria without the addition of external ripening cultures. Here, the composition of the bacterial communities present on VB rinds and on different processing surfaces from two ripening cellars was assessed by near full length 16S rRNA gene amplification, cloning and sequencing. Non-inoculated aerobic bacteria dominated all surfaces in this study. VB production conditions (long ripening time, high salt concentration and low temperatures) favor the growth of psychro- and halotolerant bacteria. Several bacterial groups, such as coryneforms, Staphylococcus equorum and Halomonas dominated VB and were also found on most environmental surfaces. Analysis of OTUs shared between different surfaces suggests that VB rind bacteria are inoculated naturally during the ripening from the processing environment and that cheese surfaces exert selective pressure on these communities, as only those bacteria better adapted flourished on VB rinds. This study analyzed VB processing environment microbiota and its relationship with VB rinds for the first time, elucidating that the processing environment and the cheese microbiota should be considered as microbiologically linked ecosystems with the goal of better defining the events that take place during cheese maturation.

Comments

This is a manuscript of an article published as Quijada, Narciso M., Evelyne Mann, Martin Wagner, David Rodríguez-Lázaro, Marta Hernández, and Stephan Schmitz-Esser. "Autochthonous facility-specific microbiota dominates washed-rind Austrian hard cheese surfaces and its production environment." International journal of food microbiology 267 (2018): 54-61. Posted with permission.

Creative Commons License
Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International
Copyright Owner
Elsevier B.V.
Language
en
File Format
application/pdf
Citation Information
Narciso M. Quijada, Evelyne Mann, Martin Wagner, David Rodríguez-Lázaro, et al.. "Autochthonous facility-specific microbiota dominates washed-rind Austrian hard cheese surfaces and its production environment" International Journal of Food Microbiology Vol. 267 (2018) p. 54 - 61
Available at: http://works.bepress.com/stephan-schmitz-esser/44/