Coexistence of Lactic Acid Bacteria and Potential Spoilage Microbiota in a Dairy Processing Environment

Applied and Environmental Microbiology
Giuseppina StellatoDanilo Ercolini

Abstract

Microbial contamination in food processing plants can play a fundamental role in food quality and safety. In this study, the microbiota in a dairy plant was studied by both 16S rRNA- and 26S rRNA-based culture-independent high-throughput amplicon sequencing. Environmental samples from surfaces and tools were studied along with the different types of cheese produced in the same plant. The microbiota of environmental swabs was very complex, including more than 200 operational taxonomic units with extremely variable relative abundances (0.01 to 99%) depending on the species and sample. A core microbiota shared by 70% of the samples indicated a coexistence of lactic acid bacteria with a remarkable level of Streptococcus thermophilus and possible spoilage-associated bacteria, including Pseudomonas, Acinetobacter, and Psychrobacter, with a relative abundance above 50%. The most abundant yeasts were Kluyveromyces marxianus, Yamadazyma triangularis, Trichosporon faecale, and Debaryomyces hansenii. Beta-diversity analyses showed a clear separation of environmental and cheese samples based on both yeast and bacterial community structure. In addition, predicted metagenomes also indicated differential distribution of metabolic pathways bet...Continue Reading

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Citations

Jan 17, 2016·Current Opinion in Biotechnology·Nicholas A BokulichDavid A Mills
Jul 20, 2016·International Journal of Food Microbiology·Cecilia FontanaGraciela Vignolo
Aug 24, 2016·International Journal of Food Microbiology·Trond MøretrøSolveig Langsrud
Oct 22, 2016·International Journal of Food Microbiology·Eric Dugat-BonyFrançoise Irlinger
Oct 7, 2016·Microbial Biotechnology·Francesca De FilippisDanilo Ercolini
Mar 18, 2017·Frontiers in Microbiology·Giuseppina StellatoDanilo Ercolini
May 2, 2017·Biological & Pharmaceutical Bulletin·Reiko IkedaKazuki Yanagisawa
Jan 20, 2018·Annual Review of Food Science and Technology·Francesca De FilippisDanilo Ercolini
Jun 20, 2017·Applied and Environmental Microbiology·Francesca De FilippisDanilo Ercolini
Apr 24, 2016·Applied and Environmental Microbiology·Valentina AlessandriaLuca Cocolin
Dec 5, 2018·Yeast·Marie-Therese Fröhlich-WyderErnst Jakob
Apr 28, 2019·Applied and Environmental Microbiology·Mary E KableMaria L Marco
Jun 11, 2017·Applied and Environmental Microbiology·Ilario FerrocinoLuca Cocolin
Jun 20, 2020·FEMS Microbiology Reviews·Francesca De FilippisDanilo Ercolini
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Mar 27, 2021·Frontiers in Microbiology·Jared JohnsonJoy Waite-Cusic
Jul 4, 2021·International Journal of Food Microbiology·Caroline Isabel KothePierre Renault

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