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Characterisation of the Mycobiota on the Shell Surface of Table Eggs Acquired from Different Egg-Laying Hen Breeding Systems

Microbial safety is an important factor contributing to the egg quality. During egg acquisition, there is significant risk of contamination of the eggshell surface with microscopic fungi. Mycelial hyphae may grow on the eggshell surface and penetrate into the egg content. However, there is no inform...

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Autores principales: Tomczyk, Łukasz, Stępień, Łukasz, Urbaniak, Monika, Szablewski, Tomasz, Cegielska-Radziejewska, Renata, Stuper-Szablewska, Kinga
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6071293/
https://www.ncbi.nlm.nih.gov/pubmed/30012982
http://dx.doi.org/10.3390/toxins10070293
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author Tomczyk, Łukasz
Stępień, Łukasz
Urbaniak, Monika
Szablewski, Tomasz
Cegielska-Radziejewska, Renata
Stuper-Szablewska, Kinga
author_facet Tomczyk, Łukasz
Stępień, Łukasz
Urbaniak, Monika
Szablewski, Tomasz
Cegielska-Radziejewska, Renata
Stuper-Szablewska, Kinga
author_sort Tomczyk, Łukasz
collection PubMed
description Microbial safety is an important factor contributing to the egg quality. During egg acquisition, there is significant risk of contamination of the eggshell surface with microscopic fungi. Mycelial hyphae may grow on the eggshell surface and penetrate into the egg content. However, there is no information on the populations of microscopic fungi on the eggshell surface and, consequently, on possible production of mycotoxins. Therefore, the aim of the study was to identify the species of microscopic fungi present on the eggshell surface acquired from different breeding systems and to measure the number of selected mycotoxins. The qualitative analysis resulted in the identification of 41 isolates on the surface of eggs. There were 7 isolates from the organic production system, 11 from the free-range production system, 14 from the deep litter indoor housing system and 9 from the cage farming production system. The research proved that the diversification in the population of mycobiota on the eggshells depended on the egg-laying hen breeding system. The microscopic fungi isolated from the eggshells included toxigenic and pathogenic species such as Fusarium culmorum and F. equiseti. As the egg storage time increased, fungi, including the pathogenic species, penetrated through the eggshells. In consequence, mycotoxins were identified in the egg whites. Type-A and type-B trichothecenes were found in the eggshell samples containing F. culmorum.
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spelling pubmed-60712932018-08-09 Characterisation of the Mycobiota on the Shell Surface of Table Eggs Acquired from Different Egg-Laying Hen Breeding Systems Tomczyk, Łukasz Stępień, Łukasz Urbaniak, Monika Szablewski, Tomasz Cegielska-Radziejewska, Renata Stuper-Szablewska, Kinga Toxins (Basel) Article Microbial safety is an important factor contributing to the egg quality. During egg acquisition, there is significant risk of contamination of the eggshell surface with microscopic fungi. Mycelial hyphae may grow on the eggshell surface and penetrate into the egg content. However, there is no information on the populations of microscopic fungi on the eggshell surface and, consequently, on possible production of mycotoxins. Therefore, the aim of the study was to identify the species of microscopic fungi present on the eggshell surface acquired from different breeding systems and to measure the number of selected mycotoxins. The qualitative analysis resulted in the identification of 41 isolates on the surface of eggs. There were 7 isolates from the organic production system, 11 from the free-range production system, 14 from the deep litter indoor housing system and 9 from the cage farming production system. The research proved that the diversification in the population of mycobiota on the eggshells depended on the egg-laying hen breeding system. The microscopic fungi isolated from the eggshells included toxigenic and pathogenic species such as Fusarium culmorum and F. equiseti. As the egg storage time increased, fungi, including the pathogenic species, penetrated through the eggshells. In consequence, mycotoxins were identified in the egg whites. Type-A and type-B trichothecenes were found in the eggshell samples containing F. culmorum. MDPI 2018-07-16 /pmc/articles/PMC6071293/ /pubmed/30012982 http://dx.doi.org/10.3390/toxins10070293 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Tomczyk, Łukasz
Stępień, Łukasz
Urbaniak, Monika
Szablewski, Tomasz
Cegielska-Radziejewska, Renata
Stuper-Szablewska, Kinga
Characterisation of the Mycobiota on the Shell Surface of Table Eggs Acquired from Different Egg-Laying Hen Breeding Systems
title Characterisation of the Mycobiota on the Shell Surface of Table Eggs Acquired from Different Egg-Laying Hen Breeding Systems
title_full Characterisation of the Mycobiota on the Shell Surface of Table Eggs Acquired from Different Egg-Laying Hen Breeding Systems
title_fullStr Characterisation of the Mycobiota on the Shell Surface of Table Eggs Acquired from Different Egg-Laying Hen Breeding Systems
title_full_unstemmed Characterisation of the Mycobiota on the Shell Surface of Table Eggs Acquired from Different Egg-Laying Hen Breeding Systems
title_short Characterisation of the Mycobiota on the Shell Surface of Table Eggs Acquired from Different Egg-Laying Hen Breeding Systems
title_sort characterisation of the mycobiota on the shell surface of table eggs acquired from different egg-laying hen breeding systems
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6071293/
https://www.ncbi.nlm.nih.gov/pubmed/30012982
http://dx.doi.org/10.3390/toxins10070293
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