Toxigenic penicillia spoiling frozen chicken nuggets

Wigmann, Évelin Francine; Saccomori, Fernanda; Bernardi, Angélica Olivier; Frisvad, Jens Christian; Copetti, Marina Venturini

doi:10.1016/j.foodres.2014.11.025

Cited by 22 publications

(4 citation statements)

References 21 publications

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“…2012 , Rosa et al 2010 ). Citreoviridin production is associated with numerous species from various substrates ( Cole et al 1981 , Wicklow & Cole 1984 , Wicklow et al 1988 , Wigmann et al . 2015 ); Peterson et al (2015) updated identifications from previous studies, confirming that many Penicillium species do produce citreoviridin.…”

Section: Discussionmentioning

confidence: 99%

A phylogenetic revision of Penicillium sect. Exilicaulis, including nine new species from fynbos in South Africa

et al. 2016

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A survey of the fynbos biome in South Africa resulted in the isolation of 61 Penicillium species from Protea repens infructescences, air, and soil samples. Fourteen of these belong to Penicillium sect. Exilicaulis and therefore we considered it an opportunity to re-evaluate the taxonomy of the section. Phylogenetic comparisons of the ITS, β-tubulin, calmodulin and RPB2 gene regions of the 76 section Exilicaulis species, revealed 52 distinct species, including nine new species from fynbos. Morphological comparisons confirmed the novelty for most of these, however, new species closely related to P. rubefaciens did not show significant or consistent morphological differences and we thus placed a bias on phylogenetic data applying the Genealogical Concordance Phylogenetic Species Recognition (GCPSR) concept. In this paper we describe the nine new species and update the accepted species list and resolve synonyms in the section. Importantly, we reveal that P. citreosulfuratum is the correct name for the clade previously considered to represent P. toxicarium fide Serra et al. (2008).The nine new species are: Penicillium atrolazulinum, P. consobrinum, P. cravenianum, P. hemitrachum, P. pagulum, P. repensicola, P. momoii, P. subturcoseum, and P. xanthomelinii spp. nov.

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Section: Discussionmentioning

confidence: 99%

A phylogenetic revision of Penicillium sect. Exilicaulis, including nine new species from fynbos in South Africa

et al. 2016

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“…ochrosalmoneum can produce citreoviridin in maize, and P . citreonigrum can produce citreoviridin in rice, and has been claimed to induce Beri-beri disease [ 3 , 13 , 14 – 17 , 19 , 83 – 84 , 86 ]. Of the species described here, P .…”

Section: Discussionmentioning

confidence: 99%

“…Morphological definition and recognition of Penicillium species has been contentious with one authority accepting either many more or many less species than another [ 1 , 4 ]. Biological species concepts (BSC) introduced the notion of gene pools and gene flow as a defining characters of species [ 19 ] but its implementation in fungi was hindered because many species are either exclusively asexual or have homothallic mating systems. A system for establishing species boundaries based on multi-locus DNA sequence concordance analysis was introduced for fungi [ 20 – 22 ], but like the BSC, concordance analysis is only appropriate in species with heterothallic mating systems.…”

Section: Introductionmentioning

confidence: 99%

Expanding the Species and Chemical Diversity of Penicillium Section Cinnamopurpurea

Peterson

Jurjević²,

Frisvad

2015

PLoS ONE

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A set of isolates very similar to or potentially conspecific with an unidentified Penicillium isolate NRRL 735, was assembled using a BLAST search of ITS similarity among described (GenBank) and undescribed Penicillium isolates in our laboratories. DNA was amplified from six loci of the assembled isolates and sequenced. Two species in section Cinnamopurpurea are self-compatible sexual species, but the asexual species had polymorphic loci suggestive of sexual reproduction and variation in conidium size suggestive of ploidy level differences typical of heterothallism. Accordingly we use genealogical concordance analysis, a technique valid only in heterothallic organisms, for putatively asexual species. Seven new species were revealed in the analysis and are described here. Extrolite analysis showed that two of the new species, P. colei and P. monsserratidens produce the mycotoxin citreoviridin that has demonstrated pharmacological activity against human lung tumors. These isolates could provide leads in pharmaceutical research.

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“…It is widely known that there is an active metabolism and dissemination of hyaline fungal hyphae inside substrates before the formation of visible colonies on the surface of food. During this period of visible fungus colony formation, there is a potential risk of consumer exposure to mycotoxins [193].…”

Section: Plos Onementioning

confidence: 99%

Categorisation of culturable bioaerosols in a fruit juice manufacturing facility

2021

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Bioaerosols are defined as aerosols that comprise particles of biological origin or activity that may affect living organisms through infectivity, allergenicity, toxicity, or through pharmacological or other processes. Interest in bioaerosol exposure has increased over the last few decades. Exposure to bioaerosols may cause three major problems in the food industry, namely: (i) contamination of food (spoilage); (ii) allergic reactions in individual consumers; or (iii) infection by means of pathogenic microorganisms present in the aerosol. The aim of this study was to characterise the culturable fraction of bioaerosols in the production environment of a fruit juice manufacturing facility and categorise isolates as harmful, innocuous or potentially beneficial to the industry, personnel and environment. Active sampling was used to collect representative samples of five areas in the facility during peak and off-peak seasons. Areas included the entrance, preparation and mixing area, between production lines, bottle dispersion and filling stations. Microbes were isolated and identified using 16S, 26S or ITS amplicon sequencing. High microbial counts and species diversity were detected in the facility. 239 bacteria, 41 yeasts and 43 moulds were isolated from the air in the production environment. Isolates were categorised into three main groups, namely 27 innocuous, 26 useful and 39 harmful bioaerosols. Harmful bioaerosols belonging to the genera Staphylococcus, Pseudomonas, Penicillium and Candida were present. Although innocuous and useful bioaerosols do not negatively influence human health their presence act as an indicator that an ideal environment exists for possible harmful bioaerosols to emerge.

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Toxigenic penicillia spoiling frozen chicken nuggets

Cited by 22 publications

References 21 publications

A phylogenetic revision of Penicillium sect. Exilicaulis, including nine new species from fynbos in South Africa

A phylogenetic revision of Penicillium sect. Exilicaulis, including nine new species from fynbos in South Africa

Expanding the Species and Chemical Diversity of Penicillium Section Cinnamopurpurea

Categorisation of culturable bioaerosols in a fruit juice manufacturing facility

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