Ochratoxin A (OTA) is a mycotoxin produced by fungi species belonging to the genera spp. and spp. The proliferation of OTA-producing fungal species may occur due to inadequate practices during both the pre-harvest and post-harvest stages of feed.
View Article and Find Full Text PDFIn the global processed seafood industry, disparate actors play different roles along the supply chain, creating multiple opportunities for mistakes, malpractice, and fraud. As a consequence, consumers may be exposed to non-authentic products, which hinder informed purchasing decisions and broader efforts to improve trade transparency and sustainability. Here, we characterised the taxonomic composition of 62 processed seafood products in Italian, British and Albanian retailers, purposefully obtained from different supply routes, using multiple DNA metabarcoding markers.
View Article and Find Full Text PDFMicroplastics (MPs) are a relevant threat to food safety because they are ingested by humans through various foods. Bivalves are at high risk of microplastic contamination due to their filter-feeding mechanism and pose a risk to consumers as they are ingested whole. In this work, microplastics were detected, quantified, identified, and classified in samples of mussels () and oysters () marketed in the Apulia region.
View Article and Find Full Text PDFThe absence of morphological identification characters, together with the complexity of the fish supply chain make processed seafood vulnerable to cases of species substitution. Therefore, the authentication and the traceability of such products play a strategic role in ensuring quality and safety. The aim of the present study was to detect species used in the production of multi-species fish burgers and to evaluate mislabelling rates, using a DNA metabarcoding approach by sequencing a fragment of the 16S rRNA mitochondrial gene.
View Article and Find Full Text PDFGiven that the number of foodborne illness outbreaks linked to the consumption of ready-to-eat vegetables has been widely documented and considering that data on the occurrence of spp. in such foodstuffs are lacking, the aim of the present study was to evaluate the presence of spp. and the occurrence of virulence factors as well as to genotype spp.
View Article and Find Full Text PDFGiven that the global shark meat market is poised to grow in future years, the aim of this study was to use DNA sequencing of the cytochrome c oxidase I (COI) and NADH dehydrogenase subunit 2 (NADH2) mitochondrial genes to examine the market of shark meat products in Italy. This made it possible to analyze patterns of species utilization and commercialization of threatened, endangered and/or prohibited species, focusing on fraudulent activities in the shark food chain in order to propose seafood safety and environmental sustainability solutions. The study shows that the labeling of shark meat products generally lacks comprehensive information, thus making it difficult for consumers to make informed purchasing decisions and fails to comply with European Union (EU) legislation regarding seafood labelling.
View Article and Find Full Text PDFIn this study the phenotypic and genomic characterization of two Arcobacter butzleri (Ab) strains (Ab 34_O and Ab 39_O) isolated from pre-cut ready-to-eat vegetables were performed. Results provided useful data about their taxonomy and their overall virulence potential with particular reference to the antibiotic and heavy metal susceptibility. These features were moreover compared with those of two Ab strains isolated from shellfish and a genotaxonomic assessment of the Ab species was performed.
View Article and Find Full Text PDFis an emerging pathogenic microorganism, whose taxonomy has been recently suggested to be emended to the comb. nov. Despite extensive taxonomic analysis, only few fragmented studies have investigated the occurrence and the prevalence of virulence and antibiotic resistance determinants of this species in strains isolated from shellfish.
View Article and Find Full Text PDFAiV-1 is considered an emerging human enteric pathogens and foodborne transmission has been documented as an important source of exposure for humans, chiefly in relation to non-safe, risky food habits. We surveyed the presence of AiV-1 in retail shellfish, including oysters and mussles, identifying the virus in 3/170 (1.8%) of the analysed samples.
View Article and Find Full Text PDFConsidering that mislabeled milk products have been widely reported throughout the world and that the authentication of food components is one of the key issues in food safety and quality, the aim of this study was to use DNA-based methods to investigate the prevalence of mislabeling among goat-milk products and, consequently, how far the ingredients matched the labels. The study reveals a high degree of species mislabeling in milk products (80%), underlining the need to enhance dairy traceability practices, so as to guarantee product authenticity, and provide reliable information to consumers.
View Article and Find Full Text PDFSlaughter by Jewish religious rite is the killing of an animal by cutting the trachea and oesophagus and major blood vessels using a very sharp blade. This operation is subject to strict rules laid down by religious authorities that characterize its sacredness. The aim of the study was to evaluate the specific criteria inherent in the Jewish religious rite, by analysing reject rates during the different phases.
View Article and Find Full Text PDFGiven that changes in consumer food behaviours have led to an increase in the demand for pre-cut ready-to-eat (RTE) vegetables, and that few data are currently available on the occurrence of Arcobacter spp. in such foods, the aim of the present study was to assess the occurrence of Arcobacter spp. that carry virulence-associated genes on pre-cut RTE vegetables, using cultural and molecular methods.
View Article and Find Full Text PDFConsidering that several recent cases of human gastroenteritis have been associated with species from the Arcobacter genus, and that few data are currently available about the occurrence of this genus in Italian shellfish, the aim of the present study was to evaluate the occurrence of Arcobacter spp. and the presence of virulence-associated genes. The approach consisted of cultural and biomolecular (multiplex-PCR and 16S-RFLP) methods identifying isolates, followed by PCR assays aimed at the cadF, ciaB, cjl349, irgA, hecA putative virulence genes.
View Article and Find Full Text PDFGiven the increase in the international trade of packaged frozen fishery products, this study used DNA barcoding to investigate the breaded hake and plaice species, sold in Italian markets. The results of this study generally matched the ingredient list on the food label. Only 6 of the 120 samples were non-compliant.
View Article and Find Full Text PDFFish authentication is a major concern not only for the prevention of commercial fraud, but also for the assessment of safety risks deriving from the undeclared introduction of potentially dangerous toxic or allergenic substances or environmentally damaging fish where endangered species are involved. Moreover, food authentication might affect the diet of certain groups of consumers, such as followers of religious practices. Considering the authentication of fish products is one of the key issues in food safety, quality and sustainability, the aim of this work was to investigate the prevalence of mislabelling in sole (), plaice (), Atlantic salmon (), and hake () fillets from markets and supermarkets located in Apulia (Southern Italy) using DNA barcoding.
View Article and Find Full Text PDFThe health and vigour of honeybee colonies are threatened by numerous parasites (such as and spp.) and pathogens, including viruses, bacteria, protozoa. Among honeybee pathogens, viruses are one of the major threats to the health and well-being of honeybees and cause serious concern for researchers and beekeepers.
View Article and Find Full Text PDFConsidering that the authentication of food contents is one of the most important issues for the food quality sector, and given the increasing demand for transparency in the meat industry followed the horsemeat scandal in Europe, this study investigates processed-meat products from Italian markets and supermarkets using the mitochondrial cytochrome b gene qualitative PCR identification system in order to verify any species substitution or mislabeling. The results revealed a high substitution rate among the meat products, highlighting a mislabeling rate of 57 %, and consequently, considerable discordance with the indications on the labels, which raises significant food-safety and consumer-protection concerns.
View Article and Find Full Text PDFThe aim of the study was to evaluate the occurrence of spp. in 20 samples of purchased at fish markets in Apulia region. The detection of spp.
View Article and Find Full Text PDFProtothecosis is a potential zoonotic disease associated with bovine mastitis which can be transmitted to humans through contaminated milk. Considering the increasing prevalence of bovine mastitis due to Prototheca species, individual cow milk samples were analyzed using microbiological examination and biomolecular assay. Aspects related to health requirements for milk production, clinical and histological bovine mastitis were also described.
View Article and Find Full Text PDF