Research Publications (Food Safety)

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e-First Articles.

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Romina P. Salinas, Rodolfo M. Ortiz Flores, Jesús S. Distel, Milton O. Aguilera, María I. Colombo, Walter Berón

Christiane Maria Ayo, Ana Vitória da Silveira Camargo, Fábio Batista Frederico, Rubens Camargo Siqueira, Mariana Previato, Fernando Henrique Antunes Murata, Aparecida Perpétuo Silveira-Carvalho, Amanda Pires Barbosa, Cinara de Cássia Brandão de Mattos, Luiz Carlos de Mattos

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To gain an understanding of the growth kinetics of Staphylococcus aureus to ensure the safety of pork, and to develop a predictive growth model of S. aureus in raw pork, ham, and sausage pork under specific storage time and temperature conditions.

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To elucidate an entry site of staphylococcal enterotoxin A (SEA), which is a major toxin for staphylococcal foodborne poisoning, into gastrointestinal tissue using a house musk shrew model.

Salmonella is a human pathogen that can accompany live broilers to the slaughter plant, contaminating fully processed carcasses. Feed is one potential source of Salmonella to growing broilers. Monitoring feed for the presence of Salmonella is part of good agricultural practice. The first step in culturing feed for Salmonella (which may be at low numbers and sub-lethally stressed) is to add it to a pre-enrichment broth which is incubated for 24 h.

Poultry litter is commonly used as fertilizer in agriculture. However, this poultry litter must be processed prior to use, since poultry have a large number of pathogenic microorganisms. The aims of this study were to isolate and genotypically and phenotypically characterize Escherichia coli from avian organic fertilizer. Sixty-four E.

Soybean hulls are a by-product of soybean processing for oil and meal production; Pleurotus eryngii stalk residues (PESR) are by-products of the edible portion of the fruiting body enriched in bioactive metabolites. This study evaluated the effects of co-fermented PESR and soybean hulls with Aureobasidium pullulans on performance and intestinal morphology in broiler chickens.

Listeria monocytogenes is capable of infecting almost all animals. However, outbreaks of listeriosis are infrequent in birds. This report describes an outbreak of listeriosis in a small pheasant (Phasianus colchicus) breeder farm with more than 2,000 pheasants from Hubei province of the People's Republic of China. The affected flock consisted of adult and young birds. Approximately 300 young birds and a few adult birds were found dead within a few days of the onset of clinical signs.

This study was conducted to examine the effects of fructooligosaccharide (FOS) supplementation on growth performance, lymphoid organ weight, intestinal morphology, and immunological status in broilers (n = 180) challenged with Salmonella Enteritidis lipopolysaccharides (LPS).

C. Quance et al.

Total arsenic (As) and inorganic As (Asi) in milled rice (n = 1653) collected from China were studied to evaluate the contamination level, distribution, and health risks. The mean concentrations of the total As and Asi were 116.5 and 90.9 μg/kg, respectively. There were significant differences (P < 0.01) between the 11 provinces, and 1.1% of samples exceeded the maximum contaminant level established by Chinese legislation.

Publication date: May 2016
Source:LWT - Food Science and Technology, Volume 68

Author(s): Xuan Weng, Jan van Niekerk, Suresh Neethirajan, Keith Warriner

e-First Articles.

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Pathogenicity islands (PAIs) are mobile integrated genetic elements (MIGEs) that contain a diverse range of virulence factors and are essential in the evolution of pathogenic bacteria. PAIs are widespread among bacteria and integrate into the host genome, commonly at a tRNA locus, via integrase mediated site-specific recombination. The excision of PAIs is the first step in the horizontal transfer of these elements and is not well understood.

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