A5019784579- Food Safety and Hygiene
- Salmonella and Campylobacter epidemiology
- Botulinum Toxin and Related Neurological Disorders
- Viral gastroenteritis research and epidemiology
- Nanocomposite Films for Food Packaging
- Enterobacteriaceae and Cronobacter Research
- Agricultural and Food Sciences
- Antibiotic Resistance in Bacteria
- Meat and Animal Product Quality
- biodegradable polymer synthesis and properties
- Vibrio bacteria research studies
- Science and Education Research
- Listeria monocytogenes in Food Safety
- Phytochemicals and Antioxidant Activities
- Biotechnology and Related Fields
- Identification and Quantification in Food
- Education and Digital Technologies
- Ophthalmology and Eye Disorders
- Pesticide Residue Analysis and Safety
- Essential Oils and Antimicrobial Activity
- Helicobacter pylori-related gastroenterology studies
- Aquaculture disease management and microbiota
- Sensory Analysis and Statistical Methods
- Bacillus and Francisella bacterial research
- Streptococcal Infections and Treatments
National Institute of Health Dr. Ricardo Jorge
2012-2024
In the present study, RE presented higher antioxidant capacity and content of total phenolic compounds than GTE. While main identified in were carnosic acid, carnosol rosmarinic GTE catechins, rutin gallic acid identifies compounds. Extracts incorporated into PLA active films, followed by evaluation its properties. The potential films to extend foods shelf-life was tested almonds beef. PLA/4GTE highest water vapor permeability opacity, while PLA/4RE O2 permeability. PLA/2 at end 10 days (at...
Low-density polyethylene-based packaging with 4% lemon extract (LDPE/4LE) and two polylactic-based (PLA) materials 6% (PLA/PEG/4LE PLA/6LE) were produced. O2 water permeability tests performed, the total individual phenolic compounds content measured, films' antioxidant activities determined. The ability to delay lipid oxidation was tested in model foods: almonds, packaged LDPE/4LE, PLA/4LE PLA/6LE for a maximum period of 60 days at 40 °C (accelerated assay); beef meat, 11 4 °C. LE improved...
The search for new forms to extend foodstuffs’ shelf-life through the use of natural compounds and extracts continues grow among researchers industry. In this line thought, main objective work was develop, characterize evaluate effectiveness an active food packaging based on polylactic acid (PLA) incorporated with obtained from grape and/or pomegranate by-products. vitro, antioxidant methods were applied capacity three extracts: wort extract, freeze-dried peels extract (PPE-FD), (PPE-N)....
ABSTRACT Meat and meat products are important sources of human intestinal infections. We report the isolation Helicobacter pullorum strains from chicken meat. Bacteria were isolated 4 17 analyzed fresh samples, using a membrane filter method. MIC determination revealed that four showed acquired resistance to ciprofloxacin; one was also resistant erythromycin, another tetracycline. Whole-genome sequencing comparative genomics genetic traits within H. species, such as 18 highly polymorphic...
Salmonella enterica serovars Heidelberg and Minnesota frequently display several genetic mobile elements making them potential spreaders of resistance genes. Here, we phenotypically determined the antibiotic profile subsequently performed whole-genome sequencing on 36 isolates recovered from samples fresh poultry meat, within Portuguese Official Inspection Plan for Imported Foodstuffs. Several both showed high relatedness either with raw meat imported to Netherlands Brazil or broiler...
In this work, alpha-tocopherol (α-TOC) was encapsulated in poly(lactic acid) nanoparticles (PLA NPs) and added to low-density polyethylene (LDPE) films with the aim of producing an active film for food packaging applications. PLA NPs loaded α-TOC were produced through nanoprecipitation dried using two methods (freeze-dryer oven). LDPE-based final polymeric matrix concentrations 10 20 g/kg then blow extrusion. The results showed that can be extrusion, a good distribution obtained within LDPE...
Abstract Street food sector is an important component of the distribution system in many cities. However, foods exposed for sale on roadside are generally associated with conditions that favors its potential microbiological contamination. In this study, quality 118 ready-to-eat street sold metropolitan area Lisbon, Portugal was evaluated. Mesophilic aerobic bacteria, yeasts, moulds, Enterobacteriaceae and Escherichia coli were used as spoilage/hygiene indicators. Listeria monocytogenes,...
Human-wildlife coexistence may increase the potential risk of direct transmission emergent or re-emergent zoonotic pathogens to humans. Intending assess occurrence three important foodborne in wild animals two wildlife conservation centers Portugal, we investigated 132 fecal samples for presence
In October 2001, foodborne outbreaks (FBO) were included in the Portuguese alert and response surveillance system. Accordingly, northern regional health authority (Delegado Regional de Saude do Norte--DRSN) began a programme of outbreaks. This report is brief description data generated from this 2002. For each outbreak local Concelhio--DSC) produced written report. Fifty-nine percent 27 FBOs studied by DSCs during 2002 reported within 72 hours after date onset. Five hundred seventy seven...
Different ingredients in old recipes are becoming popular and the traditional <em>alheira</em> did not escape to this new trend. The objective of preliminary study was characterize microbiologically nine different formulations from five producers. In sense, isolates obtained were characterized through phenotypic biochemical tests. Their susceptibility antimicrobials presence virulence factors also investigated. Lactic acid bacteria predominant microbiota, but pathogenic as coagulase-positive...
Birds are potential carriers of pathogens affecting humans and agriculture. Aiming to evaluate the occurrence top three most important foodborne in free-living birds Portugal, we investigated 108 individual fecal samples from one pooled sample gull feces (n = 50) for presence Escherichia coli (pathogenic non-pathogenic), Salmonella spp. Campylobacter Virulence- antimicrobial resistance- (AMR) associated genes were detected by PCR Whole-Genome Sequencing (WGS), phenotypic (serotyping AMR...
To provide meat safety and consumer protection, appropriate hygiene control measures at an abattoir are required. This study aimed to evaluate the influence of visual fecal contamination level (VFCL) lairage time (LT) on pig skin (PS) external (ECS) internal (ICS) carcass surfaces. The presence
On 13 January 2004, the Autoridade de Saúde of Póvoa do Varzim in north Portugal was informed that several children and staff a school had become ill