A5048781360- Nanocomposite Films for Food Packaging
- Bacterial biofilms and quorum sensing
- Dental materials and restorations
- Advanced Cellulose Research Studies
- Dental Erosion and Treatment
- Nanoparticles: synthesis and applications
- Meat and Animal Product Quality
- Antimicrobial agents and applications
- Essential Oils and Antimicrobial Activity
- Antibiotic Resistance in Bacteria
- HIV/AIDS oral health manifestations
- Oral and gingival health research
- Helicobacter pylori-related gastroenterology studies
- Probiotics and Fermented Foods
- Postharvest Quality and Shelf Life Management
- Microencapsulation and Drying Processes
- Animal Nutrition and Physiology
- Food Safety and Hygiene
- Infections and bacterial resistance
- Microplastics and Plastic Pollution
- Listeria monocytogenes in Food Safety
- Identification and Quantification in Food
- Protein Hydrolysis and Bioactive Peptides
- Orthodontics and Dentofacial Orthopedics
- Galectins and Cancer Biology
Universidade Católica Portuguesa
2011-2024
Pontifícia Universidade Católica de São Paulo
2023
Active substances such as zinc oxide nanoparticles (ZnO) have been extensively explored due to their antimicrobial properties, low cost and scalability. Yet, effectiveness is highly dependent on morphology specific surface area. Bacterial nanocellulose (BNC) a suitable carrier its ability transport deliver active substances. In the case of nanocellulose-ZnO composites, conclusions drawn from studies are often based only few representatives Gram-positive Gram-negative bacteria. A more...
Zinc oxide nanoparticles (ZnO) are cost-effective antimicrobial agents with great potential for the active packaging industry. Bacterial NanoCellulose (BNC) features a porous fibre network, high absorption capacity, flexible and good mechanical properties, suitable as carrier of agents. In this work, BNCZnO films were developed optimized regarding particle size ZnO concentration. The NaOH dropwise addition to BNC membranes immersed in Zn(CH3COO)2-PVOH enabled production an z-average 144 nm...
Foodborne diseases are of major concern as they have a significant impact on public health, both socially and economically. The occurrence cross-contamination food in household kitchens is serious threat the adoption safe practices paramount importance. This work aimed to study effectiveness durability commercial quaternary ammonium compound-based surface coating which, according manufacturer, retains its antimicrobial activity for 30 days, suitable all types hard surfaces prevention and/or...
Abstract Background: The human gastroduodenal pathogen, Helicobacter pylori , is characterized by an unusual extent of genetic heterogeneity. This dictates differences in the antigenic pattern strains resulting heterogeneous humoral immune responses. Here, we examined variability among a group 10 isolated from Portuguese patients differing age, gender, and H. ‐associated gastric diseases. Material Methods: Immunoassays were performed on two‐dimensional electrophoresis gels obtained for...
Due to the increasing consciousness of a healthy diet and pursuit convenience among consumers, market for fresh fruit is on rise, melon most welcome fruits its sensory attributes nutritional properties. Consumption safety cut remains an issue concern that may affect public health. This study aimed perform microbiological characterisation melon, Cucumis melo L. var. “Piel de Sapo”, by retailers, wrapped in plastic cling film kept at room temperature local shops. In addition, possible transfer...
Abstract Seafood is an essential component of a balanced and healthy diet, which increases its demand. However, biological composition high moisture content make these products extremely perishable. To prevent spoilage, the consequent food waste financial expenses throughout seafood supply chain, new technologies have been successfully developed to inhibit bacterial growth, main cause spoilage. This work aimed test shelf life extension technique for skewers whilst maintaining all-natural...
BNCZnO composites were developed and characterized, the Zn migration assessed using food simulants (ethanol 10, 20 50%v/v) chicken skin as a model. Finally, antimicrobial properties of on also investigated.Small ZnO nanoparticles (≈144 nm) with low polydispersity index (≈0.139) successfully produced, high incorporation (27% mZnO/mBNCZnO) homogeneous distribution inside BNC, by dropwise addition NaOH, to Zn(CH3COO)2-PVOH solution an immersed BNC membrane, followed drying. Low levels observed...