10 documents found, page 1 of 1
Phenolic Compounds from Pyrus communis Residues: Mechanisms of Antibacterial Ac...
Ribeiro, Jessica; Silva, Vanessa; Igrejas, Gilberto; Barros, Lillian; Heleno, Sandrina A.; Reis, Filipa S.; Poeta, PatríciaThe food industry produces substantial amounts of fruit byproducts, which are often discarded despite their high content of bioactive compounds with potential therapeutic applications. Pyrus communis (pear) residues, which are particularly rich in phenolic compounds, represent a valuable yet underutilized resource. These byproducts have demonstrated significant antioxidant and antibacterial properties, suggesti...
From Apple Waste to Antimicrobial Solutions: A Review of Phenolics from PGI ‘Ma...
Ribeiro, Jessica; Silva, Vanessa; Dapkevicius, Maria de Lurdes N. E.; Igrejas, Gilberto; Barros, Lillian; Heleno, Sandrina A.; Reis, Filipa S.Apple by-products represent a valuable source of phenolic compounds with significant antimicrobial potential, aligning with sustainable strategies for waste valorisation within the circular bioeconomy. This review focuses on the phenolic profile and antimicrobial relevance of ‘Maçã de Alcobaça,’ a Protected Geographical Indication (PGI) apple variety from Portugal. The main phenolics identified include phloridz...
Genomic Analysis of Antibiotic Resistance and Virulence Profiles in Escherichia...
Ribeiro, Jessica; Silva, Vanessa; Freitas, Catarina; Pinto, Pedro; Vieira-Pinto, Madalena; Batista, Rita; Nunes, Alexandra; Gomes, João PauloSternal bursitis is an underexplored lesion in poultry, often overlooked in microbiological diagnostics. In this study, we characterized 36 Escherichia coli isolates recovered from sternal bursitis in broiler chickens, combining phenotypic antimicrobial susceptibility testing, PCR-based screening, and whole genome sequencing (WGS). The genetic analysis revealed a diverse population spanning 15 sequence types, i...
Genetic Complexity of CC5 Isolates Associated with Sternal Bursitis in Chickens...
Silva, Vanessa; Ribeiro, Jessica; Teixeira, Pedro; Pinto, Pedro; Vieira-Pinto, Madalena; Poeta, Patrícia; Caniça, Manuela; Igrejas, GilbertoSternal bursitis, a common inflammatory condition in poultry, poses significant challenges to both animal welfare and public health. This study aimed to investigate the prevalence, antimicrobial resistance, and genetic characteristics of isolates associated with sternal bursitis in chickens. Ninety-eight samples were collected from affected chickens, and 24 isolates were identified. Antimicrobial susceptibility...
Development, characterization and stability of a novel sport drink based on the...
Radhouane, Maroua Fatma; Silveira, Tayse F. F. da; Ribeiro, Jessica; Rodrigues, Paula; Guimarães, Rafaela; Calhelha, Ricardo C.; Mandim, FilipaIsotonic drinks are sports beverages that replenish minerals and rapidly absorbable carbohydrates. We proposed to surpass traditional formulations of isotonic drinks by integrating thermal water, which remains unexploited as a source of electrolytes in isotonic despite the high mineral content. The novel formula combined thermal water with apple juice and hibiscus extract (as sources of sugars and color, respec...
Screening of chemical composition, antimicrobial and antioxidant activities in ...
Silva, Vanessa; Silva, Adriana; Ribeiro, Jessica; Aires, Alfredo; Carvalho, Rosa Paula; Amaral, Joana S.; Barros, Lillian; Igrejas, GilbertoAntimicrobial resistance is increasing globally and is now one of the major public health problems. Therefore, there is a need to search for new antimicrobial agents. The food industry generates large amounts of by-products that are rich in bioactive compounds, such as phenolic compounds, which are known to have several health benefits, including antioxidant and antimicrobial properties. Thus, we aimed to chara...
Antibiotic resistance among gastrointestinal bacteria in broilers: a review foc...
Ribeiro, Jessica; Silva, Vanessa; Monteiro, Andreia; Vieira-Pinto, Madalena; Igrejas, Gilberto; Reis, Filipa S.; Barros, Lillian; Poeta, PatríciaSimple Summary Chicken meat has become one of the most consumed meats worldwide, and antibiotics have been used to ensure high levels of production. However, antibiotic usage in animal production has contributed to the development of antibiotic-resistant bacteria, largely among intestinal microbiota. Enterococcus spp. and Escherichia coli are frequently found in the gastrointestinal tract of chickens, and the p...
Platanus hybrida’s phenolic profile, antioxidant power, and antibacterial activ...
Ribeiro, Jessica; Silva, Vanessa; Aires, Alfredo; Carvalho, Rosa Paula; Barros, Lillian; Gaivão, Isabel; Igrejas, Gilberto; Poeta, PatríciaMethicillin-resistant S. aureus (MRSA) are a threat to public health as they frequently reveal a multidrug-resistant pattern. Researchers all over the world are on an urgent hunt for new treatments to help fight infections before antibiotics become obsolete, and some natural alternatives, such as polyphenols, have already exhibited therapeutic properties. Therefore, this study aimed to determine the phenolic pr...
High frequency of the EMRSA-15 clone (ST22-MRSA-IV) in hospital wastewater
Silva, Vanessa; Ribeiro, Jessica; Rocha, Jaqueline; Manaia, Célia M.; Silva, Adriana; Pereira, José Eduardo; Maltez, Luís; Capelo, José LuisHospital wastewaters often carry multidrug-resistant bacteria and priority pathogens, such as methicillin-resistant Staphylococcus aureus (MRSA). Pathogens and antibiotic resistance genes present in wastewaters may reach the natural environment facilitating their spread. Thus, we aimed to isolate MRSA from wastewater of 3 hospitals located in the north of Portugal and to characterize the isolates regarding the ...
Glycopolymer Brushes by Reversible Deactivation Radical Polymerization: Prepara...
Ribeiro, Jessica; Mendonça, Patrícia V.; Coelho, Jorge; Matyjaszewski, Krzysztof; Serra, Arménio C.The cellular surface contains specific proteins, also known as lectins, that are carbohydrates receptors involved in different biological events, such as cell-cell adhesion, cell recognition and cell differentiation. The synthesis of well-defined polymers containing carbohydrate units, known as glycopolymers, by reversible deactivation radical polymerization (RDRP) methods allows the development of tailor-made ...