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Evaluation of the phenolic profile of Castanea sativa mill. By-products and the...
Silva, Vanessa; Falco, Virgílio; Dias, Maria Inês; Barros, Lillian; Silva, Adriana; Capita, Rosa; Alonso-Calleja, Carlos; Amaral, Joana S.The chestnut industry generates a large amount of by-products. These agro-industrial wastes have been described as potential sources of phenolic compounds with high bioactive potential. Therefore, we aimed to extract the phenolic compounds from chestnut by-products and assess their antioxidant potential and evaluate their antimicrobial activity against multidrug resistant bacteria. The individual phenolic compo...
High efficacy of ozonated oils on the removal of biofilms produced by methicill...
Silva, Vanessa; Peirone, Cecília; Amaral, Joana S.; Capita, Rosa; Alonso-Calleja, Carlos; Marques-Magallanes, José A.; Martins, Ângela; Carvalho, Águeda© 2020 by the authors. Ozone has a high wound healing capacity and antibacterial properties and can be used as a complementary treatment in infections. Methicillin-resistant S. aureus (MRSA) is the most common pathogen found in infected diabetic foot ulcers. Most of MRSA are resistant to several classes of antibiotics and, therefore, there is a need for new, effective, and well-tolerated agents. Thus, we aimed ...
Genetic characterization of methicillin-resistant staphylococcus aureus isolate...
Silva, Vanessa; Hermenegildo, Sara; Ferreira, Catarina; Manaia, Celia M.; Capita, Rosa; Alonso-Calleja, Carlos; Carvalho, Isabel; Pereira, José EduardoIn this study we aimed to characterize antimicrobial resistance in methicillin-resistant Staphylococcus aureus (MRSA) isolated from bloodstream infections as well as the associated genetic lineages of the isolates. Sixteen MRSA isolates were recovered from bacteremia samples from inpatients between 2016 and 2019. The antimicrobial susceptibility of these isolates was tested by the Kirby–Bauer disk diffusion met...
Comparative insight upon chitosan solution and chitosan nanoparticles applicati...
Silva, Vanessa; Singh, Rupesh Kumar; Gomes, Nelson; Soares, Bruno Gonçalves; Silva, Adriana; Falco, Virgílio; Capita, Rosa; Alonso-Calleja, CarlosChitosan, a natural polysaccharide, has been previously proposed as an elicitor in plants to prevent pathogen infections. The present study aimed to analyze the e ect of chitosan solution and chitosan nanoparticles treatment applied on the grapevine variety Sousão with respect to the phenolic composition, antioxidant potential and antibacterial activity of its individual grape components. Grapevine plants of se...