Darla Silveira Volcan Maia

ORCID: 0000-0003-3038-639X
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About
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Research Areas
  • Essential Oils and Antimicrobial Activity
  • Listeria monocytogenes in Food Safety
  • Salmonella and Campylobacter epidemiology
  • Antimicrobial agents and applications
  • Bacterial biofilms and quorum sensing
  • Food Safety and Hygiene
  • Agricultural and Food Sciences
  • Pharmaceutical and Antibiotic Environmental Impacts
  • Microbial Inactivation Methods
  • Microbial Metabolites in Food Biotechnology
  • Antimicrobial Resistance in Staphylococcus
  • Psidium guajava Extracts and Applications
  • Antimicrobial Peptides and Activities
  • Free Radicals and Antioxidants
  • Phytochemistry Medicinal Plant Applications
  • Sensory Analysis and Statistical Methods
  • Escherichia coli research studies
  • Coconut Research and Applications
  • Probiotics and Fermented Foods
  • Microencapsulation and Drying Processes
  • Nanocomposite Films for Food Packaging
  • Plant-Derived Bioactive Compounds
  • Proteins in Food Systems
  • Bee Products Chemical Analysis
  • Natural product bioactivities and synthesis

Universidade Federal de Pelotas
2017-2021

Departamento de Ciência e Tecnologia
2017-2021

Araçá (Psidium cattleianum Sabine) is a native fruit of South America, with high levels bioactive compounds as well antimicrobial potential. The aim this study was to evaluate the antibacterial activity hydroalcoholic extract araçá (HEA) against Staphylococcus aureus and its mechanism action. HEA showed S. aureus, inhibition halos 17 mm in diameter. minimum inhibitory concentration (MIC) bactericidal (MBC) values were 9 mg mL−1 18 mL−1, respectively. bacterial multiplication inhibited by...

10.1016/j.lwt.2019.108884 article EN publisher-specific-oa LWT 2019-11-24

Background: The main constituents of Cymbopogonnardus (L) Rendle and C. citratus (DC) Stapfessential oils are (R)-citronellal citral, respectively. Organochalcogen compounds can boost the biological activities natural products. Methods: Several chalcogen-containing nitrones derived from citral were prepared evaluated for their antimicrobial antioxidant activities. activity was by disc diffusion test properties in vitro DPPH (1,1-diphenyl-2-picryl-hydrazyl), ABTS...

10.3390/medicines4020039 article EN cc-by Medicines 2017-06-10

ABSTRACT The aims of this study were to evaluate the occurrence Listeria monocytogenes and Salmonella spp. in sliced cheese ham from retail markets southern Brazil, as well perform molecular characterization assess antimicrobial resistance profile isolates. Samples (n = 160) collected at level city Pelotas, Brazil. isolation L. was performed isolates confirmed by PCR, submitted susceptibility testing pulsed-field gel electrophoresis (PFGE). found 9.4% (15/160) samples. All positive for prs,...

10.1093/femsle/fnz249 article EN FEMS Microbiology Letters 2019-11-01

The aims of this study were to evaluate the ability Campylobacter jejuni isolated from a poultry slaughterhouse form biofilm in presence and absence Pseudomonas aeruginosa, effect surface (stainless steel, polystyrene), temperature (7, 25, 42 °C), oxygen concentration (microaerophilic aerobic conditions) on formation biofilm. genes ahpC, cadF, clpP, dnaJ, docA, flaA, flaB, katA, kpsM, luxS, racR, sodB, related by C. jejuni, also investigated. All isolates formed stainless steel polystyrene,...

10.1139/cjm-2020-0256 article EN Canadian Journal of Microbiology 2021-03-11
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