Ângela Maria Fiorentini

ORCID: 0000-0003-3945-0079
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About
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Research Areas
  • Probiotics and Fermented Foods
  • Protein Hydrolysis and Bioactive Peptides
  • Meat and Animal Product Quality
  • Microbial Metabolites in Food Biotechnology
  • Essential Oils and Antimicrobial Activity
  • Agricultural and Food Sciences
  • Listeria monocytogenes in Food Safety
  • Food composition and properties
  • Food Safety and Hygiene
  • Biochemical Analysis and Sensing Techniques
  • Nanocomposite Films for Food Packaging
  • Salmonella and Campylobacter epidemiology
  • Microencapsulation and Drying Processes
  • Gut microbiota and health
  • Sensory Analysis and Statistical Methods
  • Animal Nutrition and Physiology
  • Insect Pest Control Strategies
  • Botanical Research and Applications
  • Phytochemicals and Antioxidant Activities
  • Digestive system and related health
  • Electrospun Nanofibers in Biomedical Applications
  • Aquaculture Nutrition and Growth
  • Microbial Metabolism and Applications
  • Advanced Chemical Sensor Technologies
  • Postharvest Quality and Shelf Life Management

Universidade Federal de Pelotas
2016-2025

Departamento de Ciência e Tecnologia
2002-2024

European Automobile Manufacturers Association
2023

Universidade Federal de Santa Catarina
2007-2023

Universidade Estadual de Campinas (UNICAMP)
2021

Weatherford College
2021

Universidade de Passo Fundo
2014

Universidade Regional do Noroeste do Estado do Rio Grande do Sul
2001-2011

The incorporation of antimicrobial compounds into natural polymers can promote increased shelf life and ensure food safety. aim this study was to evaluate the antibacterial activity, morphological, optical, mechanical, barrier properties corn starch films containing orange (Citrus sinensis var. Valencia) essential oil (OEO). were prepared using casting method. OEO incorporated with showed higher activity against Staphylococcus aureus Listeria monocytogenes. addition morphological...

10.1016/j.carbpol.2019.114981 article EN publisher-specific-oa Carbohydrate Polymers 2019-06-10

Bacteriocins are ribosomal-synthesized antimicrobial peptides that inhibit the growing of pathogenic and/or deteriorating bacteria. The most studied bacteriocin-producing microorganisms lactic acid bacteria (LAB), as they have great potential application in food biopreservation, since majority GRAS (Generally Recognized Safe) status. LAB-producing bacteriocins produced by these been widely studied, with emphasis on those derived from milk and dairy products. On other hand, isolates meat...

10.1155/2019/4726510 article EN cc-by Journal of Food Quality 2019-01-10

The aim of this study was to produce ultrafine fibers from zein incorporated with a complex eucalyptus essential oil (EEO) and β-cyclodextrin (β-CD) antimicrobial properties by electrospinning technique. EEO characterized chemical composition tests against three Gram positive four negative bacteria. inclusion (IC) prepared β-CD co-precipitation technique added at different concentrations in polymer solution using aqueous ethanol as solvent. morphology, thermal properties, functional groups,...

10.1016/j.ijbiomac.2017.06.095 article EN publisher-specific-oa International Journal of Biological Macromolecules 2017-06-24

The ultrafine fibers were produced using a polymeric blend of soy protein isolate (SPI), polyethylene oxide (PEO), and zein at ratio 1:1:1 (v/v/v) by electrospinning. ginger essential oil (GEO) was encapsulated in the morphology, Fourier-Transform Infrared Spectroscopy (FTIR) analysis, thermal properties relative crystallinity evaluated. antimicrobial activity evaluated against five bacteria (Listeria monocytogenes, Staphylococcus aureus, Escherichia coli 0157:H7, Salmonella typhimurium,...

10.1016/j.ijbiomac.2018.06.079 article EN publisher-specific-oa International Journal of Biological Macromolecules 2018-06-19

In this study, a method was developed to encapsulated carvacrol in nanofibers from soluble potato starch. The added starch solutions at various concentrations (0, 20, 30 and 40% v/v) electrospun into fibers. morphology, size distribution, thermal stability, FT-IR spectra, relative crystallinity (RC) antioxidant of the fibers were analyzed. For mechanical properties antimicrobial activities evaluation nonwovens obtain. carvacrol-loaded showed homogeneous morphology average diameters ranging...

10.1016/j.ijbiomac.2019.08.096 article EN publisher-specific-oa International Journal of Biological Macromolecules 2019-08-12

The aim of this study was to characterize the food safety aspects and enzymatic profile Staphylococcus xylosus LQ3 in vitro its influence curing process antioxidant capacity dried cured sausage. S. isolate susceptible all antimicrobials tested did not show any antimicrobial resistance genes. negative for hemolytic DNase activities. Moreover, no genes encoding alpha beta hemolysis or classical staphylococcal enterotoxins were identified. Enzymatic tests showed that presented lipolytic,...

10.1016/j.lwt.2017.08.045 article EN publisher-specific-oa LWT 2017-08-15

ABSTRACT The aim was to evaluate the probiotic properties and safety aspects of isolate Pediococcus pentosaceus P107 as well its tolerance survivability in a simulated gastrointestinal tract (GIT) environment viability during storage natural yogurt. vitro evaluation based on GIT tolerance, bile salt resistance, acidic conditions. were assessed using gelatinase, DNAse, hemolytic activity tests, antimicrobial susceptibility, cytotoxicity. functional yogurt prepared with microbiological,...

10.1111/jfs.70004 article EN Journal of Food Safety 2025-01-08

The aims of this study were to develop and characterize a fermented sausage produced with different percentages mutton (from adult female sheep, over four years old) additional native starter cultures. Three treatments prepared: (T1) 30% mutton; (T2) 60% (T3) 90% mutton. Starter cultures Staphylococcus xylosus LQ3 Pediococcus pentosaceus P38 used for the fermentation/maturation process. parameters aw, pH, acidity, weight loss, monitoring evaluated during fermentation maturation processes....

10.1016/j.lwt.2018.04.060 article EN publisher-specific-oa LWT 2018-04-23

The objective of this study was to determine the chemical composition as well antioxidant, antibacterial, and cytotoxic properties essential oil Mentha piperita L. (peppermint). Fifteen constituents were identified in oil, for a total 99.99% compounds. exhibited antimicrobial activity against two Gram-positive bacteria Staphylococcus aureus Listeria monocytogenes. minimum inhibitory concentration (MIC) monocytogenes 1.84 μg/ml, whereas bactericidal (MBC) values 3.7 7.43 respectively....

10.1080/15287394.2021.1999875 article EN Journal of Toxicology and Environmental Health 2021-11-15
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