A5059411573- Probiotics and Fermented Foods
- Agricultural and Food Sciences
- Animal Nutrition and Physiology
- Food Safety and Hygiene
- Bee Products Chemical Analysis
- Meat and Animal Product Quality
- Mycotoxins in Agriculture and Food
- Protein Hydrolysis and Bioactive Peptides
- Microbial Inactivation Methods
- Listeria monocytogenes in Food Safety
- Sensory Analysis and Statistical Methods
- Essential Oils and Antimicrobial Activity
- Milk Quality and Mastitis in Dairy Cows
- Food composition and properties
- Microbial Metabolites in Food Biotechnology
- Breastfeeding Practices and Influences
- Gut microbiota and health
- Fermentation and Sensory Analysis
- Infant Nutrition and Health
- Antifungal resistance and susceptibility
- Salmonella and Campylobacter epidemiology
- Microencapsulation and Drying Processes
- Polysaccharides Composition and Applications
- Phytochemicals and Antioxidant Activities
- Microbial Metabolism and Applications
Universidade Federal Rural do Rio de Janeiro
2010-2025
Universidade Federal de Lavras
2007
University of Reading
1990-1993
Universidade Federal do Rio Grande do Sul
1993
Manuka honey is a well-known natural material from New Zealand, considered to have properties beneficial for burn treatment. Gels created polyvinyl alcohol (PVA) blended with polymers are potential burn-care dressings, combining biocompatibility high fluid uptake. Controlled release of manuka such materials possible strategy improving healing. This work aimed produce (PVA), PVA–sodium carboxymethylcellulose (PVA-CMC), PVA–gelatin (PVA-G), and PVA–starch (PVA-S) cryogels infused characterize...
Background: A challenge in choosing probiotic strains is to identify, each one, specific positive health effects offer a tailored product. An important claim of probiotics the competitive exclusion pathogens and consequent prevention treatment diarrhea. Objective: The aim study was evaluate ability lactobacilli adhere intestinal epithelial Caco-2 cells inhibit Salmonella adhesion vitro situ. Methods: biofilms by four Lacticaseibacillus paracasei, three rhamnosus, two Limosilactobacillus...
ABSTRACT: Probiotics are live microorganisms which, when administered in adequate amounts, confer a health benefit on the host. The aim of this study was to identify genotypically lactobacilli strains isolated from newborn stools and selecting strain based probiotic properties (gastrointestinal tolerance, antibiotic susceptibility, inhibition pathogen biofilm formation, absence alfa or gamma-blood hemolysis, lysozyme sensibility) technological surviving either ice cream bar ice-lolly....
In this study, a potentially postbiotic-containing preservative (PPCP) was produced in an axenic fermentation system with Lacticaseibacillus paracasei DTA 83 as natural technology alternative for vacuum-packaged cooked sausage preservation. Cooked sausage-related microorganisms were obtained during the induced spoiling process packages by pair incubation of sausages at different temperatures. The turbidity method used to determine microbiota susceptibility PPCP. A controlled situ design...
This study aimed to evaluate the use of potentially postbiotic-containing preservative (PPCP), produced in a semiculture fermentation system with Lacticaseibacillus paracasei DTA 83 and Saccharomyces cerevisiae var. boulardii 17, extend use-by date raw chicken sausages semifinished products. Microorganisms associated spoilage products were stimulated grow by pair incubation at two different temperatures collection times. The turbidity method was performed microbial susceptibility PPCP. PPCP...
Ochratoxin A is a metabolite produced by Aspergillus and Penicillium species that nephrotoxic possibly carcinogenic to humans. The aim of this study was evaluate ochratoxin contamination in green coffee obtained different harvesting drying operations from fruits ripening stages order identify hazards. research directed coffees the highland area Rio de Janeiro state (Brazil), which traded domestic market. Twenty-two out 54 samples contained at levels ranging 0.3 160 μg/kg. Ochatoxin between...
Sugarcane bagasse hydrolysate (initial acetic acid concentration = 3.5g/L), was used as a fermentation medium for conversion of xylose into xylitol by the yeast Candida guilliermondii FTI 20037. Acetic (2.0g/L) added to at different times fermentation, with aim evaluating its effects on bioconversion process. The addition after 12h resulted in strongest inhibition metabolism. In this case, consumption and cell growth were, respectively, 23.22 11.24% lower than when beginning fermentation. As...
L uchese , R.H. & H arrigan W.F. 1990. Growth of, and aflatoxin production by Aspergillus parasiticus when in the presence of either Lactococcus lactis or lactic acid at different initial pH values. Journal Applied Bacteriology 69 512–519. was grown a modified Lab‐Lemco tryptone broth both as single culture association with . Total (B1 + G1) higher mixed cultures. This stimulation persisted batches media, inoculation procedures makes ingredients were used. Aflatoxin yields increased...
This study evaluated the effect of honey addition on viability free and emulsion encapsulated cells two strains Bifidobacterium that underwent simulation human upper gastrointestinal transit. In control condition, without honey, were drastically reduced after exposure to conditions. The reduction was more pronounced with J7 origin. On other hand, when encapsulated, higher for strain Bb12. microencapsulation improved maintenance both strains, in recommended amounts probiotic activity,...
Para ser considerado prebiótico, um microrganismo deve atender a uma série de requisitos, sendo manutenção da viabilidade, dos principais. Culturas probióticas Lactobacillus spp. e Bifidobacterium foram cultivadas em leite pó desnatado reconstituído 12% adicionado 3% (p/v) mel pasteurizado. Foram preparados controles sem mel. Todos os cultivos mantiveram-se viáveis por 46 dias 7 °C atendendo o número mínimo exigido pela legislação. O maior células L. casei-01 casei Shirota (>9,0 log10...
Alginate hydrogels have many attractive characteristics for potential use as wound dressing materials. However, they are not considered to possess any intrinsic activity against microbial infection, often present in neuropathic wounds. To overcome this, the effect of incorporating neomycin or propolis alginate was investigated, both by direct blending alone and also further addition loaded microparticles prepared extrusion dripping method. The morphological, microstructural, thermal,...
Growth of Spirulina maxima was studied in three types culture conditions with four replicates each: 1) manual aeration natural sunlight; 2) artificial light; and 3) constant an aquarium compressor light. After 185 days incubation, growth declined the first two treatments, while third treatment, higher observed average optical density 3.7 against 1.8 1.9 second respectively. This probably due to fact that under salts were suspended avoiding crystallization what could cause a decrease...