- Sesquiterpenes and Asteraceae Studies
- Phytochemistry Medicinal Plant Applications
- Probiotics and Fermented Foods
- Essential Oils and Antimicrobial Activity
- Milk Quality and Mastitis in Dairy Cows
- Natural product bioactivities and synthesis
- Plant Toxicity and Pharmacological Properties
- Oral microbiology and periodontitis research
- Listeria monocytogenes in Food Safety
- Salmonella and Campylobacter epidemiology
- Bacterial biofilms and quorum sensing
- Agricultural and Food Sciences
- Antimicrobial Peptides and Activities
- Identification and Quantification in Food
- Food Safety and Hygiene
- Pharmaceutical and Antibiotic Environmental Impacts
- Nitric Oxide and Endothelin Effects
- Meat and Animal Product Quality
- Ethnobotanical and Medicinal Plants Studies
- Education during COVID-19 pandemic
- Nuts composition and effects
- Escherichia coli research studies
- Microbial Inactivation Methods
- Antibiotic Resistance in Bacteria
- Viral gastroenteritis research and epidemiology
Universidade Federal de Juiz de Fora
2014-2022
Universidade Federal de Viçosa
2009-2015
Fundação Oswaldo Cruz
2012-2015
Universidade de São Paulo
2014
Este trabalho teve como objetivo realizar uma revisão de literatura sobre o gênero Copaifera sp. Foi realizado levantamento bibliográfico do período 1792 a 2008 utilizando bibliotecas da Universidade São Paulo, Federal Viçosa, Alfenas e José Rosário Vellano, pesquisas às bases dados SCOPUS PubMed, além ferramentas busca na web. Utilizou-se para palavras chave "Copaiba", "Copaifera", "Copaíba oil" "Óleo Copaíba". Como resultado desta pesquisa obteve-se seleção 63 referências incluindo livros,...
Shigellosis is a global human health problem and the incidence highest among children. In present work, main Shigella virulence genes was examined by PCR compared to symptoms of pediatric shigellosis. Thirty isolates were identified from an etiologic study at which 1,339 children ranging 0–10 years old enrolled. S. flexneri most frequent species reaching 60.0% isolates, 22.2% sonnei , 6.6% both dysenteriae boydii . All infected had diarrhea, but not all accompanied others bacillary...
Multi-drug resistant forms of Pseudomonas aeruginosa (MDRPA) are a major source nosocomial infections and when discharged into streams rivers from hospital wastewater treatment plants (HWWTP) they known to be able persist for extended periods. In the city Manaus (Western Brazilian Amazon), effluent three HWWTPs feed urban Mindu stream which crosses its rainforest before draining Rio Negro. The is routinely used by residents bathing cleaning (of clothes as well domestic utensils) and, during...
Periodontal disease is a highly prevalent illness that affects many dogs, reaching up to 85 % prevalence in individuals over the age of 4 years. Currently drug choice for combating formation dental plaque these animals, etiologic agent disease, chlorhexidine, which has several side effects reported. Thus, surveys are conducted throughout world order identify potential substitutes antimicrobial therapy and prevention periodontal disease. The objective work was evaluate activity...
A cárie de radiação é uma complicação odontológica severa em pacientes submetidos à radioterapia para o tratamento neoplasias cabeça e pescoço. Caracteriza-se por rápida progressão das lesões, afetando principalmente as superfícies cervicais incisais dos dentes, com um padrão destruição distinto da convencional. Este estudo tem como objetivo revisar a literatura sobre etiologia, manifestações clínicas, epidemiologia, estratégias prevenção abordagens terapêuticas radiação. patogênese envolve...
This study evaluated the inhibitory activity of copaiba oil (Copaifera officinalis against cariogenic microorganism, Streptococcus mutans. For such purpose, a minimum inhibition concentration test S. mutans was performed, using serial dilution in broth technique, with negative control, positive control (0.12% chlorhexidine) and 10% copaíba solution as test. A bactericidal tubes presenting microbial also conduced. In test, showed bacterial growth at all concentrations tested up to 0.78 µL/mL...
Copaiba trees are common to Latin America and West Africa being found in Brazil the Southeast, Midwest, Amazon.The exudate of these is a oil-resin, which has been used as defense against parasites for over 500 years many therapeutic purposes Brazilian traditional popular forestry medicine.Today it one most important natural comercial products North exported United States, France, Germany England (Veiga Junior Pinto, 2002).This oil-resin composed resinous fraction, consisting diterpene acids,...
O potencial de uso do óleo copaíba (Copaifera officinalis) na prevenção da doença periodontal, eliminando seu agente etiológico, foi avaliado em 18 cães sem raça definida, distribuídos homogeneamente três grupos: teste, (contendo copaíba) controle positivo e negativo. Os tratamentos ocorreram vezes ao dia, durante oito dias. Ao nono os animais receberam aplicação tópica fucsina básica 0,5% para evidenciação biofilme. Mudanças halitose gengivite foram avaliadas diariamente por inspeção...
Mastitis is an inflammation of the mammary gland that causes major losses in dairy industry. Streptococcus spp. are among main agents this disease. Increased resistance to antibiotics one therapeutic failure. Plants, due their broad chemodiversity, interesting source new molecules with antibacterial activity. Using these compounds along traditional a possible method for reversing resistance. The objective work was determine interactions between activities guttiferone-A and 7-epiclusianone,...
Honeys are described possessing different properties including antimicrobial. Many studies have presented this activity of honeys produced by Apis mellifera bees, however activities stingless bees scarce. The aim study was to compare the antimicrobial collected in Amazonas State from Melipona compressipes, seminigra and against Staphylococcus aureus, Enterococcus faecalis, Escherichia coli, Chromobacterium violaceum, Candida albicans. Minimum inhibitory concentrations were determined using...
The aim of this study was to evaluate the antimicrobial effect different copaiba oil concentrations against growth Listeria monocytogenes, and analyze differences in inhibition microorganisms with autoclaved non oil. This provided an agar diffusion test six isolates bacteria or a negative control. results showed sensitivity five L. monocytogenes related 10% solution Four strains also 5% one 2.5% solution. only for two strains. These had pointed higher as all other solutions tested...
Bacterial biofilms are involved in the aggravation and recurrence of clinical mastitis dairy herds. Several factors such as pH, temperature, concentration O2 glucose can affect their induction growth rates. In this study, biofilm production was demonstrated by 27 Escherichia coli strains isolated from bovine at different pH values depending on availability glucose, mimicking conditions found mammary glands affected disease. Biofilm formation analyzed spectrophotometric analysis microtiter...
The bacterial pathogen most commonly associated with endemic forms of childhood diarrhoea is Escherichia coli. Studies epidemiological characteristics HEp-2 cell-adherent E. coli in diarrhoeal disease are required, particularly developing countries. aim this study was evaluate the presence and significance adherent from children. prevalence LA, AA, DA adherence patterns were determined cells, virulence genes O serogroups samples obtained 470 children acute 407 controls Porto Velho, Rondônia,...
The aim of this study was to evaluate the antimicrobial effect two different copaiba oils against Escherichia coli obtained from mastitic milk. An assay performed using an agar diffusion test, testing three solutions: a negative control and solutions oils. This test with 27 E. isolates. Eight isolates (29.63%) were inhibited by C. langsdorffii oil solution seven officinalis oil. results present in vitro suggest that may be potential sources new selective agents for treatment mastitis,...
This study aimed to assess raw milk consumption habits in the urban population of Viçosa, Minas Gerais, Brazil, and microbiological safety quality fluid available retail sales outlets same region. A simplified questionnaire regarding was applied persons responsible for food acquisition 411 residences. The regular observed by 18.5% interviewers, lack knowledge possible risks related this product. Microbiological were assessed (n=69), pasteurized (n=80), ultra-high-temperature (UHT)-treated...
The occurrence of antibodies to Mycobacterium avium subsp. paratuberculosis (MAP) was verified in dairy cattle from Espirito Santo state. A total 1,450 serum samples were analyzed for anti-MAP, using ELISA. Dairy cattle, males and females, four regions state used. One hundred sixty-five (11.4%) positive 33 (2.3%) considered suspicious, 1,252 (86.3%) negative. In all regions, seropositive animals found, indicating that the agent is spread by State, posing a threat local farming neighboring...
The present study aimed to assess the performance of alternative protocols enumerate lactic acid bacteria (LAB) in salami. Fourteen cultures and two mixed starter were plated using six protocols: 1) Petrifilm™ Aerobic Count (AC) with MRS broth chlorophenol red (CR), incubated under aerobiosis or 2) anaerobiosis, 3) agar CR, 4) bromocresol purple, 5) at pH 5.7, 6) All Purpose Tween agar. Samples salami obtained LAB microbiota was enumerated by plating according 1, 2, 3 5. Regression analysis...
Periodontal disease, which affects the support structures and protection of teeth, is main disease found in dogs, reaching about 85% prevalence animals over 4 years old. The most important bacteria initial colonization human dental plaque are <i>Streptococcus</i>, produce exopolysaccharides that facilitate fixation to surfaces. Some studies have sought identify microbiota dogs using non-selective culture media, reported small amounts however they did not provide ideal conditions for growth...
Escherichia coli é um micro-organismo altamente adaptativo e sua habilidade em formar biofilmes pode ser fundamental na resistência a tratamentos com antimicrobianos. A avaliação da concentração mínima inibitória (CMI) vem sendo utilizada para verificar sensibilidade dos micro-organismos aos Entretanto, quando se avaliam células sésseis, do antimicrobiano requerido erradicação biofilme maior que determinada pela CMI. Objetivou-se comparar as CMI concentrações mínimas de (CMEB)...