Condições higiênico-sanitárias e de manejo de rebanhos leiteiros correlacionados à qualidade do leite cru refrigerado

Pós-graduação em Medicina Veterinária - FCAV

Farmacocinética da gentamicina asministrada pela via intravensa regional em equinos com a utilização de modelos de torniques

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Ocorrência, sorotipagem e rsistência antimicrobiana de Streptococcus suis em funcionários e ambente de abatedouro de sínos

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Resistência antimicrobiana e prevalência de sorovares de salmonella spp. isolados de fezes e linfonodos de suinos

Pós-graduação em Medicina Veterinária - FMVZ

Aspectos socioeconômicos, indicadores de qualidade do leite e pesquisa de linhagens toxigênicas de Staphylococcus em propriedades de agricultura familiar de Botucatu, SP

Pós-graduação em Medicina Veterinária - FMVZ

Diversidade bacteriana em solos, vinhaça e semicompostagem relacionados ao cultivo de cana-de-açúcar

Pós-graduação em Microbiologia Agropecuária - FCAV

Fitogênicos ou mono e diglicerídeos associados com ácidos orgânicos em dietas para leitões recém-desmamados

Pós-graduação em Zootecnia - FCAV

Green and brown propolis: efficient natural biocides for the control of bacterial contamination of alcoholic fermentation of distilled beverage

This study aimed to evaluate the efficiency of natural biocides, brown and green propolis, for the control of bacterial contamination in the production of sugarcane spirit. The treatments consisted of brown and green propolis extracts, ampicillin, and a control and were assessed at the beginning and end of harvest season in ten fermentation cycles. In the microbiological analyses, the lactic acid bacteria were quantified in the inoculum before and after the treatment with biocides, and the viability of yeast cells during fermentation was evaluated. The levels of acids, glycerol, total residual reducing sugars, and ethanol were analyzed for the wine resulting from each fermentation cycle. A reduction in the number of bacterial contaminants in the inoculum in the treatments with the natural biocides was observed, but it did not affect the viability of yeast cells. The control of the contaminants led to the production of higher levels of ethanol and reduced acidity in the wine produced. The results of the use of brown and green propolis to control the growth microorganisms in the fermentation of sugarcane spirit can be of great importance for using alternative strategies to synthetic antibacterials in fermentation processes including other distilled beverage or spirits.

Perfil de suscetibilidade, genes de resistência aos aminoglicosídeos e similaridade genética em amostras de Acinetobacter baumannii isoladas em um Hospital Terciário

Pós-graduação em Microbiologia - IBILCE

Análise químico-farmacêutica do ácido fusídico em formulações de creme

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Ocorrência de Escherichia coli resistente a antimicrobianos em diferentes sítios corporais em uma população diversa de gatos saudáveis

Pós-graduação em Microbiologia Agropecuária - FCAV

Small hospitals matter: insights from the emergence and spread of vancomycin-resistant enterococci in 2 public hospitals in inner Brazil

Although vancomycin-resistant enterococci (VRE) are reported in Brazil since 1996, data on their impact over settings of different complexity are scarce. We performed a study aimed at identifying determinants ofVRE emergence and spread in a public hospital consortium (comprising 2 hospitals, with 318 and 57 beds) in inner Brazil. Molecular typing and case-control studies (addressing predictors of acquisition or clonality) were performed. Among 122 authocthonous isolates, 106 were Enterococcus faecium (22 clones), and 16, Enterococcus faecalis (5 clones). Incidence was greater in the small-sized hospital, and a previous admission to this hospital was associated with greater risk of VRE colonization or infection during admission to the larger one. Overall risk factors included comorbidities, procedures, and antimicrobials (piperacillin-tazobactam, cefepime, and imipenem). Risk factors varied among different hospitals, species, and clones. Our findings demonstrate that VRE can spread within low-complexity facilities and from these to larger hospitals. (C) 2015 Elsevier Inc. All rights reserved.

High precision and selectivity for quantitation of enrofloxacin and ciprofloxacin in five chicken tissues using solid phase extraction and ESI LC-MS/MS for application in monitoring residues

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Phenotypic and genetic features of enteropathogenic Escherichia coli isolates from diarrheal children in the Ribeirao Preto metropolitan area, Sao Paulo State, Brazil

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

In vitro antibacterial and chemical properties of essential oils including native plants from Brazil against pathogenic and resistant bacteria

The antimicrobials products from plants have increased in importance due to the therapeutic potential in the treatment of infectious diseases. Therefore, we aimed to examine the chemical characterisation (GC-MS) of essential oils (EO) from seven plants and measure antibacterial activities against bacterial strains isolated from clinical human specimens (methicillin-resistant Staphylococcus aureus (MRSA) and sensitive (MSSA), Escherichia coli, Pseudomonas aeruginosa, Salmonella Typhimurium) and foods (Salmonella Enteritidis). Assays were performed using the minimal inhibitory concentration (MIC and MIC90%) (mg/mL) by agar dilution and time kill curve methods (log CFU/mL) to aiming synergism between EO. EO chemical analysis showed a predominance of terpenes and its derivatives. The highest antibacterial activities were with Cinnamomun zeylanicum (0.25 mg/mL on almost bacteria tested) and Caryophyllus aronzaticus EO (2.40 mg/mL on Salmonella Enteritidis), and the lowest activity was with Eugenia uniflora (from 50.80 mg/mL against MSSA to 92.40 mg/mL against both Salmonella sources and P aeruginosa) EO. The time kill curve assays revealed the occurrence of bactericide synergism in combinations of C. aromaticus and C. zeylanicum with Rosmarinus. officinalis. Thus, the antibacterial activities of the EO were large and this can also be explained by complex chemical composition of the oils tested in this study and the synergistic effect of these EO, yet requires further investigation because these interactions between the various chemical compounds can increase or reduce (antagonism effect) the inhibitory effect of essential oils against bacterial strains.