3 documents found, page 1 of 1
Increase in biofilm formation by Escherichia coli under conditions that mimic t...
Costa,João Carlos Miguel; Espeschit,Isis de Freitas; Pieri,Fábio Alessandro; Benjamin,Laércio Anjos; Moreira,Maria Aparecida ScatamburloBacterial biofilms are involved in the aggravation and recurrence of clinical mastitis in dairy herds. Several factors such as pH, temperature, concentration of O2 and glucose can affect their induction and growth rates. In this study, biofilm production was demonstrated by 27 Escherichia coli strains isolated from bovine mastitis at different pH values depending on the availability of glucose, mimicking condit...
Bacteriostatic effect of copaiba oil (Copaifera officinalis) against Streptococ...
Pieri,Fábio Alessandro; Mussi,Maria Carolina Martins; Fiorini,João Evangelista; Moreira,Maria Aparecida Scatamburlo; Schneedorf,José MauricioThis study evaluated the inhibitory activity of copaiba oil (Copaifera officinalis against the cariogenic microorganism, Streptococcus mutans. For such purpose, a minimum inhibition concentration test of copaiba oil against S. mutans was performed, using the serial dilution in broth technique, with a negative control, a positive control (0.12% chlorhexidine) and a 10% copaíba oil solution as a test. A minimum b...
Antimicrobial activity of autoclaved and non autoclaved copaiba oil on Listeria...
Pieri,Fábio Alessandro; José,Raphaela Mansur; Galvão,Newton Nascentes; Nero,Luis Augusto; Moreira,Maria Aparecida ScatamburloThe aim of this study was to evaluate the antimicrobial effect of different copaiba oil concentrations against the growth of Listeria monocytogenes, and analyze differences in inhibition of microorganisms with autoclaved and non autoclaved oil. This study provided an agar diffusion test with six isolates of bacteria and six different concentrations of autoclaved or non autoclaved copaiba oil and a negative cont...