• Publications
  • Influence
Antimicrobial isoflavanones from Desmodium canum.
Bioassay-directed fractionation of Desmodium canum resulted in the isolation and characterization of three antimicrobial isoflavonones. These compounds, namely, desmodianones A, B and C, wereExpand
Desaminoanthracyclines from the antibiotic complex ciclamycin.
Chemistry and pharmacology of a tertiary alkaloid from Strychnos trinervis root bark.
Bisnordihydrotoxiferine has been isolated as the major alkaloid from the root bark of Strychnos trinervis. This compound shows a wide antimicrobial spectrum against gram-positive, gram-negative andExpand
Molecular analysis of the iap gene of Listeria monocytogenes isolated from cheeses in rio grande do Sul, Brazil
The polymorphic region sequences in the iap gene were analyzed in 25 strains of Listeria monocytogenes isolated from cheeses in the state of Rio Grande do Sul, and compared with reference strains.Expand
[Antimicrobial substances of superior plants. 44. Isolation of diterpene acid from Croton aff. argyrophylloides Muell arg. (Euphorbiaceae)].
In this paper the authors present the first report concerning the biological effects of a diterpene isolated from Croton aff. argyrophylloides Muell. Arg (Euphorbiaceae). Some biological andExpand
New prenylated chalcones from Lonchocarpus neuroscapha Benth. (Cordoa piaca).
The isolation of eight prenylated chalcones (cordoin, isocordoin, psi-isocordoin, derricin, lonchocarpin, 4-hydroxyderricin, 4-hydroxylonchocarpin, 4-hydroxyisocordoin) and of the flavanone andExpand
[O and C prenylated chalcones with antineoplastic and antibiotic activities isolated from Lonchocarpus neuroscapha Benth].
In the course of our program on the antimicrobial and antineoplastic substances from higher plants we have studied many flavonoid compounds isolated from root back of Lonchocarpus neuroscapha Benth.Expand
Sanitary quality, occurrence and identification of Staphylococcus sp. in food services
Sanitary conditions are essential for the production of meals and control of the presence of pathogensis important to guarantee the health of customers. The aim of this study was to evaluate theExpand
Plants in traditional medicine in Brazil.
Brazil has a long tradition of popular medicine in its different geographical areas (Amazonas, highlands and coast) and different cultural groups (Aruak, Tupi, Guarani). Recently the documentation ofExpand