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Articles by Ulysses Paulino de Albuquerque
Total Records ( 1 ) for Ulysses Paulino de Albuquerque
  Cecilia de Fatima Castelo Branco Rangel de Almeida , Daniela Lyra de Vasconcelos Cabral , Camila Castelo Branco Rangel de Almeida , Elba Lucia Cavalcanti de Amorim , Janete Magali de Araujo and Ulysses Paulino de Albuquerque
  Context: The idea that many commonly used medicinal plants may lead to the discovery of new drugs has encouraged the study of local knowledge of these resources. Objective: An ethnobotanical survey of species traditionally used for the treatment of infectious diseases was undertaken in two areas of northeastern Brazil: one in the Caatinga (dry forest) and another in the Atlantic Forest (humid forest). Materials: Initially, diffusion tests using paper disks and subsequently, for extracts presenting significant results (inhibition halos above 15 mm), minimum inhibitory concentrations were determined. The activity was evaluated as a percentage for each species, comparing the diameters of the inhibition halos and the number of positive results against the seven microorganisms studied. Extracts were classified into three categories: strong activity—species with halos exceeding 16 mm, moderate activity—species with halos between 13 mm and 15 mm and low activity—species with halos below 12 mm. We selected 34 species, 20 from the Caatinga and 14 from the Atlantic Forest. Results: In the Caatinga, 50% of the 20 plant extracts studied had strong antimicrobial activity, 25% had moderate activity and 15% had low activity. In the Atlantic Forest, 28.5% of the 14 plant extracts studied showed strong activity, with 14.5% having moderate activity and 28.5% having low activity. The microorganism that was most susceptible to the extracts from the Caatinga, was Mycobacterium smegmatis; 85% of the species tested were able to inhibit its growth. The organism that was susceptible to the highest number of plant species (71%) from the Atlantic Forest was Staphylococcus aureus. Discussion and conclusions: Extracts from the Caatinga showed a trend of superior antimicrobial activity compared to the species from the Atlantic Forest, in terms of both inhibiting a greater variety of microorganisms and demonstrating higher activity against susceptible strains.
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