September 2014

Anatomy, histochemistry and chemical characterization of the essential oil of the gum tree Vochysia pyramidalis Mart

The Gomeira (Vochysia pyramidalis Mart.), belonging to the family Vochysiaceae, is a plant species from the Brazilian cerrado used in folk medicine because of its reputedly anti-inflammatory, analgesic and anti-bacterial properties. However, scientific data concerning this species are scarce. Therefore, the aim of the present study was to conduct an anatomical and histochemical assessment of this plant...

Author(s): Gessiane Silva Cabral Guimaraes, Fabiula Gomes de Morais Ribeiro, Flávia Dionisio Pereira, Sebastiao Carvalho Vasconcelos Filho, Fabiano Guimaraes Silva and  Adriane da Silveira Gomes

September 2014

Antibacterial activity of tannins from Psidium guineense Sw. (Myrtaceae)

The aim of this study was to quantify and evaluate the antibacterial activity of tannins extracted from leaves of Psidium guineense, obtained using two different isolation methods, against Staphylococcus aureus and Pseudomonas aeruginosa. The first extraction method was used to isolate condensed tannins (Method A) and the second to isolate mixtures rich in esters of gallic acid and glucose (Method B). Both extraction...

Author(s): Rodrigues, C. G., Ferreira, P. R. B., Mendes, C. S. O., Reis-Jr, R., Valerio, H. M., Brandi, I. V., & de Oliveira, D. A.

September 2014

Effect of extracts from field and in vitro plants of Petiveria alliacea L. on plasmidial DNA

Petiveria alliacea L. is a native herbaceous species from the Amazon region traditionally used in folk medicine for its various pharmacological activities. This study aimed to perform a comparative assessment of genotoxic and antigenotoxic potential of field- and in vitro-grown plants. Specimens from different populations from Rio de Janeiro State were used as donor plants for in vitro culture on...

Author(s): Soares B. O., Oliveira M. B. N., Mansur E., Dantas F.J.S., De Mattos J. C. P., Caldeira-de-Araujo A. and Gagliardi R. F.