Abstracts - Sean dos Santos Araújo



Sean dos Santos Araújo1, Luis F. M. Costa1, Artur da Silva Cruz1, João B. Fernandes1, Moacir R. Forim1, Maria Fátima G. F. Silva1, Paulo C. Vieira1,

1Dep. Quím., Univ. Fed. de S. Carlos – UFSCar, Rod. Washington Luís, Km 235- SP-310, CEP 13565-905, São Carlos, SP, Brasil. Email: djbf@ufscar.br.

Correspondence: djbf@ufscar.br

The world population has been steadily increasing, implying the need to increase the production of food, juices, biofuels, among others for the survival of the humanity. Brazil is a continental country with an appropriate climate for many agricultural practices and one of the largest producers of these inputs. Agribusiness in Brazil currently accounts for 25% of Gross Domestic Product and is responsible for placing Brazil as a leader among emerging nations. Insects are generally considered to be pests in agriculture, being the major competitors of man in relation to food. They are also vectors of several diseases that affect humans, herds and plants. In this way, the efficient control of insect plagues and, in particular, the leaf-cutting ants is an important goal to be achieved. The search for methods to obtain and determine natural bioactive compounds may lead to the identification of insect-specific insecticides. The main subject of this communication is the use of Chromatography Counter Current to obtain fast natural compounds that can be used in the control of leaf-cutting ants. There are studies in extracts of species of Picramnia and Toona that are very likely to present active compounds in the control of leaf-cutting ants. NMR spectral analysis indicates the presence of anthrones, oxanthones, coumarins, anthraquinones, triterpenes, glycosylated flavonoids and steroids, as well as polysaccharides as their main constituents of Picramnia extracts.

Sao Paulo Research Foundation - FAPESP - Proc. 2012/25299-6