30Sep 2017


  • Facultad Polit?cnica, Universidad Nacional de Asunci?n, San Lorenzo, Paraguay, P.O. Box 2111SL.
  • Centro para el Desarrollo de la Investigaci?n Cient?fica-CEDIC (FMB/D?az Gill Medicina Laboratorial), Manduvir? 635, Asunci?n, Paraguay.
  • Laborat?rio de Tecnologia de P?s, Divis?o de Processamento e Caracteriza??o de Materiais, Instituto Nacional de Tecnologia, Av. Venezuela, 82/602, Rio de Janeiro (RJ), Brasil.
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Natural and modified kaolinite minerals are widely used in industrial applications and environmental protection, in particular, sorbent processes. The aim of this work consists in proposing an alternative application for the kaolinite as a slow release device of pheromone benzaldehyde. Porous kaolinite pellets were produced by uniaxial compression molding under a pressure of 145 MPa, approximately. The pellets were sintered at 900oC and characterized by X-ray diffraction (XRD), Energy Dispersive X-ray fluorescence spectroscopy (EDX) and Fourier transform infrared spectroscopy (FTIR). Afterwards, these pellets were impregnated with benzaldehyde, a synthetic pheromone used to attract kissing bugs. The pellets were analyzed by FTIR, after the impregnation process, in order to verify the presence of the sorbed benzaldehyde. In addition, bioassays were performed in laboratory scale, on T. infestans nymphs and adults for evaluating the maximum release period and the attractant efficiency of pellets using impregnated pellets and control ones. The results of the release of benzaldehyde analysis showed existence of benzaldehyde after sixty days and the results of bioassays release showed more effectiveness in attraction of adult insects than nymph instars, suggesting that the porous kaolinite pellets are a promising alternative in trap system applications in the vector control to T. infestans, using benzaldehyde.

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[M. Monteiro, A. Matos, S. Aquino, F. Gaona, C. Schaerer, F. Arias, D. Dorigo, M.C. Vega, A. Rojas de Arias, A. A. Ribeiro and M. Varella. (2017); PRODUCTION AND CHARACTERIZATION OF POROUS KAOLINITE MODIFIED PELLETS FOR SLOW RELEASE PHEROMONE. Int. J. of Adv. Res. 5 (9). 1718-1725] (ISSN 2320-5407). www.journalijar.com

Magna Monteiro
Facultad Politécnica, Universidad Nacional de Asunción, San Lorenzo.


Article DOI: 10.21474/IJAR01/5499       DOI URL: http://dx.doi.org/10.21474/IJAR01/5499

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