Artículos de revistas
Thermogravimetric Analysis Of Long Pepper (piper Hispidinervium C.dc.) Essential Oil [análise Termogravimétrica Do óleo Essencial De Pimenta Longa (piper Hispidinervium C. Dc)]
Registro en:
Acta Amazonica. , v. 41, n. 2, p. 275 - 278, 2011.
445967
10.1590/S0044-59672011000200012
2-s2.0-79956346597
Autor
Cremasco M.A.
Nazareno B.P.
Institución
Resumen
Long pepper (Piper hispidinervium C. DC.) is a shrub found in the Amazon region, which supplies an essential oil rich in safrole. Normally, long pepper essential oil is commercialized in natura, which makes its processing a fundamental step in scientific and technological investigation. An important step of safrole commercialization is the separation of essential oil by, for example, a distillation process. In such a case it is important to know some thermodynamics parameters, such as energy of activation and enthalpy of vaporization. The present study was aimed at applying the kinetic of zero order evaporation process for the essential oil of P. hispidinervum by thermogravimetric analysis. The thermal analysis data were utilized to determine the energy of activation and enthalpy of vaporization, which resulted in the values 41.11 kJ.mol-1 and 43.73 kJ.mol-1, respectively. 41 2 275 278 Hazra, A., Dollimore, D., Alexander, K., Thermal analysis of the evaporation of compounds used in aromatherapy using thermogravimetry (2002) Thermochimica Acta, 392, pp. 221-229 Hazra, A., Alexander, K., Dollimore, D., Riga, A., Characterization of some essential oils and their key components (2004) Journal of Thermal Analysis and Calorimetry, 75, pp. 317-330 Leiva, R.R.C., Crnkovic, P.M., Santos, A.M., O emprego da termogravimetria para determinar a energia de ativação do processo de combustão em óleos combustíveis (2006) Química Nova, 29 (5), pp. 940-946 Nascimento, F.R., Cardoso, M.G., Souza, P.E., Lima, R.K., Salgado, A.P.S., Guimarães, Efeito do óleo essencial de pimento longa (Piper hispidinervum C. DC) e do Emulsificante Tween® 80 sobre o crescimento micelial de Alternaria alternata (Fungi: Hyphomycetes) (2008) Acta Amazonica, 38 (3), pp. 503-508 Navickiene, H.M.D., Alécio, A.C., Kato, M.J., Bolzani, V.S., Young, M.C.M., Cavalheiro, A.J., Furlan, M., Antifungal amides from Piper hispidum and Piper tuberculatum (2000) Phytochemistry, 55 (6), pp. 621-626 Price, D.M., Hawkins, M., Calorimetry of two disperse dyes using thermogravimetry (1998) Thermochimica Acta, 315, pp. 19-24 Silva, E.C., Paola, M.V.R.V., Matos, J.R., Análise térmica aplicada à cosmetologia (2007) Revista Brasileira De Ciências Farmacêuticas, 43 (3), pp. 347-356 Zacaroni, L.M., Cardoso, M.G., Souza, P.E., Pimentel, F.A., Guimarães, L.G., Salgado, A.P.P., Potencial fungitóxico do óleo essencial de Piper hispidinervum (pimenta longa) sobre os fungos fitopatogênicos Bipolaris sorokiniana, Fusarium oxysporum e Colletotrichum gloeosporioides (2009) Acta Amazonica, 39 (1), pp. 193-198