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  • 1 Centro Universitário do Norte Paulista, UNORP, São José do Rio Preto, SP, Brazil
  • | 2 Departamento de Química Analítica, Instituto de Química, Unesp – Univ. Estadual Paulista, C.P. 355, Araraquara, SP, 14800-900, Brazil
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Abstract

The jerivá is a well-known fruit, which belongs to the Arecaceae family, Syagrus romanzoffiana species frequently found in Brazil. Extraction of the jerivá oil was carried out, and the fatty acid profile of this oil indicates the linoleic and oleic acid presence, around 29.35 and 28.89%, respectively. Thermogravimetry (TG), derivative thermogravimetry (DTG), and differential scanning calorimetry (DSC) were used to characterize this oil. Additionally, this oil was evaluated by DSC from 25 to −80 °C, and the crystallization behavior was verified. Details concerning the thermal behavior as well as data of kinetic parameters of these stages have been described here. The obtained data were evaluated, and the values were plotted in activation energy (Ea/kJ mol−1) in function of the conversion degree (α).

  • 1. Olmos, F, Pardini, R, Boulhousa, RLP, Bürgi, R, Morsello, C. Do tapirs steal food from palm seed predators or give them a lift?. Biotropica. 1999;31:375379. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 2. Silva, FR, Begnini, RM, Klier, VA, Scherer, KZ, Lopes, BC, Castellani, TT. Syagrus romanzoffiana (Arecaceae) seed utilization by ants in a secondary forest in South Brazil. Neotrop Entomol. 2000;38:875.

    • Search Google Scholar
    • Export Citation
  • 3. Kobelnik, M, Bernabé, GA, Ribeiro, CA, Capela, JMV, Fertonani, FL. Kinetic of decomposition of iron (III)-diclofenac compound. J Therm Anal Calorim. 2009;97:493496. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 4. Kobelnik M , Cassimiro DL, Ribeiro CA, Dias DS, Crespi MS. Preparation of the Ca-diclofenac complex in solid state: study of the thermal behavior of the dehydration, transition phase and decomposition. J Therm Anal Calorim. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 5. Capela, JMV, Capela, MV, Ribeiro, CA. Nonisothermal kinetic parameters estimated using nonlinear regression. J Math Chem. 2009;45:769775. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 6. Souza, JL, Kobelnik, M, Ribeiro, CA, Capela, JMV. Kinetics study of crystallization of PHB in presence of hydrociacids. J Therm Anal Calorim. 2009;97:525528. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 7. Kobelnik, M, Quarcioni, VA, Ribeiro, CA, Capela, JMV, Dias, DS, Crespi, MS. Thermal behavior in solid state of Zn(II)-diclofenac complex: dehydration, transition phase and thermal decomposition. J Chin Chem Soc. 2010;57:384390.

    • Search Google Scholar
    • Export Citation
  • 8. American Oil Chemists Society (AOCS). Official methods and recommended practices of the American Oil Chemists’ Society, 1997.

  • 9. Tan, CP, Che Man, YB. Comparative differential scanning calorimetric analysis of vegetable oils: effects of heating rate variation. Phytochem Anal. 2002;13:129141. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 10. Kotti, F, Chiavaro, E, Cerretani, L, Barnaba, C, Gargouri, M, Bendini, A. Chemical and thermal characterization of Tunisian extra virgin olive oil from Chetoui and Chemlali cultivars and diVerent geographical origin. Eur Food Res Technol. 2009;228:735742. .

    • Crossref
    • Search Google Scholar
    • Export Citation

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