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Study of the thermal behavior of bicuíba oil (Virola bicuhyba)

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Abstract

Bicuíba belongs to the Virola bicuhyba (Schott ex Spreng.) Warb species, Miristicaceas (Myristicaceae) family, which is frequently found in the Atlantic Forest of South and Southeast Brazil. Extraction of the Bicuíba oil was carried out and characterized by gas chromatography. The composition of in nature of this oil indicates that there is a predominance of saturated fatty acids with ~35 % lauric acid and ~40 % myristic acid. Details concerning the thermal behavior were evaluated by thermogravimetry, differential thermal analysis, and differential scanning calorimetry under oxygen and nitrogen atmospheres, showing thermal stability between 208 and 210 °C, respectively. Additionally, the kinetic studies were evaluated from several heating rates with a sample mass of 5 and 20 mg in open crucibles. The obtained data were evaluated with the isoconversional method kinetic, where the values of activation energy (E a/kJ mol−1) were plotted in function of the conversion degree (α).

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Acknowledgements

The authors wish to thank CAPES and FAPESP Foundation’s (Brazil) for financial support.

Conflict of interest

The authors and this Foundation have no conflict of interest in regards to this manuscript.

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Authors and Affiliations

  1. Centro Universitário do Norte Paulista, UNORP, São José do Rio Preto, SP, Brazil

    Marcelo Kobelnik & Almir Giovani Figueiredo

  2. Departamento de Nutrição, Faculdade de Saúde Pública, Universidade de São Paulo (FSP/USP), Av. Doutor Arnaldo 715, São Paulo, 01246-904, Brazil

    Gustavo Guadagnucci Fontanari & Rosana Aparecida Manólio Soares

  3. Departamento de Química Analítica, Instituto de Química, Unesp—Universidade Estadual Paulista, C.P. 355, Araraquara, SP, 14800-900, Brazil

    Clóvis Augusto Ribeiro

Authors
  1. Marcelo Kobelnik
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  2. Gustavo Guadagnucci Fontanari
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  3. Rosana Aparecida Manólio Soares
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  4. Almir Giovani Figueiredo
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  5. Clóvis Augusto Ribeiro
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Correspondence to Marcelo Kobelnik or Gustavo Guadagnucci Fontanari.

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Kobelnik, M., Fontanari, G.G., Soares, R.A.M. et al. Study of the thermal behavior of bicuíba oil (Virola bicuhyba). J Therm Anal Calorim 115, 2107–2113 (2014). https://doi.org/10.1007/s10973-013-3315-9

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  • DOI: https://doi.org/10.1007/s10973-013-3315-9

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