Authors:
P. S. Epaminondas Programa de Pós-Graduação em Ciência e Tecnologia de Alimentos, CT, Universidade Federal da Paraíba, Campus I, João Pessoa, PB, 58051-970, Brazil
Instituto Federal de Educação, Ciência e Tecnologia (IFPB), Campus Sousa, Sousa, PB, 58800-970, Brazil

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K. L. G. V. Araújo Programa de Pós-Graduação em Ciência e Tecnologia de Alimentos, CT, Universidade Federal da Paraíba, Campus I, João Pessoa, PB, 58051-970, Brazil

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J. A. Nascimento Programa de Pós-Graduação em Ciência e Tecnologia de Alimentos, CT, Universidade Federal da Paraíba, Campus I, João Pessoa, PB, 58051-970, Brazil

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M. C. D. Silva Centro de Ciências Sociais, Saúde e Tecnologia, Universidade Federal do Maranhão, Campus II, Imperatriz, MA, 65901-000, Brazil

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R. Rosenhaim Departamento de Química, Laboratório de Combustíveis e Materiais (LACOM), CCEN, Universidade Federal da Paraíba, Campus I, João Pessoa, PB, 58059-900, Brazil

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L. E. B. Soledade Departamento de Química, Laboratório de Combustíveis e Materiais (LACOM), CCEN, Universidade Federal da Paraíba, Campus I, João Pessoa, PB, 58059-900, Brazil

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N. Queiroz Departamento de Química, Laboratório de Combustíveis e Materiais (LACOM), CCEN, Universidade Federal da Paraíba, Campus I, João Pessoa, PB, 58059-900, Brazil

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A. L. Souza Departamento de Química, Laboratório de Combustíveis e Materiais (LACOM), CCEN, Universidade Federal da Paraíba, Campus I, João Pessoa, PB, 58059-900, Brazil

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I. M. G. Santos Departamento de Química, Laboratório de Combustíveis e Materiais (LACOM), CCEN, Universidade Federal da Paraíba, Campus I, João Pessoa, PB, 58059-900, Brazil

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A. G. Souza Departamento de Química, Laboratório de Combustíveis e Materiais (LACOM), CCEN, Universidade Federal da Paraíba, Campus I, João Pessoa, PB, 58059-900, Brazil

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Abstract

Physico-chemical properties, spectroscopy, and thermal analyses were used aiming at evaluating the influence of toasting and of the flaxseed variety on thermo-oxidative behavior of flaxseed oils. Thermogravimetry (TG) and differential scanning calorimetry (DSC) were associated to gas chromatography, infrared spectroscopy and UV–Vis spectroscopy, as well as to physico-chemical analyses to characterize the oils obtained from raw and toasted flaxseeds. No meaningful differences in the thermal and oxidative stabilities were noticed comparing oils obtained from the brown and the golden flaxseeds. Nevertheless, the UV–Vis spectra indicated that both flaxseed oils were at the beginning of the oxidation process. The previous toasting of the seeds led to a higher oxidation for both varieties being harmful to the flaxseed oil quality.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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