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Thermal degradation kinetics of carotenoids in palm oil

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Abstract
In the present work, a detailed study is performed for carotene thermal degradation in palm oil at four temperatures ranging from 170 to 230 degrees C. The heating process was carried out with injection of nitrogen, and the samples were collected every 20 min during a total heating period of 140 min. HPLC analysis was conducted to monitor the carotenoids and tocols variations over the heating time at each temperature. The experimental data were then compared to literature data concerning carotenoids thermal degradation. The thermal degradation kinetics of carotenoids in palm oil followed an order superior to 1. The dependence of constant rates with temperature obeyed the Arrhenius relationship. The activation energy for the carotenoids thermal degradation in palm oil was found to be 109.4 kJ/mol.
Keywords
Activation energy, Carotenes, Reaction order, Palm oil, Vegetable oils, BETA-CAROTENE, ALPHA-TOCOPHEROL, ANTIOXIDANT SYNERGISM, OXIDATION, LUTEIN, ACID

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Chicago
Araujo Sampaio, Klicia, Jose V Ayala, Simone Monteiro e Silva, Roberta Ceriani, Roland Verhé, and Antonio JA Meirelles. 2013. “Thermal Degradation Kinetics of Carotenoids in Palm Oil.” Journal of the American Oil Chemists Society 90 (2): 191–198.
APA
Araujo Sampaio, K., Ayala, J. V., Monteiro e Silva, S., Ceriani, R., Verhé, R., & Meirelles, A. J. (2013). Thermal degradation kinetics of carotenoids in palm oil. JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 90(2), 191–198.
Vancouver
1.
Araujo Sampaio K, Ayala JV, Monteiro e Silva S, Ceriani R, Verhé R, Meirelles AJ. Thermal degradation kinetics of carotenoids in palm oil. JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY. 2013;90(2):191–8.
MLA
Araujo Sampaio, Klicia, Jose V Ayala, Simone Monteiro e Silva, et al. “Thermal Degradation Kinetics of Carotenoids in Palm Oil.” JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY 90.2 (2013): 191–198. Print.
@article{4086559,
  abstract     = {In the present work, a detailed study is performed for carotene thermal degradation in palm oil at four temperatures ranging from 170 to 230 degrees C. The heating process was carried out with injection of nitrogen, and the samples were collected every 20 min during a total heating period of 140 min. HPLC analysis was conducted to monitor the carotenoids and tocols variations over the heating time at each temperature. The experimental data were then compared to literature data concerning carotenoids thermal degradation. The thermal degradation kinetics of carotenoids in palm oil followed an order superior to 1. The dependence of constant rates with temperature obeyed the Arrhenius relationship. The activation energy for the carotenoids thermal degradation in palm oil was found to be 109.4 kJ/mol.},
  author       = {Araujo Sampaio, Klicia and Ayala, Jose V and Monteiro e Silva, Simone and Ceriani, Roberta and Verh{\'e}, Roland and Meirelles, Antonio JA},
  issn         = {0003-021X},
  journal      = {JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY},
  keyword      = {Activation energy,Carotenes,Reaction order,Palm oil,Vegetable oils,BETA-CAROTENE,ALPHA-TOCOPHEROL,ANTIOXIDANT SYNERGISM,OXIDATION,LUTEIN,ACID},
  language     = {eng},
  number       = {2},
  pages        = {191--198},
  title        = {Thermal degradation kinetics of carotenoids in palm oil},
  url          = {http://dx.doi.org/10.1007/s11746-012-2156-1},
  volume       = {90},
  year         = {2013},
}

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