Abstract
The kinetic study of the thermal oxidative rancidification of extra-virgin olive oils at 98 °C carried out according to the A.O.M. (American Oxygen Method - official method) of the A.O.C.S. (American Oil Chemistry Society) was completed. The orders of magnitude for the values of the kinetic rate constant k (10 – 4 min – 1) for this process, the activation energy Ea (38 kJ mol – 1) and the reaction order n (1st order) were definitively established. A best model mechanism for the main processes occurring during oil rancidification was also proposed. The same procedure was successfully extended also to two other olive oil types: olive oil and olive oil residue.
Keywords: Extra-virgin olive oil, Olive oil, Olive oil residue, Thermal oxidative rancidification, A.O.M. method, Kinetic rate constant, Activation energy, Reaction order, Superoxide Dismutase (SOD) Biosensor, Tyrosinase OPEE, ORAC Spectrofluorimetric Method
Current Analytical Chemistry
Title: Biosensors and Other More Traditional Methods for the Development of Kinetic Models to Describe the Isothermal Rancidification Process in Several Kinds of Olive Oils
Volume: 7 Issue: 3
Author(s): Mauro Tomassetti, Stefano Vecchio and Luigi Campanella
Affiliation:
Keywords: Extra-virgin olive oil, Olive oil, Olive oil residue, Thermal oxidative rancidification, A.O.M. method, Kinetic rate constant, Activation energy, Reaction order, Superoxide Dismutase (SOD) Biosensor, Tyrosinase OPEE, ORAC Spectrofluorimetric Method
Abstract: The kinetic study of the thermal oxidative rancidification of extra-virgin olive oils at 98 °C carried out according to the A.O.M. (American Oxygen Method - official method) of the A.O.C.S. (American Oil Chemistry Society) was completed. The orders of magnitude for the values of the kinetic rate constant k (10 – 4 min – 1) for this process, the activation energy Ea (38 kJ mol – 1) and the reaction order n (1st order) were definitively established. A best model mechanism for the main processes occurring during oil rancidification was also proposed. The same procedure was successfully extended also to two other olive oil types: olive oil and olive oil residue.
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Cite this article as:
Tomassetti Mauro, Vecchio Stefano and Campanella Luigi, Biosensors and Other More Traditional Methods for the Development of Kinetic Models to Describe the Isothermal Rancidification Process in Several Kinds of Olive Oils, Current Analytical Chemistry 2011; 7 (3) . https://dx.doi.org/10.2174/1573411011107030207
DOI https://dx.doi.org/10.2174/1573411011107030207 |
Print ISSN 1573-4110 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-6727 |
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