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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Optimization of Oil Oxidation by Response Surface Methodology and the Application of this Model to Evaluate Antioxidants

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Author(s):
Branco, Gabriel Favalli [1] ; Castro, Inar Alves [1]
Total Authors: 2
Affiliation:
[1] Univ Sao Paulo, Dept Food & Expt Nutr, Fac Pharmaceut Sci, BR-05508900 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY; v. 88, n. 11, p. 1747-1758, NOV 2011.
Web of Science Citations: 7
Abstract

The oxidative stability of oils is a complex process influenced by several factors, making the evaluation of antioxidant effects of new compounds difficult. Thus, the objective of this study was to apply a factorial design to obtain the combination of factors that maximizes the formation of oil oxidation products, and use this model to evaluate the antioxidant activity of different compounds. Temperature, Fe(2+) and ascorbyl palmitate were evaluated in two full-factorial designs (2(3) and 3(2)). The validated optimized oxidation model was obtained by adding 1.47 mmol/L of Fe(2+) and 1.54 mmol/L of ascorbyl palmitate to flaxseed oil stripped of tocopherol kept at 40 A degrees C for 8 days. Antioxidant activities of six compounds were evaluated using this model. All antioxidant samples were statistically different (p < 0.001) at 200 ppm concentration, indicating the efficiency of the optimized model to evaluate the antioxidant action of natural and synthetic compounds. (AU)

FAPESP's process: 08/09296-1 - Use of factorial designs to develop a model to evaluate oil and emulsion oxidation.
Grantee:Inar Castro Erger
Support Opportunities: Regular Research Grants