Evaluation of the quality of pet foods using fast techniques and official methods

This paper was designed to evaluate the rancidity of 18 pet food samples using the Diamed FATS kits and official AOCS methods for the quantification of free fatty acids, peroxide value and concentrations of malonaldehyde and alkenal in the lipid extracted. Although expiration dates have passed, the samples presented good quality evidencing little oxidative rancidity. The results of this study suggest that the Brazilian pet food market is replete with products of excellent quality due to the competitiveness of this market sector.

[1]  R. J. Hamilton,et al.  Analysis of Oils and Fats , 1986 .

[2]  M. Gordon.  Bailey's industrial oil and fat products , 1997 .

[3]  J. Kennedy,et al.  Food Chemistry (2nd Edition) , 2003 .

[4]  L. Gonçalves,et al.  Correlation between free fatty acids of vegetable oils evaluated by rapid tests and by the official method , 2007 .

[5]  J. S. Swinehart.  Organic chemistry. An experimental approach , 1971 .

[6]  Margaret J. Robertson,et al.  Design and Analysis of Experiments , 2006, Handbook of statistics.

[7]  J. Piñol,et al.  Influencia de la tecnología en el valor nutritivo de los alimentos: I. Proteínas , 1989 .

[8]  M. Dobarganes,et al.  Analysis of lipid hydroperoxides , 2002 .

[9]  Cibele Cristina Osawa,et al.  Teste de TBA aplicado a carnes e derivados: métodos tradicionais, modificados e alternativos , 2005 .

[10]  R. Fessenden,et al.  Techniques and Experiments for Organic Chemistry , 1983 .

[11]  P. White.  Conjugated Diene, Anisidine Value, and Carbonyl Value Analyses , 1995 .

[12]  W. C. Guenther,et al.  Analysis of variance , 1968, The Mathematical Gazette.

[13]  J. I. Gray,et al.  Measurement of lipid oxidation: A review , 1978 .

[14]  Elizabeth A. Peck,et al.  Introduction to Linear Regression Analysis , 2001 .

[15]  C. Akoh,et al.  Extraction and analysis of lipids. , 2002 .

[16]  L. Gonçalves,et al.  Determination of hydroperoxides in oils and fats using kits , 2007 .

[17]  S. Cuppett,et al.  Evaluation of SafTestTM methods for monitoring frying oil quality , 2006 .