Correlation of animal diet and fatty acid content in young goat meat by gas chromatography and chemometrics

Wendell K T Coltro; Márcia M C Ferreira; Francisco A F Macedo; Claudio C Oliveira; Jesui V Visentainer; Nilson E Souza; Makoto Matsushita

doi:10.1016/j.meatsci.2005.04.016

Correlation of animal diet and fatty acid content in young goat meat by gas chromatography and chemometrics

Meat Sci. 2005 Oct;71(2):358-63. doi: 10.1016/j.meatsci.2005.04.016. Epub 2005 Jun 4.

Authors

Wendell K T Coltro¹, Márcia M C Ferreira, Francisco A F Macedo, Claudio C Oliveira, Jesui V Visentainer, Nilson E Souza, Makoto Matsushita

Affiliation

¹ Instituto de Química de São Carlos, Universidade de São Paulo, 13566-590 São Carlos, SP, Brazil.

PMID: 22064237
DOI: 10.1016/j.meatsci.2005.04.016

Abstract

The meat fatty acids (FA) profiles of caprines submitted to different dietary treatments were determined by gas chromatography. The data were treated by Chemometrics to consider all variables together. The contents of saturated FA (SFA), monounsaturated FA (MUFA), polyunsaturated FA (PUFA), omega-3 (n-3) FA, and omega-6 (n-6) FA in 32 samples were analyzed. PUFA:SFA and n-6:n-3 ratios were also considered. The multivariate methods of hierarchical cluster analysis (HCA) and principal component analysis (PCA) were used to analyze the experimental results. HCA can group samples according to their basic composition, and PCA can explain the relationship among the dietary treatments according to the meat fatty acid composition. Treatment 1 presented the highest n-6 FA concentration, PUFA:SFA, and n-6:n-3 ratios, and the lowest MUFA and n-3 concentrations. Opposite results were observed for treatment 4. Treatments 2 and 3 were highly similar with differences mainly in SFA and MUFA concentrations.