Discrimination of the autochthonous animal fats by ATR-FTIR-PCA and comparison with vegetable oils

Authors:

Raymond Nandy Szakal, Anamaria Guran, Marius Ioan Cugerean, Ionut Mircea Petroman, Daniel Ioan Hadaruga, Nicoleta Gabriela Hadaruga*

 


Volume 29, Issue 2;
Pages: 42-49; 2023
ISSN: 2069-0053 (print), Agroprint;
ISSN (online): 2068-9551

Abstract:

Animal and vegetable lipids are important parts of the human diet, taking into account the constant increasing of the Globe population. The quality and authenticity of such raw materials are always important requests. The goal of this study was the discrimination of the autochthonous animal fats by Fourier-transform infrared spectroscopy coupled with principal component analysis (FTIR-PCA) and comparison with vegetable oils. Lipid fractions from the pork meat of “Landrace” and “Mangalitza” breeds, as well as from the meat samples of “Ţurcană” sheep and “Giant White German” rabbit were compared with non-conventional and classical vegetable oils (black sesame, white mustard and chia seeds, respectively sunflower and palm) through FTIR analysis and the results were used as input data for the PCA classification of animal and vegetable samples. The animal fats and vegetable oils were classified according to the lipid profile by infrared spectroscopy if the differences between the concentrations of saturated and unsaturated fatty components are significant, suggesting the use of these combined techniques to evaluate product quality and to detect possible adulterations in some cases of animal products that have higher costs.

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