2026-05-11T20:26:30Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/103382025-03-18T01:05:36Zcom_10259_4292com_10259_5086com_10259_2604com_10259_5827col_10259_4293col_10259_5828

00925njm 22002777a 4500 dc Beriain, María José author Ibáñez, Francisco C. author Beruete, Edurne author Gómez Bastida, Inmaculada author Beruete, Miguel author 2021 The aim of this research was to estimate the fatty acid (FA) content of intramuscular fat from beef by Fourier transform mid-infrared (FT-MIR) spectroscopy. Four diets were supplemented in 10% linseed (LS) and/or 2% conjugated linoleic acid (CLA): CON (without L or CLA), LS, CLA, and LS+CLA. For each diet, 12 young Holstein bulls were allocated. The spectral response of the beef samples was analyzed applying FT-MIR spectroscopy (from 400 to 4000 cm−1) and predictive models were developed using partial least square regression with cross-validation. The obtained coefficients (R2) for some FA, such as α-linolenic acid with a R2 = 0.96 or n-3 polyunsaturated fatty acids (n-3 PUFA) with R2 = 0.93, demonstrate that FT-MIR spectroscopy is a valid technique to estimate the content of FA. In addition, samples were correctly classified according to the animal diet using discriminant analysis in the region 3000–1000 cm−1. The obtained results suggest that the FT-MIR spectroscopy could be a viable technique for routine use in quality control because it provides fast and sustainable analysis of FA content. Furthermore, this technique allows the rapid estimation of the FA composition, specifically n-3 PUFA and CLA, of nutritional interest in meat. It also allows the classification of meat samples by the animal diet. http://hdl.handle.net/10259/10338 10.3390/foods10010155 2304-8158 FT-MIR spectroscopy Beef N-3 fatty acids Prediction models Estimation of Fatty Acids in Intramuscular Fat of Beef by FT-MIR Spectroscopy