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PeerJ

Title:		The extent to which genetics and lean grade affect fatty acid profiles and volatile compounds in organic pork
Author(s):		Argemi-Armengol I; Villalba D; Tor M; Perez-Santaescolastica C; Purrinos L; Manuel Lorenzo J; Alvarez-Rodriguez J;
Address:		"Departament de Ciencia Animal, Universitat de Lleida, Lleida, Spain. Centro Tecnoloxico da Carne de Galicia, Ourense, Spain"
Journal Title:		PeerJ
Year:		2019
Volume:		20190717
Issue:
Page Number:		e7322 -
DOI:		10.7717/peerj.7322
ISSN/ISBN:		2167-8359 (Print) 2167-8359 (Electronic) 2167-8359 (Linking)
Abstract:		"Niche production is intended to produce premium pork, but several husbandry factors may affect the meat fatty acid composition and aroma. Fatty acid profile (by GC-FID) of raw meat and volatile compounds (by SPME-GC-MS) of cooked meat were analysed in loin samples from two pig genetic types-75% Duroc (Du) and 50% Pietrain (Pi) rossbreds that were slaughtered at different weights (90 kg and 105 kg, respectively) to achieve similar target carcass fatness, and the outcome carcasses were balanced for lean grade groups (<60% or >/=60% lean) within genotypes. Genetic type did not affect fatty acids (FA) profile of meat. The leaner meat had lower C12:0 and C20:3n - 3, lower saturated fatty acids (SFA) and higher MUFA/SFA ratio content than the fattier meat. Short-chain alcohols were lower in Pietrain and in leaner pork compared to the samples from Duroc crossbreds and fattier pork. A greater amount of hexane,2,4,4-trimethyl (an aliphatic hydrocarbon) but lower carbon disulphide (sulphur compound) content was detected in pork from leaner compared to fattier pork. Higher aromatics hydrocarbons were exclusively associated with Duroc crossbreds, and lower aliphatic hydrocarbons with pigs classified as fattier. Most of the volatile compounds detected in the present study came from lipid oxidation"
Keywords:		Fatty acids Lean grade Organic husbandry Volatile compounds;
Notes:		"PubMed-not-MEDLINEArgemi-Armengol, Immaculada Villalba, Daniel Tor, Marc Perez-Santaescolastica, Cristina Purrinos, Laura Manuel Lorenzo, Jose Alvarez-Rodriguez, Javier eng 2019/07/28 PeerJ. 2019 Jul 17; 7:e7322. doi: 10.7717/peerj.7322. eCollection 2019"