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Title

Authentication of fattening diet of Iberian pigs according to their volatile compounds profile from raw subcutaneous fat

AuthorsNarváez Rivas, Mónica ; Pablos, Fernando; Jurado, J. Marcos; León Camacho, Manuel
KeywordsIberian pig
Subcutaneous fat
Volatile compounds
Gas chromatography-mass spectrometry
Pattern recognition
Issue Date2011
PublisherSpringer
CitationAnalytical and Bioanalytical Chemistry 399(6): 2115-2122 (2011)
AbstractThe composition of volatile components of subcutaneous fat from Iberian pig has been studied. Purge and trap gas chromatography-mass spectrometry has been used. The composition of the volatile fraction of subcutaneous fat has been used for authentication purposes of different types of Iberian pig fat. Three types of this product have been considered, montanera, extensive cebo and intensive cebo. With classification purposes, several pattern recognition techniques have been applied. In order to find out possible tendencies in the sample distribution as well as the discriminant power of the variables, principal component analysis was applied as visualisation technique. Linear discriminant analysis (LDA) and soft independent modelling by class analogy (SIMCA) were used to obtain suitable classification models. LDA and SIMCA allowed the differentiation of three fattening diets by using the contents in 2,2,4,6,6-pentamethyl-heptane, m-xylene, 2,4-dimethyl-heptane, 6-methyl-tridecane, 1-methoxy-2-propanol, isopropyl alcohol, o-xylene, 3-ethyl-2,2-dimethyl-oxirane, 2,6-dimethyl-undecane, 3-methyl-3-pentanol and limonene. © Springer-Verlag 2010.
URIhttp://hdl.handle.net/10261/53351
DOI10.1007/s00216-010-4387-z
Identifiersdoi: 10.1007/s00216-010-4387-z
issn: 1618-2642
e-issn: 1618-2650
Appears in Collections:(IG) Artículos
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