Authentication of the Montanera Period on Carcasses of Iberian Pigs by Using Analytical Techniques and Chemometric Analyses

[EN] The potential of two complementary analytical techniques (near infrared spectroscopy, NIRS and gas chromatography–ion mobility spectrometry, GC-IMS) was used to establish the time that Iberian pigs have been fed on acorns and pasture and to verify their genetic purity. For both techniques it wa...

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Detalles Bibliográficos
Autores: Arce, Lourdes, Cardador, María José, Ríos-Reina, Rocío, Revilla Martín, Isabel, González Martín, María Inmaculada, Vivar Quintana, Ana María, Hernández Jiménez, Miriam
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universidad de Salamanca (USAL)
Repositorio:GREDOS. Repositorio Institucional de la Universidad de Salamanca
OAI Identifier:oai:gredos.usal.es:10366/159983
Acceso en línea:http://hdl.handle.net/10366/159983
Access Level:acceso abierto
Palabra clave:NIRS
GC-IMS
Iberian pig carcasses
Non-destructive sampling methods
Acorns and grass feeding
Acorn-fed
Alimentación de bellotas y pasto
Métodos de muestreo no destructivos
1209.10 Teoría y Técnicas de Muestreo
3103.10 Pastos
Descripción
Sumario:[EN] The potential of two complementary analytical techniques (near infrared spectroscopy, NIRS and gas chromatography–ion mobility spectrometry, GC-IMS) was used to establish the time that Iberian pigs have been fed on acorns and pasture and to verify their genetic purity. For both techniques it was neither necessary to carry out any chemical treatment in advance nor to identify individual compounds. The results showed that both the NIR spectrum and the spectral fingerprint obtained by GC-IMS were affected by the time that the Iberian pig feeds on natural resources. High percentages of correct classification were achieved in the calibration for both techniques: >98% for the days of montanera and >96% for the breed by NIRS and >99% for the days of montanera and >98% for the breed by GC-IMS. The results obtained showed that NIR spectra taken from intact samples is a quick classification method according to the time of montanera and breed.

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