Can deep freezing maintain the quality of two different Iberian pork products over a long storage period?

To assess whether prolonged frozen storage preserves the properties of two deep-frozen Iberian pork products (sirloin and ‘picadillo’), the technological, microbiological, and sensory characteristics of both products (n = 32) were evaluated at zero time in the fresh product, and after 12, 18 and 24 ...

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Main Authors: Ainhoa Sarmiento-García, Beatriz Martínez, Begoña Rubio, Juan-José García-García, Ceferina Vieira
Format: Article
Language:English
Published: Taylor & Francis Group 2025-12-01
Series:Italian Journal of Animal Science
Subjects:
Online Access:http://dx.doi.org/10.1080/1828051X.2025.2451179
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author Ainhoa Sarmiento-García
Beatriz Martínez
Begoña Rubio
Juan-José García-García
Ceferina Vieira
author_facet Ainhoa Sarmiento-García
Beatriz Martínez
Begoña Rubio
Juan-José García-García
Ceferina Vieira
author_sort Ainhoa Sarmiento-García
collection DOAJ
description To assess whether prolonged frozen storage preserves the properties of two deep-frozen Iberian pork products (sirloin and ‘picadillo’), the technological, microbiological, and sensory characteristics of both products (n = 32) were evaluated at zero time in the fresh product, and after 12, 18 and 24 months of storage at −20 °C after deep-freezing at −80 °C for 50 min after thawing. Frozen storage time affected microbial quality with different trends depending on the microbial count and the product assessed. An increase in pH value and water holding capacity (p < 0.05) was observed in sirloin at the end of storage, while ‘picadillo’ showed the opposite trend. In the sensory analysis, panellists recorded a decrease in value (p < 0.05) as storage time increased for both products, with more evident changes observed in the ‘picadillo’. The higher fat content and the greater surface area of the minced meat could be responsible for the most evident differences. Although ‘picadillo’ was more sensitive to storage, the results suggest frozen storage for up to 24 months of deep-frozen Iberian meat products could preserve their quality. Extended storage of up to 24 months could be a suitable strategy for preserving the high quality of Iberian pork.
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spelling doaj-art-ae0e558ea45645f89606cb988d664a7f2025-01-27T11:59:10ZengTaylor & Francis GroupItalian Journal of Animal Science1594-40771828-051X2025-12-0124128129110.1080/1828051X.2025.24511792451179Can deep freezing maintain the quality of two different Iberian pork products over a long storage period?Ainhoa Sarmiento-García0Beatriz Martínez1Begoña Rubio2Juan-José García-García3Ceferina Vieira4Área de Producción Animal, Departamento de Construcción y Agronomía, Facultad de Agricultura y Ciencias Ambientales, Universidad de SalamancaEstación Tecnológica de la Carne, Instituto Tecnológico Agrario de Castilla y León (ITACyL)Estación Tecnológica de la Carne, Instituto Tecnológico Agrario de Castilla y León (ITACyL)Estación Tecnológica de la Carne, Instituto Tecnológico Agrario de Castilla y León (ITACyL)Estación Tecnológica de la Carne, Instituto Tecnológico Agrario de Castilla y León (ITACyL)To assess whether prolonged frozen storage preserves the properties of two deep-frozen Iberian pork products (sirloin and ‘picadillo’), the technological, microbiological, and sensory characteristics of both products (n = 32) were evaluated at zero time in the fresh product, and after 12, 18 and 24 months of storage at −20 °C after deep-freezing at −80 °C for 50 min after thawing. Frozen storage time affected microbial quality with different trends depending on the microbial count and the product assessed. An increase in pH value and water holding capacity (p < 0.05) was observed in sirloin at the end of storage, while ‘picadillo’ showed the opposite trend. In the sensory analysis, panellists recorded a decrease in value (p < 0.05) as storage time increased for both products, with more evident changes observed in the ‘picadillo’. The higher fat content and the greater surface area of the minced meat could be responsible for the most evident differences. Although ‘picadillo’ was more sensitive to storage, the results suggest frozen storage for up to 24 months of deep-frozen Iberian meat products could preserve their quality. Extended storage of up to 24 months could be a suitable strategy for preserving the high quality of Iberian pork.http://dx.doi.org/10.1080/1828051X.2025.2451179deep-freezingfat contentiberian porkprolonged storagemeat quality
spellingShingle Ainhoa Sarmiento-García
Beatriz Martínez
Begoña Rubio
Juan-José García-García
Ceferina Vieira
Can deep freezing maintain the quality of two different Iberian pork products over a long storage period?
Italian Journal of Animal Science
deep-freezing
fat content
iberian pork
prolonged storage
meat quality
title Can deep freezing maintain the quality of two different Iberian pork products over a long storage period?
title_full Can deep freezing maintain the quality of two different Iberian pork products over a long storage period?
title_fullStr Can deep freezing maintain the quality of two different Iberian pork products over a long storage period?
title_full_unstemmed Can deep freezing maintain the quality of two different Iberian pork products over a long storage period?
title_short Can deep freezing maintain the quality of two different Iberian pork products over a long storage period?
title_sort can deep freezing maintain the quality of two different iberian pork products over a long storage period
topic deep-freezing
fat content
iberian pork
prolonged storage
meat quality
url http://dx.doi.org/10.1080/1828051X.2025.2451179
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