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Título: | Effects of freezing and frozen storage on the microstructure and texture of ewe's milk cheese |
Autor: | Fontecha, F. Javier CSIC ORCID ; Kaláb, M.; Medina, J. A.; Peláez, Carmen CSIC ORCID ; Juárez, Manuela CSIC ORCID | Palabras clave: | Ewe's milk cheese Cheese texture Frozen storage Cheese microstructure Freezing |
Fecha de publicación: | 1996 | Editor: | Springer Nature | Citación: | European Food Research and Technology 203: 245- 251 (1996) | Resumen: | Semi-hard ewe's milk cheeses, frozen immediately after manufacture either slowly at -35°C or rapidly at -80°C and stored at -20°C for 4 months were studied for microstructural and textural characteristics during subsequent ripening. Two control groups were used to establish the effect of freezing: the fresh unfrozen cheese and cheese thawed immediately after freezing. Freezing proper did not result in any marked changes in the textural parameters of the cheeses, but considerable changes were found in slowly frozen cheeses after 4 months of frozen storage. Shear strength values were lower in all frozen and stored cheeses, particularly in cheese samples frozen slowly compared to those in the unfrozen control batch. This parameter and firmness values were significantly lower in both slowly and rapidly frozen cheeses at the completion of ripening. Ripening tended to offset differences in elasticity, noticeable in the cheeses during the first 30 days of ripening. Light microscopy and electron microscopy revealed small cracks and ruptures in the cheeses which could not be observed by the naked eye. More extensive damage to the cheese microstructure was found in slowly frozen cheese samples stored frozen for 4 months. © Springer-Verlag 1996. | URI: | http://hdl.handle.net/10261/115863 | DOI: | 10.1007/BF01192872 | Identificadores: | doi: 10.1007/BF01192872 issn: 1438-2377 |
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