Chemical composition and seasonal changes in the fatty acid profile of Uruguayan “Colonia” Cheeses

D. Hirigoyen; R. de los Santos; M. F. Calvo; A. González-Revello; M. Constantin

doi:10.3989/gya.1217172

Autores/as

D. Hirigoyen Dpto. de Ciencia y Tecnología de la Leche. Facultad de Veterinaria. Universidad de la República - Instituto Nacional de Investigación Agropecuaria (INIA) https://orcid.org/0000-0001-9973-0158
R. de los Santos Dpto. de Ciencia y Tecnología de la Leche. Facultad de Veterinaria. Universidad de la República https://orcid.org/0000-0002-6173-6973
M. F. Calvo Cooperativa Laboratorio Veterinario de Colonia (COLAVECO) https://orcid.org/0000-0002-8653-5916
A. González-Revello Dpto. de Ciencia y Tecnología de la Leche. Facultad de Veterinaria. Universidad de la República https://orcid.org/0000-0001-7488-7925
M. Constantin Cooperativa Laboratorio Veterinario de Colonia (COLAVECO) https://orcid.org/0000-0001-6529-5186

DOI:

https://doi.org/10.3989/gya.1217172

Palabras clave:

Ácidos Grasos, CLA – Ácido Linoleico Conjugado, IA – Índice de Aterogenicidad, IT – Índice de Trombogenicidad, Queso

Resumen

Se determina la composición química básica y el perfil de ácidos grasos (FA) de los quesos Colonia, originarios de Uruguay, que se consumen en la región del Mercosur. Se analizaron 24 quesos: originarios de diferentes establecimientos 10 elaborados en otoño y 14 en primavera. Los quesos fueron elaborados con leche de vacas, alimentadas sobre la base de un sistema pastoril al 50%, concentrados al 25% y reservas de ensilaje al 25%. Las etapas de fabricación del queso y el tiempo de maduración fueron similares. Surgieron diferencias estacionales en los perfiles de FA saturada (SFA), FA insaturada (UFA) y FA poliinsaturada (PUFA). La comparación estacional de FA poliinsaturado (PUFA) al igual que el isómero de CLA C18:2 t10c12 mostró diferencias (p < 0.05). El isómero C18:2 c9t11, no mostró diferencias significativas (p > 0.05). Se discuten los índices calculados de aterogénesis (IA) = 2.21 y de trombogenicidad (IT) = 2.84.

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