Article

Caracterización parcial del colágeno a partir del manto, aleta y tentáculos de calamar gigante (Dosidicus gigas)

Ciência e Tecnologia de Alimentos (Impact Factor: 0.41). 01/2008; 6.
Source: OAI

ABSTRACT

El colágeno en el Dosidicus gigas o calamar gigante participa en los mecanismos natatorios del organismo. Sin embargo, la información fisicoquímica sobre esta proteína es escasa. En este estudio se comparó el contenido y algunas propiedades fisicoquímicas de colágeno soluble en pepsina (CSP) e insoluble (CI) extraídos de manto, aleta y tentáculos de Dosidicus gigas fresco. El contenido de colágeno total, así como el perfil electroforético fueron diferentes para cada región anatómica evaluada. Los tentáculos presentaron el mayor contenido de CI. En estudios de microscopia electrónica de barrido (MEB) se observó un arreglo estructural similar en el CSP de las tres regiones y en el CI, marcadas diferencias en el empaquetamiento de las fibras. Las tres fracciones proteicas de colágeno, mostraron una alta resistencia térmica (115-120 °C), siendo superior para tentáculos en comparación con aleta y manto. Esta información contribuye a un mayor conocimiento de la especie y una mejor aplicación comercial de la misma.

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