Characteristics and functional properties of gelatin extracted from squid (Loligo vulgaris) skin

The characteristics and functional properties of gelatin extracted from squid skin (Loligo vulgaris), using commercial pepsin at a level of 15 Units/g skin, were investigated. The gelatin extraction yield was 6.82 g/100 g wet basis, showing high protein content and low fat and ash contents. SDS-PAGE of squid skin gelatin showed high band intensity for the major protein components, especially, α- and β-components. The amino acid profile of squid skin gelatin showed a high percentage of imino acids, essential amino acids and hydrophobic amino acids. Fourier transformed infrared spectroscopy (FT-IR) spectra showed helical structure. Squid skin gelatin was able to form a completely thermo-reversible gel. Gelatin possessed interesting functional properties, which were governed by gelatin concentration.

Bibliographic Details

Main Authors:	Abdelmalek, Baha Eddine, Gómez Estaca, Joaquín, Sila, Assaâd, Martínez Álvarez, Óscar, Gómez Guillén, M. C., Ellouz-Chaabouni, Semia, Ayadi, Mohamed Ali, Bougatef, Ali
Other Authors:	Ministère de l’Enseignement Supérieur et de la Recherche Scientifique (Tunisie)
Format:	artículo biblioteca
Published:	Elsevier 2016
Subjects:	Gelatin, Loligo vulgaris, Functional properties, Dynamic oscillatory properties, Pepsin,
Online Access:	http://hdl.handle.net/10261/171514
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