作者: Naourez Ktari , Mourad Jridi , Rim Nasri , Imen Lassoued , Hanen Ben Ayed
DOI: 10.1016/J.LWT.2014.03.036
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摘要: Abstract Gelatin was extracted from alkali-pretreated skin of zebra blenny (Salaria basilisca) using commercial pepsin with a yield 18 g/100 g sample. The polypeptides pattern, gel strength, viscosity, textural parameters and functional properties the gelatin (ZBSG) were investigated. Amino acid analysis revealed that ZBSG contained almost all essential amino acids, glycine being most predominant one. identified as type I gelatin, containing α1 α2-chains major constituents. Its strength viscosity 170.2 g 5.95 cP, respectively. Fourier transformed infrared spectroscopy (FT-IR) spectra showed helical arrangements in its structure. solubility concentration-dependent. While foam expansion (FE) stability (FS) increased increase concentration, emulsifying activity index (EAI) emulsion (ESI) noted to decrease. also strong clarification ability particularly for apple juice, without affecting nutritional value.