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Structural properties of aggregates from frozen stored hake muscle proteins.

Author(s) : CARECHE M., GARCÍA M. L., HERRERO A., et al.

Type of article: Article

Summary

Raman spectroscopy and electron microscopy were used to examine the structural properties of sodium dodecyl sulfate-mercaptoethanol-unextractable aggregates formed during the frozen storage of hake muscle. The results showed that: (a) the unextractable residue comprised thick filaments, which appeared connected and aggregated, forming a network; (b) the protein backbone adopted a conformational structure rich in beta-sheets; and (c) Raman spectroscopy revealed for the 1st time the presence of symmetrical stretching vCH2 bands, whose frequencies are consistent with the presence of lysine-arginine and/or lysine-glutamine/asparagine bridges in the aggregates.

Details

  • Original title: Structural properties of aggregates from frozen stored hake muscle proteins.
  • Record ID : 2003-2894
  • Languages: English
  • Source: Ital. J. Food Sci. - vol. 67 - n. 8
  • Publication date: 2002/10
  • Document available for consultation in the library of the IIR headquarters only.

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