Gelling Properties of Atlantic Croaker Surimi Processed by Acid or Alkaline Solubilization

Autor: Miriam Pérez-Mateos, Tyre C. Lanier, Penny M. Amato
Přispěvatelé: Ministerio de Educación y Cultura (España), North Carolina State University
Rok vydání: 2004
Předmět:
Zdroj: Digital.CSIC. Repositorio Institucional del CSIC
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ISSN: 0022-1147
DOI: 10.1111/j.1365-2621.2004.tb06335.x
Popis: Textural properties of gels from Atlantic croaker surimi recovered by isoelectric precipitation, following acid (AC) or alkaline (AL) solubilization, were compared with that of conventionally washed (CW) surimi. Gel strengths were in the order of AL > AC > CW, with higher gel strength and deformability induced by microbial transglutaminase addition. None of the surimi treatments evidenced endogenous TGase activity. Salt (2% NaCl) addition had variable effects. Proteolysis was evident by sodium dodecyl sulfate-polyacrylamide gel electrophoresis in gels from all treatments when preincubated at 30°C or 40°C.
This work was also sponsored in part by the Univ. of North Carolina Sea Grant College Program by Projects R/SST-24 and R/SST-26 from the Natl. Oceanic and Atmospheric Administration. The authors thank the Spanish Ministry of Education and Culture/Fulbright Program for Ms.Perez-Mateos’ postdoctoral fellowship awarded at NCSU, as well asthe Center for Marine Sciences and Technology at Morehead City, N.C., for their help with procurement and preparation of the fishused in this study.
Databáze: OpenAIRE
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