© 2017 Society of Chemical Industry BACKGROUND: The giant squid (Dosidicus gigas) has been proposed as raw material to obtain myofibrillar protein concentrates. However, it has been observed that colloidal systems formed from squid proteins have limited stability. Therefore, the isolation and characterization of the actomyosin–paramyosin isolated (API) complex were performed, because they are the main proteins to which functionality has been attributed. RESULTS: Densitogram analysis revealed 45% of actin, 38% of myosin and 17% of paramyosin. The amino acid profile indicates a higher proportion of acidic amino acids, which gives a higher negative charge; this was supported by the zeta potential. Total sulfhydryl (TSH) content was lower compared with proteins of other aquatic species. CONCLUSION: The higher percentage of actin in relation to myosin, the presence of paramyosin, as well as the low content of sulfhydryl groups, could comprise the main causes of the low technological functional property of proteins from D. gigas mantle. © 2017 Society of Chemical Industry.
Idioma originalInglés estadounidense
Páginas (desde-hasta)1787-1793
Número de páginas7
PublicaciónJournal of the Science of Food and Agriculture
EstadoPublicada - 30 mar. 2018

Nota bibliográfica

Publisher Copyright:
© 2017 Society of Chemical Industry

Palabras clave

  • Dosidicus gigas
  • actomyosin–paramyosin
  • amino acids
  • sulfhydryl
  • zeta potential


Profundice en los temas de investigación de 'Physicochemical characterization of actomyosin–paramyosin from giant squid mantle (Dosidicus gigas)'. En conjunto forman una huella única.

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