Proteasas extracelulares producidas por bacterias marinas aisladas de aguas contaminadas con efluentes pesqueros

Tito Sánchez, Jorge León, Juan Woolcott, Katherine Arauco

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

6 Citas (Scopus)

Resumen

A total of 26 strains of marine bacteria with proteolytic activity was isolated from sea water contaminated with fishing effluents; they were evaluated in basis of their growth and formation of activity halos in Marine Agar supplemented with casein to 1%, pH 8,0 and incubated to 25 °C per 72 hours. Selected five strains were evaluated on the basis of displaying the best halos of activity as well by their growth and production of proteases at different concentrations of NaCl, temperature ranges and pH; being finally considered as moderate halotolerants bacteria, psicrotrophics and alkalophile. These strains also were evaluated by their specific proteolytic activity on the casein, being strain CM48 (Pseudomonas sp.) the one that presented the best specific activity (17,38 U/mg) at 72 hours, and followed by strain CM45 (Alcaligenes sp.) (12,09 U/mg) and three strains of Aeromonas sp. (CM43, CM44 and CM46) with values of 12,02; 10,07 and 10,10 U/mg respectively.

Título traducido de la contribuciónExtracellular proteases produced by marine bacteria isolated from sea water contaminated with fishing effluents
Idioma originalEspañol
Páginas (desde-hasta)179-186
Número de páginas8
PublicaciónRevista Peruana de Biologia
Volumen11
N.º2
EstadoPublicada - 2004
Publicado de forma externa

Nota bibliográfica

Publisher Copyright:
© 2004 Facultad de Ciencias Biológicas UNMSM.

Palabras clave

  • Extracellular enzymes
  • Marine bacteria
  • Proteases
  • Psicrotrophics

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