Recovery of fibrinogen in cryoprecipitate pasteurized in the presence of sucrose and glycine
Braz. j. med. biol. res
; 26(5): 473-6, May 1993. graf
Article
en En
| LILACS
| ID: lil-148701
Biblioteca responsable:
BR1.1
RESUMO
The effect of sucrose (60 per cent w/w) and 1 M glycine as thermal stabilizers for fibrinogen in cryoprecipitate was studied. Sucrose (9.2 g) and glycine (0.9 g) were dissolved in 6 g of cryoprecipitate and the solution was pasteurized at 60 degrees C for 10 h. The preparation was then dialyzed for 20 h in phosphate buffered saline (PBS), lyophilized, stored for one week at -40 degrees C and resuspended in distilled water. The recovery of total proteins and fibrinogen in the final product averaged 66.4 +/- 4.1 per cent and 43.8 +/- 6.4 per cent of the initial contents, respectively (mean +/- SEM, N = 9). The pasteurization of cryoprecipitate in the presence of PBS (control experiments) produced extensive precipitation, which is characteristic of protein denaturation. Thus, this method partially protected fibrinogen and other proteins in cryoprecipitate from inactivation by prolonged exposure to heat during pasteurization
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Índice:
LILACS
Asunto principal:
Sacarosa
/
Fibrinógeno
/
Criopreservación
/
Glicina
Límite:
Humans
Idioma:
En
Revista:
Braz. j. med. biol. res
Asunto de la revista:
BIOLOGIA
/
MEDICINA
Año:
1993
Tipo del documento:
Article