Artículos de revistas
Effect of the addition of invert sugar on the production of cephalosporin C in a fed-batch bioreactor
Fecha
1998-12-01Registro en:
Brazilian Journal of Chemical Engineering. Brazilian Society of Chemical Engineering, v. 15, n. 4, p. 320-325, 1998.
0104-6632
10.1590/S0104-66321998000400001
S0104-66321998000400001
2-s2.0-0032313949
Autor
Universidade Estadual Paulista (Unesp)
Universidade Federal de São Carlos (UFSCar)
Institución
Resumen
Cephalosporin C, a b -lactam antibiotic, is the starting molecule for industrial production of semi-synthetic cephalosporins. The bioprocess for its production is carried out in batch stirred and aerated tank reactors utilizing strains of the filamentous fungus Cephalosporium acremonium. In this work a comparison was made between the processes of production of cephalosporin C in a conventional batch bioreactor, with synthetic medium containing glucose and sucrose, and in a fed-batch reactor at several flowrates of supplementary medium containing invert sucrose. In general, the fed-batch process was shown to be more efficient than the conventional batch one, and the process in which the lowest supplementation flowrate was used presented an antibiotic production significantly higher than those obtained under the other conditions.