INVESTIGADORES
PEROTTI Nora Ines
artículos
Título:
Lactate from cultures of Lactobacillus casei recovered in a fluidized bed column using ion exchange resin
Autor/es:
PR CORDOBA,; AL RAGOUT,; F SINERIZ,; PEROTTI, N
Revista:
BIOTECHNOLOGY TECHNIQUES
Editorial:
SPRINGER
Referencias:
Año: 1996 vol. 10 p. 629 - 634
ISSN:
0951-208X
Resumen:
ABSTRACT: Lactic acid produced by continuous culture of L.casei in an upflow packed bed reactor, was recovered with Amberlite IRA 400 in a fluidized bed column. Bed expansions of 1.25 and 2.25 were applied. Reutilization did not alter the capability of net recovery of 0.048 0.01 g lactic acid/g resin. When 2200 cm/h of ascensional velocity was used, (bed expansion of 2.25), the resin adsorbed 39.3% of the initial lactic acid and 63.5% was eluted. This resin supported the highest exchange capacity of 0.126 g lactic acid/g resin. Applying high flow rates, the process has potential industrial applications due to the short time employed.
