INVESTIGADORES
PEROTTI Nora Ines
artículos
Título:
Fluidized bed ion exchange for improving purification of lactic acid from fermentation
Autor/es:
RAYA-TONETTI, GABRIEL; CORDOBA, PEDRO; BRUNO-BARCENA, JOSÉ M; FAUSTINO SINERIZ,; PEROTTI, N
Revista:
BIOTECHNOLOGY TECHNIQUES
Editorial:
SPRINGER
Referencias:
Lugar: Amsterdam; Año: 1999 vol. 13 p. 201 - 205
ISSN:
0951-208X
Resumen:
ABSTRACT: A strong anionic exchange resin was used to recover lactic acid directly from fermentation in an upflow fluidized bed column, resulting in 0.18g lactic acid/g resin bound with a subsequent elution of 94%. When the culture broth was heated and adjusted pH to 8.0, 0.4g lactic acid was bound perg resin, with a subsequent elution of 90%. L(+) and D(?) lactic acid isomers distribution was analyzed in the elution product resulting in an increase of L(+) isomer concentration. The resin did not alter its binding capacity after 23 cycles.
