INVESTIGADORES
ZARITZKY Noemi Elisabet
artículos
Título:
Antimicrobial activity of undissociated sorbic acid in vacuum packaged beef
Autor/es:
ZAMORA MC; ZARITZKY NOEMI.
Revista:
JOURNAL OF FOOD SCIENCE
Editorial:
WILEY-BLACKWELL PUBLISHING, INC
Referencias:
Lugar: Londres; Año: 1987 vol. 52 p. 1449 - 1454
ISSN:
0022-1147
Resumen:
Inhibitory effectiveness of sorbic acid was analyzed in vacuum packaged refrigerated beef by studying the modifications of bacterial growth parameters. Total counts,Lactobacilus.ssp .. Pseudomonassp ., Enrerobacreriaceae, Brochorhrix rhermosphacra and yeasts in samplesof different pH values (5.70-6.20) which had been treated with potassium sorbate (27-3125 ppm) showed variations in the lag phase, growth rate, stationary phase and inhibition index. For refrigerated beef the contribution of sorbic acid dissociated fraction to the inhibitoryeffect was negligible, Considering growth parameters? dependence on undissociated sorbic acid concentration a mathematical model of microbial growth in treated beef was derived, which could be used to predict product shelf-life.
