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Abstract:

Intracellular water activities (aw) calculated from the solute composition of various bacterial cells, are in good agreement with values derived from intracellular freezing point data. Further, and confirming literature results based on freezing points, the intracellular aw was found to be generally equal to or lower than that of the growth medium. Copyright © 1981, Wiley Blackwell. All rights reserved

Registro:

Documento: Artículo
Título:The Intracellular Water Activity of Bacteria in Relation to the Water Activity of the Growth Medium
Autor:CHIRIFE, J.; FONTAN, C.F.; SCORZA, O.C.
Filiación:Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Núñez, Buenos Aires, 1428, Argentina
Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina
Laboratorio Central (Inv. y Desarrollo), Rivadavia 869, Buenos Aires, 1022, Argentina
Palabras clave:water; animal experiment; bacterium; culture medium; in vitro study; osmotic pressure
Año:1981
Volumen:50
Número:3
Página de inicio:475
Página de fin:479
DOI: http://dx.doi.org/10.1111/j.1365-2672.1981.tb04250.x
Título revista:Journal of Applied Bacteriology
Título revista abreviado:J. Appl. Bacteriol.
ISSN:00218847
CAS:water, 7732-18-5
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00218847_v50_n3_p475_CHIRIFE

Referencias:

  • Benmergui, E.A., Ferro Fontán, C., Chirife, J., The prediction of water activity in aqueous solutions in connection with intermediate moisture foods, I. aw prediction in single aqueous electrolyte solutions (1979) Journal of Food Technology, 14, pp. 625-637
  • Chirife, J., Ferro Fontán, C., The prediction of water activity in aqueous solutions in connection with intermediate moisture foods, V. Experimental investigation of the aw lowering behaviour of sodium lactate and some related compounds (1980) Journal of Food Science, 45, pp. 802-804
  • Chirife, J., Ferro Fontán, C., Benmergui, E.A., The prediction of water activity in aqueous solutions in connection with intermediate moisture foods, IV. aw prediction in aqueous non‐electrolyte solutions (1980) Journal of Food Technology, 15, pp. 59-70
  • Chirife, J., Ferro Fontán, C., Scorza, O.C., A study of the water activity lowering behaviour of some amino acids (1980) Journal of Food Technology, 15, pp. 383-387
  • Christian, J.H.B., Ingram, M., The freezing points of bacterial cells in relation to halophilism (1959) Journal of General Microbiology, 20, pp. 27-31
  • Christian, J.H.B., Waltho, J.A., Solute concentrations within cells of halophilic and non‐halophilic bacteria (1962) Biochimica et Biophysica Acta, 65, pp. 506-508
  • Christian, J.H.B., Waltho, J.A., The water relations of staphylococci and micrococci (1962) Journal of Applied Bacteriology, 25, pp. 369-377
  • Christian, J.H.B., Waltho, J.A., The composition of Staphylococcus aureus in relation to the water activity of the growth medium (1964) Journal of General Microbiology, 35, pp. 205-213
  • Ferro Fontán, C., Benmergui, E.A., Chirife, J., The prediction of water activity in aqueous solutions in connection with intermediate moisture foods, III. aw prediction in multicomponent strong electrolyte aqueous solutions (1980) Journal of Food Technology, 15, pp. 47-58
  • Ferro Fontán, C., Chirife, J., On the evaluation of water activity in aqueous solutions from freezing point depression (1981) Journal of Food Technology
  • Measures, J.C., Gould, G.W., Interactions of micro‐organisms with the environment of intermediate moisture foods (1976) Intermediate Moisture Foods, pp. 281-296. , Davies, R., Birch, G. G., Parker, K. J.,. Essex, Applied Science Publishers
  • Norrish, R.S., An equation for the activity coefficient and equilibrium relative humidities of water in confectionery syrups (1966) Journal of Food Technology, 1, pp. 25-39
  • Robinson, R.A., Stokes, R.M., (1965) Electrolyte Solutions, , 2nd edn, (revised). London:, Butterworths
  • Ross, K.D., Estimation of water activity in intermediate moisture foods (1975) Food Technology, Champaign, 29 (3), pp. 26-34
  • Troller, J., Christian, J.H.B., (1978) Water Activity and Food, , London and New York:, Academic Press

Citas:

---------- APA ----------
CHIRIFE, J., FONTAN, C.F. & SCORZA, O.C. (1981) . The Intracellular Water Activity of Bacteria in Relation to the Water Activity of the Growth Medium. Journal of Applied Bacteriology, 50(3), 475-479.
http://dx.doi.org/10.1111/j.1365-2672.1981.tb04250.x
---------- CHICAGO ----------
CHIRIFE, J., FONTAN, C.F., SCORZA, O.C. "The Intracellular Water Activity of Bacteria in Relation to the Water Activity of the Growth Medium" . Journal of Applied Bacteriology 50, no. 3 (1981) : 475-479.
http://dx.doi.org/10.1111/j.1365-2672.1981.tb04250.x
---------- MLA ----------
CHIRIFE, J., FONTAN, C.F., SCORZA, O.C. "The Intracellular Water Activity of Bacteria in Relation to the Water Activity of the Growth Medium" . Journal of Applied Bacteriology, vol. 50, no. 3, 1981, pp. 475-479.
http://dx.doi.org/10.1111/j.1365-2672.1981.tb04250.x
---------- VANCOUVER ----------
CHIRIFE, J., FONTAN, C.F., SCORZA, O.C. The Intracellular Water Activity of Bacteria in Relation to the Water Activity of the Growth Medium. J. Appl. Bacteriol. 1981;50(3):475-479.
http://dx.doi.org/10.1111/j.1365-2672.1981.tb04250.x