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Abstract:

A theoretical approach was used to predict the water activity (aw) at 15°C and 35°C of selected saturated salt solutions used as standards in the range of microbial growth (∼0.57–0.97). For this purpose a rigorous thermodynamic model to predict osmotic coefficient was used. The results agreed very well with experimental measurements at 15°C and 35°C for most salts studied, which included NaBr, NaCl, (NH4)2SO4, KCl, BaCl2, and K2SO4. For KNO3 the agreement at the higher temperature was somewhat less satisfactory and the reasons for this behavior are discussed. Copyright © 1986, Wiley Blackwell. All rights reserved

Registro:

Documento: Artículo
Título:Theoretical Prediction of the Water Activity of Standard Saturated Salt Solutions at Various Temperatures
Autor:Kitic, D.; Pereira Jardim, D.C.; Favetto, G.J.; Resnik, S.L.; Chirife, J.
Filiación:Depto. de Industries, Facultad de Ciencias Exactas Y Naturales, Univ. de Buenos Aires, Buenos Aires, 1428, Argentina
Año:1986
Volumen:51
Número:4
Página de inicio:1037
Página de fin:1041
DOI: http://dx.doi.org/10.1111/j.1365-2621.1986.tb11227.x
Título revista:Journal of Food Science
Título revista abreviado:J. Food. Sci.
ISSN:00221147
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221147_v51_n4_p1037_Kitic

Referencias:

  • Ananthaswamy, J., Atkinson, G., Thermodynamics of concentrated electrolyte mixtures (1984) 4. Pitzer-Debye-Heckel limiting slopes for water from 0 to 100°C and from 1 atm to 1 kbar. J. Chem. Eng. Data, 29 (1), p. 81
  • Bromley, L., Thermodynamic properties of strong electrolytes in aqueous solutions (1973) AIChE Journal, 19, p. 313
  • Chirife, J., Favetto, G., Ferro Fonátan, C., Resnik, S.L., The water activity of standard saturated salt solutions in the range of intermediate moisture foods (1983) Lebensmittel.-Wissenschaft. Technol., 16, p. 36
  • Chirife, J., Resnik, S.L., Unsaturated solutions of sodium chloride as reference sources of water activity at various temperatures (1984) Journal of Food Science, 49, p. 1486
  • (1976) Meat Products, Regulation, , Nr. 77/99, Dec. 21., Economic European Community, Bruxelles, Belgium
  • (1979) Recommended International Code of Hygienic Practice for Ground Nuts (Peanuts), , CAC/RCP 22‐1979., Food and Agriculture Organization of the United Nations, World Health Organization, Rome, Italy
  • (1973) Federal Register, 38, p. 16. , Part III, 2398, Food & Drug Administration, Washington, DC
  • Gál, S., Recent development in techniques for obtaining complete sorption isotherms (1981) Water Activity: Influences on Food Quality, p. 89. , L.B. Rockland, G.F. Stewart, Academic Press, New York
  • Greenspan, L., Humidity fixed points of binary saturated aqueous solutions (1977) J. Res. Nat. Bur. Stand. A, Phys. Chem, 81 A, p. 89
  • Harned, H.S., Owen, B.B., (1958) Physical Chemistry of Electrolyte Solutions, , 3rd ed, Reinhold Publishing Co., New York
  • Holmes, H.F., Mesmer, R.E., Thermodynamic properties of aqueous solutions of the alkali metal chlorides to 250°C (1983) J. Phys. Chem., 87, p. 1242
  • (1926) Physics, Chemistry and Technology., , Mc Graw Hill Co., New York
  • Kitic, D., Resnik, S.L., Chirife, J., Solutions of lithium chloride as reference sources of water activity above 0.6 and between 5° and 45°C (1986) Lebensmittel. Wiss. Technol
  • Labuza, T.P., Ascott, K., Tatini, S.R., Lee, R.Y., Flink, J.M., Mc Call, W., Water activity determination: A collaborative study of different methods (1976) J. Food Sci., 41, p. 910
  • Labuza, T.P., Kaanane, A., Chen, J.Y., Effect of temperature on the moisture sorption isotherms and water activity shift of two dehydrated foods (1985) J. Food Sci., 50, p. 385
  • Pitzer, K.S., Thermodynamics of Electrolytes I. Theoretical basis and general equations (1973) J. Phys. Chem., 77, p. 268
  • Pitzer, K.S., Mayorga, G., Thermodynamics of electrolytes II. Activity and osmotic coefficients for strong electrolytes with one or both ions univalent (1973) J. Phys. Chem., 77, p. 2300
  • Resnik, S.L., Favetto, G., Chirife, J., Ferro Fontan, C., A world survey of water activity of selected saturated salt solutions used as standards at 25°C (1984) Journal of Food Science, 49, p. 510
  • Robinson, R.A., Stokes, R.M., (1965) Electrolyte Solutions, , 2nd. ed, Reinhold Publishing Co., New York
  • Rockland, L.B., Saturated salt solutions for static control of humidity between 5° and 40°C (1960) Anal. Chem., 32, p. 1375
  • Scatchard, G., The excess free energy and related properties of solutions containing electrolytes (1968) J. Am. Chem. Soc., 90, p. 3124
  • Scatchard, G., Rush, R.M., Johnson, J.S., Osmotic and activity coefficients for binary mixtures of sodium chloride, sodium sulphate, magnesium sulphate, and magnesium chloride in water at 25°C (1970) The Journal of Physical Chemistry, 74, p. 3786
  • Scott, V.N., Bernard, D.J., Influence of temperature on the measurement of water activity of foods and salt systems (1983) Journal of Food Science, 48, p. 552
  • Silvester, L.F., Pitzer, K.S., Thermodynamics of electrolytes X. Entalphy and the effect of temperature on the activity coefficients (1978) J. Solution Chem., 7, p. 324
  • Stokes, R.H., Robinson, R.A., Standard solutions for humidity control at 25°C (1949) Industrial & Engineering Chemistry, 41, p. 2013
  • Stoloff, L., Calibration of water activity measuring instruments and devices: collaborative study (1978) J. Assoc. Off. Anal. Chem., 61, p. 1166
  • Tran, T.T., Lenzi, F., Methods of estimating the water activity of supersaturated aqueous solutions (1974) The Canadian Journal of Chemical Engineering, 52, p. 798
  • Troller, J.A., Christian, J.H.B., (1978) Water Activity and Food, , Academic Press, New York
  • Wexler, A., Hasegawa, S., Relative humidity‐temperature range of 0°C to 50°C (1954) Journal of Research of the National Bureau of Standards, 53, p. 19
  • Young, J.F., Humidity control in the laboratory using salt solutions‐a review (1967) J. Appl. Chem., 17, p. 24

Citas:

---------- APA ----------
Kitic, D., Pereira Jardim, D.C., Favetto, G.J., Resnik, S.L. & Chirife, J. (1986) . Theoretical Prediction of the Water Activity of Standard Saturated Salt Solutions at Various Temperatures. Journal of Food Science, 51(4), 1037-1041.
http://dx.doi.org/10.1111/j.1365-2621.1986.tb11227.x
---------- CHICAGO ----------
Kitic, D., Pereira Jardim, D.C., Favetto, G.J., Resnik, S.L., Chirife, J. "Theoretical Prediction of the Water Activity of Standard Saturated Salt Solutions at Various Temperatures" . Journal of Food Science 51, no. 4 (1986) : 1037-1041.
http://dx.doi.org/10.1111/j.1365-2621.1986.tb11227.x
---------- MLA ----------
Kitic, D., Pereira Jardim, D.C., Favetto, G.J., Resnik, S.L., Chirife, J. "Theoretical Prediction of the Water Activity of Standard Saturated Salt Solutions at Various Temperatures" . Journal of Food Science, vol. 51, no. 4, 1986, pp. 1037-1041.
http://dx.doi.org/10.1111/j.1365-2621.1986.tb11227.x
---------- VANCOUVER ----------
Kitic, D., Pereira Jardim, D.C., Favetto, G.J., Resnik, S.L., Chirife, J. Theoretical Prediction of the Water Activity of Standard Saturated Salt Solutions at Various Temperatures. J. Food. Sci. 1986;51(4):1037-1041.
http://dx.doi.org/10.1111/j.1365-2621.1986.tb11227.x