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Abstract:

This work examines the effect of phosphate buffer on the behaviour of Staphylococcus aureus ATCC 6538 P grown in laboratory media of reduced water activity (aw) achieved by adding different solutes (salts, sugars, and glycerol). A strong inhibition of S. aureus growth was observed in the systems containing phosphate buffer and to which NaCl of KCl were added to lower aw to about 0.90. This inhibition, however, was not found when non-electrolytes (sucrose, glucose or glycerol) were used to depress aw. © 1986.

Registro:

Documento: Artículo
Título:Effect of phosphate buffer on Staphylococcus aureas growth at a reduced water activity
Autor:Vaamonde, G.; Chirife, J.
Filiación:Food Microbiology Laboratory, Department of Organic Chemistry, Faculty of Exact and Natural Sciences, 1428 Buenos Aires, Argentina
PROIPA (CONICET-Faculty of Exact and Natural Sciences), Department of Industries, University of Buenos Aires, 1428 Buenos Aires, Argentina
Palabras clave:Buffer; phosphate; Staphylococcus aureus; Water activity; phosphate; bacterial growth; growth inhibition; nonhuman; osmotic pressure; staphylococcus aureus
Año:1986
Volumen:3
Número:1
Página de inicio:51
Página de fin:55
DOI: http://dx.doi.org/10.1016/0168-1605(86)90040-1
Título revista:International Journal of Food Microbiology
Título revista abreviado:Int. J. Food Microbiol.
ISSN:01681605
CODEN:IJFMD
CAS:phosphate, 14066-19-4, 14265-44-2
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01681605_v3_n1_p51_Vaamonde

Referencias:

  • Anderson, Witter, Glutamine and proline accumulation by Staphylococcus aureus with reduction in water activity (1982) Appl. Environ. Microbiol., 43, pp. 1501-1503
  • Benmergui, Ferro Fontán, Chirife, The prediction of water activity in aqueous solutions in connection with intermediate moisture foods. I. aw prediction in single aqueous electrolyte solutions (1979) International Journal of Food Science & Technology, 14, pp. 625-637
  • Chirife, Ferro Fontán, Benmergui, The prediction of water activity in aqueous solutions in connection with intermediate moisture foods. IV. aw prediction in aqueous non-electrolyte solutions (1980) International Journal of Food Science & Technology, 15, pp. 59-70
  • Chirife, Favetto, Scorza, The water activity of common liquid bacteriological media (1981) J. Appl. Bacteriol., 53, pp. 219-222
  • Chirife, Ferro Fontán, Scorza, The intracellular water activity of bacteria in relation to the water activity of the growth medium (1981) J. Appl. Bacteriol., 50, pp. 475-479
  • Christian, Waltho, The composition of Staphylococcus aureus in relation to the water activity of the growth media (1964) J. Gen. Microbiol., 35, pp. 205-213
  • Gould, Present state of knowledge of aw effects on microorganisms (1985) Proc. Int. Symp. Properties of Water in Relation to Food Quality and Stability, pp. 229-245. , D. Simatos, J.L. Multon, Martinus Nijhoff, Dordrecht
  • Gould, Measures, Water relations in single cells (1977) Phil. Trans. R. Soc. London, B., 278, pp. 151-166
  • Gould, Brown, Fletcher, Mechanisms of action of food preservation procedures (1983) Food Microbiology: Advances and Prospects, pp. 67-83. , T.A. Roberts, F.A. Skinner, Academic Press, London, New York
  • Lotter, Leistner, Minimal water activity for enterotoxin A production and growth of Staphylococcus aureus (1978) Appl. Environ. Microbiol., 36, p. 377
  • Troller, Effect of water activity on enterotoxin B production and growth of Staphylococcus aureus (1971) Appl. Microbiol., 21, pp. 435-440
  • Vaamonde, Chirife, Scorza, An examination of the minimal water activity for Staphylococcus aureus ATCC 6538 P growth in laboratory media adjusted with less conventional solutes (1982) Journal of Food Science, 47, pp. 1259-1262

Citas:

---------- APA ----------
Vaamonde, G. & Chirife, J. (1986) . Effect of phosphate buffer on Staphylococcus aureas growth at a reduced water activity. International Journal of Food Microbiology, 3(1), 51-55.
http://dx.doi.org/10.1016/0168-1605(86)90040-1
---------- CHICAGO ----------
Vaamonde, G., Chirife, J. "Effect of phosphate buffer on Staphylococcus aureas growth at a reduced water activity" . International Journal of Food Microbiology 3, no. 1 (1986) : 51-55.
http://dx.doi.org/10.1016/0168-1605(86)90040-1
---------- MLA ----------
Vaamonde, G., Chirife, J. "Effect of phosphate buffer on Staphylococcus aureas growth at a reduced water activity" . International Journal of Food Microbiology, vol. 3, no. 1, 1986, pp. 51-55.
http://dx.doi.org/10.1016/0168-1605(86)90040-1
---------- VANCOUVER ----------
Vaamonde, G., Chirife, J. Effect of phosphate buffer on Staphylococcus aureas growth at a reduced water activity. Int. J. Food Microbiol. 1986;3(1):51-55.
http://dx.doi.org/10.1016/0168-1605(86)90040-1