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Abstract:

The inhibitory action of potassium sorbate (KS) degradation products against Staphylococcus aureus growth was examined in model aqueous systems. KS degradation products formation was induced by the storage at 70°C for 7 days or at 37°C for 90 days of aqueous systems containing basically brain heart infusion, yeast extract and different amounts of KS at pH 5.5. After storage, residual amounts of KS were measured and each system was inoculated with a pool of three S. aureus strains at 104 colony forming units/ml. Degradation products from KS generally inhibited S. aureus growth by two to three log cycles. However, the population of S. aureus reached a higher level when the degradation products were formed at 37°C suggesting that the nature of the degradation products seemed to depend on the temperature at which they were produced. The inhibitory activity produced by KS degradation products along with residual amounts of KS was smaller than the one produced by the initial amounts of the preservative. Copyright (C) 2000 Elsevier Science B.V.

Registro:

Documento: Artículo
Título:Inhibitory action of potassium sorbate degradation products against Staphylococcus aureus growth in laboratory media
Autor:Campos, C.A.; Alzamora, S.M.; Gerschenson, L.N.
Filiación:Departamento de Industrias, Fac. Cie. Exact. y Nat., Univ. B., Buenos Aires, Argentina
Palabras clave:Inhibitory action; Sorbate degradation products; Staphylococcus aureus; drug metabolite; sorbate potassium; antibacterial activity; article; bacterium culture; drug degradation; Staphylococcus aureus; storage; temperature; Culture Media; Food Preservatives; Laboratories; Sorbic Acid; Staphylococcus aureus; Staphylococcus aureus
Año:2000
Volumen:54
Número:1-2
Página de inicio:117
Página de fin:122
DOI: http://dx.doi.org/10.1016/S0168-1605(99)00168-3
Título revista:International Journal of Food Microbiology
Título revista abreviado:Int. J. Food Microbiol.
ISSN:01681605
CODEN:IJFMD
CAS:Culture Media; Food Preservatives; Sorbic Acid, 110-44-1
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01681605_v54_n1-2_p117_Campos

Referencias:

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Citas:

---------- APA ----------
Campos, C.A., Alzamora, S.M. & Gerschenson, L.N. (2000) . Inhibitory action of potassium sorbate degradation products against Staphylococcus aureus growth in laboratory media. International Journal of Food Microbiology, 54(1-2), 117-122.
http://dx.doi.org/10.1016/S0168-1605(99)00168-3
---------- CHICAGO ----------
Campos, C.A., Alzamora, S.M., Gerschenson, L.N. "Inhibitory action of potassium sorbate degradation products against Staphylococcus aureus growth in laboratory media" . International Journal of Food Microbiology 54, no. 1-2 (2000) : 117-122.
http://dx.doi.org/10.1016/S0168-1605(99)00168-3
---------- MLA ----------
Campos, C.A., Alzamora, S.M., Gerschenson, L.N. "Inhibitory action of potassium sorbate degradation products against Staphylococcus aureus growth in laboratory media" . International Journal of Food Microbiology, vol. 54, no. 1-2, 2000, pp. 117-122.
http://dx.doi.org/10.1016/S0168-1605(99)00168-3
---------- VANCOUVER ----------
Campos, C.A., Alzamora, S.M., Gerschenson, L.N. Inhibitory action of potassium sorbate degradation products against Staphylococcus aureus growth in laboratory media. Int. J. Food Microbiol. 2000;54(1-2):117-122.
http://dx.doi.org/10.1016/S0168-1605(99)00168-3