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Abstract:

The presence of Listeria monocytogenes could seriously affect the safety of nonpasteurized fruit juices. High-intensity ultrasound combined with mild heat treatment and natural antimicrobials may be an alternative technology for fruit juice preservation. The response of L. monocytogenes in orange juice to combined treatments involving moderate temperature (45°C), high-intensity ultrasound (600 W, 20 kHz, 95.2-μm wave amplitude), and the addition of different levels of vanillin (0, 1,000, 1,500, and 2,000 ppm), citral (0, 75, and 100 ppm), or both was investigated to find the most effective inactivation treatment. Nonlinear semilogarithmic survival curves were successfully fitted by the Weibull model. The presence of vanillin or citral greatly increased the bactericidal effect of thermosonication and changed the distribution of inactivation times. When both antimicrobials were added together and ultrasound was applied, narrowest frequency shapes, skewed to the right, with low variances and death time means between 1.6 and 2.6 min, were obtained. Orange juices with 1,500 or 1,000 ppm of vanillin and 100 ppm of citral were pleasant for the consumers. Copyright ©, International Association for Food Protection.

Registro:

Documento: Artículo
Título:Combined use of ultrasound and natural antimicrobials to inactivate Listeria monocytogenes in orange juice
Autor:Ferrante, S.; Guerrero, S.; Alzamora, S.M.
Filiación:Departamento de Industrias, Facultad de Ciencias Exactes Y Naturales, Ciudad Universitaria, 1428 Buenos Aires, Argentina
Consejo Nacional de Investigaciones Cientificas Y Tecnicas de la Republica Argentina, Argentina
Palabras clave:Listeria monocytogenes
Año:2007
Volumen:70
Número:8
Página de inicio:1850
Página de fin:1856
DOI: http://dx.doi.org/10.4315/0362-028X-70.8.1850
Título revista:Journal of Food Protection
Título revista abreviado:J. Food Protection
ISSN:0362028X
CODEN:JFPRD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0362028X_v70_n8_p1850_Ferrante

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Citas:

---------- APA ----------
Ferrante, S., Guerrero, S. & Alzamora, S.M. (2007) . Combined use of ultrasound and natural antimicrobials to inactivate Listeria monocytogenes in orange juice. Journal of Food Protection, 70(8), 1850-1856.
http://dx.doi.org/10.4315/0362-028X-70.8.1850
---------- CHICAGO ----------
Ferrante, S., Guerrero, S., Alzamora, S.M. "Combined use of ultrasound and natural antimicrobials to inactivate Listeria monocytogenes in orange juice" . Journal of Food Protection 70, no. 8 (2007) : 1850-1856.
http://dx.doi.org/10.4315/0362-028X-70.8.1850
---------- MLA ----------
Ferrante, S., Guerrero, S., Alzamora, S.M. "Combined use of ultrasound and natural antimicrobials to inactivate Listeria monocytogenes in orange juice" . Journal of Food Protection, vol. 70, no. 8, 2007, pp. 1850-1856.
http://dx.doi.org/10.4315/0362-028X-70.8.1850
---------- VANCOUVER ----------
Ferrante, S., Guerrero, S., Alzamora, S.M. Combined use of ultrasound and natural antimicrobials to inactivate Listeria monocytogenes in orange juice. J. Food Protection. 2007;70(8):1850-1856.
http://dx.doi.org/10.4315/0362-028X-70.8.1850