Multifactorial fungal inactivation combining thermosonication and antimicrobials

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The combined effect of simultaneous application of heat treatments, low frequency ultrasound (20kHz) at different amplitudes, on Aspergillus flavus and Penicillium digitatum spore viability suspended in laboratory broth formulated at different aw (0.99 or 0.95) and pH (5.5 or 3.0), with or without v...

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Autores principales:	López-Malo, A., Palou, E., Jiménez-Fernández, M., Alzamora, S.M., Guerrero, S.
Formato:	JOUR
Materias:	Antimicrobial agents Fungal inactivation Multifactorial preservation Ultrasound treatments Fungus protection Heat treatment pH effects Potassium Sorption Ultrasonic applications Thermosonication Ultrasound treatment Food preservation Aspergillus Aspergillus flavus Bacteria (microorganisms) Penicillium Penicillium digitatum
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_02608774_v67_n1-2_p87_LopezMalo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_02608774_v67_n1-2_p87_LopezMalo
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spelling	todo:paper_02608774_v67_n1-2_p87_LopezMalo2023-10-03T15:12:17Z Multifactorial fungal inactivation combining thermosonication and antimicrobials López-Malo, A. Palou, E. Jiménez-Fernández, M. Alzamora, S.M. Guerrero, S. Antimicrobial agents Fungal inactivation Multifactorial preservation Ultrasound treatments Fungus protection Heat treatment pH effects Potassium Sorption Ultrasonic applications Antimicrobial agents Fungal inactivation Multifactorial preservation Thermosonication Ultrasound treatment Food preservation Aspergillus Aspergillus flavus Bacteria (microorganisms) Penicillium Penicillium digitatum The combined effect of simultaneous application of heat treatments, low frequency ultrasound (20kHz) at different amplitudes, on Aspergillus flavus and Penicillium digitatum spore viability suspended in laboratory broth formulated at different aw (0.99 or 0.95) and pH (5.5 or 3.0), with or without vanillin or potassium sorbate were evaluated. An ultrasonic horn (13mm) was submerged into the broth, heat and ultrasound was continuously applied. Survival curves were obtained, and D and z values calculated. For aw 0.99, increasing ultrasound amplitude and reducing pH resulted in reduced D values. At constant aw, D values decreased with pH reduction. At constant pH, D values were lower for aw 0.99 than for 0.95. In general, D values were lower for thermosonication treatments than for thermal treatments. When potassium sorbate or vanillin was added and thermosonication treatment was applied at increased amplitude, lower D values were obtained. © 2004 Elsevier Ltd. All rights reserved. Fil:López-Malo, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Alzamora, S.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Guerrero, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_02608774_v67_n1-2_p87_LopezMalo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Antimicrobial agents Fungal inactivation Multifactorial preservation Ultrasound treatments Fungus protection Heat treatment pH effects Potassium Sorption Ultrasonic applications Antimicrobial agents Fungal inactivation Multifactorial preservation Thermosonication Ultrasound treatment Food preservation Aspergillus Aspergillus flavus Bacteria (microorganisms) Penicillium Penicillium digitatum
spellingShingle	Antimicrobial agents Fungal inactivation Multifactorial preservation Ultrasound treatments Fungus protection Heat treatment pH effects Potassium Sorption Ultrasonic applications Antimicrobial agents Fungal inactivation Multifactorial preservation Thermosonication Ultrasound treatment Food preservation Aspergillus Aspergillus flavus Bacteria (microorganisms) Penicillium Penicillium digitatum López-Malo, A. Palou, E. Jiménez-Fernández, M. Alzamora, S.M. Guerrero, S. Multifactorial fungal inactivation combining thermosonication and antimicrobials
topic_facet	Antimicrobial agents Fungal inactivation Multifactorial preservation Ultrasound treatments Fungus protection Heat treatment pH effects Potassium Sorption Ultrasonic applications Antimicrobial agents Fungal inactivation Multifactorial preservation Thermosonication Ultrasound treatment Food preservation Aspergillus Aspergillus flavus Bacteria (microorganisms) Penicillium Penicillium digitatum
description	The combined effect of simultaneous application of heat treatments, low frequency ultrasound (20kHz) at different amplitudes, on Aspergillus flavus and Penicillium digitatum spore viability suspended in laboratory broth formulated at different aw (0.99 or 0.95) and pH (5.5 or 3.0), with or without vanillin or potassium sorbate were evaluated. An ultrasonic horn (13mm) was submerged into the broth, heat and ultrasound was continuously applied. Survival curves were obtained, and D and z values calculated. For aw 0.99, increasing ultrasound amplitude and reducing pH resulted in reduced D values. At constant aw, D values decreased with pH reduction. At constant pH, D values were lower for aw 0.99 than for 0.95. In general, D values were lower for thermosonication treatments than for thermal treatments. When potassium sorbate or vanillin was added and thermosonication treatment was applied at increased amplitude, lower D values were obtained. © 2004 Elsevier Ltd. All rights reserved.
format	JOUR
author	López-Malo, A. Palou, E. Jiménez-Fernández, M. Alzamora, S.M. Guerrero, S.
author_facet	López-Malo, A. Palou, E. Jiménez-Fernández, M. Alzamora, S.M. Guerrero, S.
author_sort	López-Malo, A.
title	Multifactorial fungal inactivation combining thermosonication and antimicrobials
title_short	Multifactorial fungal inactivation combining thermosonication and antimicrobials
title_full	Multifactorial fungal inactivation combining thermosonication and antimicrobials
title_fullStr	Multifactorial fungal inactivation combining thermosonication and antimicrobials
title_full_unstemmed	Multifactorial fungal inactivation combining thermosonication and antimicrobials
title_sort	multifactorial fungal inactivation combining thermosonication and antimicrobials
url	http://hdl.handle.net/20.500.12110/paper_02608774_v67_n1-2_p87_LopezMalo
work_keys_str_mv	AT lopezmaloa multifactorialfungalinactivationcombiningthermosonicationandantimicrobials AT paloue multifactorialfungalinactivationcombiningthermosonicationandantimicrobials AT jimenezfernandezm multifactorialfungalinactivationcombiningthermosonicationandantimicrobials AT alzamorasm multifactorialfungalinactivationcombiningthermosonicationandantimicrobials AT guerreros multifactorialfungalinactivationcombiningthermosonicationandantimicrobials
_version_	1807316205860552704

Multifactorial fungal inactivation combining thermosonication and antimicrobials

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