Multifactorial fungal inactivation combining thermosonication and antimicrobials

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...

Descripción completa

Detalles Bibliográficos
Autores principales:	López-Malo Vigil, Aurelio, Alzamora, Stella Maris, Guerrero, Sandra
Publicado:	2005
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:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02608774_v67_n1-2_p87_LopezMalo 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	paper:paper_02608774_v67_n1-2_p87_LopezMalo
record_format	dspace
spelling	paper:paper_02608774_v67_n1-2_p87_LopezMalo2023-06-08T15:22:35Z Multifactorial fungal inactivation combining thermosonication and antimicrobials López-Malo Vigil, Aurelio Alzamora, Stella Maris Guerrero, Sandra 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. 2005 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02608774_v67_n1-2_p87_LopezMalo 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 Vigil, Aurelio Alzamora, Stella Maris Guerrero, Sandra 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.
author	López-Malo Vigil, Aurelio Alzamora, Stella Maris Guerrero, Sandra
author_facet	López-Malo Vigil, Aurelio Alzamora, Stella Maris Guerrero, Sandra
author_sort	López-Malo Vigil, Aurelio
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
publishDate	2005
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02608774_v67_n1-2_p87_LopezMalo http://hdl.handle.net/20.500.12110/paper_02608774_v67_n1-2_p87_LopezMalo
work_keys_str_mv	AT lopezmalovigilaurelio multifactorialfungalinactivationcombiningthermosonicationandantimicrobials AT alzamorastellamaris multifactorialfungalinactivationcombiningthermosonicationandantimicrobials AT guerrerosandra multifactorialfungalinactivationcombiningthermosonicationandantimicrobials
_version_	1768545644920700928

Multifactorial fungal inactivation combining thermosonication and antimicrobials

Ejemplares similares