Effect of sweet solutes and potassium sorbate on the thermal inactivation of Z. bailii in model aqueous systems

The effect of solute type (glucose and polyols) and potassium sorbate (KS) on Zygosaccharomyces bailii thermal inactivation was evaluated in acidified aqueous model systems. Thermal inactivation curves obtained were fitted with Baranyi equation and parameters of this model were estimated and used to...

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Autores principales: Gliemmo, M.F., Campos, C.A., Gerschenson, L.N.
Formato: JOUR
Materias:
Potassium sorbate
Sweet solutes
Thermal inactivation
Z. bailii
Glucose
Heat treatment
Mathematical models
Potassium compounds
Food processing
Zygosaccharomyces
Zygosaccharomyces bailii
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09639969_v39_n4_p480_Gliemmo
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_09639969_v39_n4_p480_Gliemmo2023-10-03T15:54:39Z Effect of sweet solutes and potassium sorbate on the thermal inactivation of Z. bailii in model aqueous systems Gliemmo, M.F. Campos, C.A. Gerschenson, L.N. Potassium sorbate Sweet solutes Thermal inactivation Z. bailii Potassium sorbate Sweet solutes Thermal inactivation Z. bailii Glucose Heat treatment Mathematical models Potassium compounds Food processing Zygosaccharomyces Zygosaccharomyces bailii The effect of solute type (glucose and polyols) and potassium sorbate (KS) on Zygosaccharomyces bailii thermal inactivation was evaluated in acidified aqueous model systems. Thermal inactivation curves obtained were fitted with Baranyi equation and parameters of this model were estimated and used to establish the effect of water activity (a w), solute added and KS on Z. Bailii survival. Results obtained showed that addition of KS (0.025%, w/w) in general promoted an increase in the rate of heat inactivation. The use of polyols to depress a w to 0.985 in the absence of KS produced no effect on rate of heat inactivation. On the contrary, the use of glucose (10%, w/w) enhanced it. This trend was also observed when a w was depressed to 0.971 by glucose or xylitol or glucose-polyols. Moreover, a w depression in systems containing KS produced different effects on thermal inactivation rate depending on system composition. A synergic effect on the rate of inactivation of Z. bailii was observed by the combined use of KS and sorbitol, xylitol or glucose to depress a W to 0.985-0.988. This behavior might allow to decrease the severity of the thermal treatment with no detrimental effect on sterility. Fil:Gliemmo, M.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Campos, C.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Gerschenson, L.N. 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_09639969_v39_n4_p480_Gliemmo
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Potassium sorbate
Sweet solutes
Thermal inactivation
Z. bailii
Potassium sorbate
Sweet solutes
Thermal inactivation
Z. bailii
Glucose
Heat treatment
Mathematical models
Potassium compounds
Food processing
Zygosaccharomyces
Zygosaccharomyces bailii
spellingShingle Potassium sorbate
Sweet solutes
Thermal inactivation
Z. bailii
Potassium sorbate
Sweet solutes
Thermal inactivation
Z. bailii
Glucose
Heat treatment
Mathematical models
Potassium compounds
Food processing
Zygosaccharomyces
Zygosaccharomyces bailii
Gliemmo, M.F.
Campos, C.A.
Gerschenson, L.N.
Effect of sweet solutes and potassium sorbate on the thermal inactivation of Z. bailii in model aqueous systems
topic_facet Potassium sorbate
Sweet solutes
Thermal inactivation
Z. bailii
Potassium sorbate
Sweet solutes
Thermal inactivation
Z. bailii
Glucose
Heat treatment
Mathematical models
Potassium compounds
Food processing
Zygosaccharomyces
Zygosaccharomyces bailii
description The effect of solute type (glucose and polyols) and potassium sorbate (KS) on Zygosaccharomyces bailii thermal inactivation was evaluated in acidified aqueous model systems. Thermal inactivation curves obtained were fitted with Baranyi equation and parameters of this model were estimated and used to establish the effect of water activity (a w), solute added and KS on Z. Bailii survival. Results obtained showed that addition of KS (0.025%, w/w) in general promoted an increase in the rate of heat inactivation. The use of polyols to depress a w to 0.985 in the absence of KS produced no effect on rate of heat inactivation. On the contrary, the use of glucose (10%, w/w) enhanced it. This trend was also observed when a w was depressed to 0.971 by glucose or xylitol or glucose-polyols. Moreover, a w depression in systems containing KS produced different effects on thermal inactivation rate depending on system composition. A synergic effect on the rate of inactivation of Z. bailii was observed by the combined use of KS and sorbitol, xylitol or glucose to depress a W to 0.985-0.988. This behavior might allow to decrease the severity of the thermal treatment with no detrimental effect on sterility.
format JOUR
author Gliemmo, M.F.
Campos, C.A.
Gerschenson, L.N.
author_facet Gliemmo, M.F.
Campos, C.A.
Gerschenson, L.N.
author_sort Gliemmo, M.F.
title Effect of sweet solutes and potassium sorbate on the thermal inactivation of Z. bailii in model aqueous systems
title_short Effect of sweet solutes and potassium sorbate on the thermal inactivation of Z. bailii in model aqueous systems
title_full Effect of sweet solutes and potassium sorbate on the thermal inactivation of Z. bailii in model aqueous systems
title_fullStr Effect of sweet solutes and potassium sorbate on the thermal inactivation of Z. bailii in model aqueous systems
title_full_unstemmed Effect of sweet solutes and potassium sorbate on the thermal inactivation of Z. bailii in model aqueous systems
title_sort effect of sweet solutes and potassium sorbate on the thermal inactivation of z. bailii in model aqueous systems
url http://hdl.handle.net/20.500.12110/paper_09639969_v39_n4_p480_Gliemmo
work_keys_str_mv AT gliemmomf effectofsweetsolutesandpotassiumsorbateonthethermalinactivationofzbailiiinmodelaqueoussystems
AT camposca effectofsweetsolutesandpotassiumsorbateonthethermalinactivationofzbailiiinmodelaqueoussystems
AT gerschensonln effectofsweetsolutesandpotassiumsorbateonthethermalinactivationofzbailiiinmodelaqueoussystems
_version_ 1782028011154964480

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