Interaction between potassium sorbate, oil and tween 20: Its effect on the growth and inhibition of Z bailii in model salad dressings

The effect of the interaction between potassium sorbate (KS), oil and Tween®20 on the growth and inhibition of Z bailii in model salad dressings was studied. Z. bailii grew in emulsions containing 110 and 230 g/kg of oil and the addition of 0.5 g/kg of KS inhibited growth. When the oil content was r...

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Detalles Bibliográficos
Autores principales:	Castro, M., Garro, O., Gerschenson, L.N., Campos, C.A.
Formato:	JOUR
Materias:	Zygosaccharomyces Zygosaccharomyces bailii
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_01496085_v23_n1_p47_Castro
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_01496085_v23_n1_p47_Castro
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spelling	todo:paper_01496085_v23_n1_p47_Castro2023-10-03T15:01:05Z Interaction between potassium sorbate, oil and tween 20: Its effect on the growth and inhibition of Z bailii in model salad dressings Castro, M. Garro, O. Gerschenson, L.N. Campos, C.A. Zygosaccharomyces Zygosaccharomyces bailii Zygosaccharomyces bailii The effect of the interaction between potassium sorbate (KS), oil and Tween®20 on the growth and inhibition of Z bailii in model salad dressings was studied. Z. bailii grew in emulsions containing 110 and 230 g/kg of oil and the addition of 0.5 g/kg of KS inhibited growth. When the oil content was raised to 460 g/kg, a steep death rate curve was observed and the effect of KS addition was hidden by the inhibitory action of the high oil level. Tween®20 action depended on oil level: for emulsions containing 110 or 230 g/kg, a depression in the activity of KS was observed. This behavior was attributed to the decrease in the free form of the preservative due to the partition between surfactant micelles and the water. In contrast, when the oil content was 460 g/kg, KS activity was enhanced in spite of the decrease in the amount of its free form. These results highlight the importance of considering ingredient interactions when evaluating shelf-life. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01496085_v23_n1_p47_Castro
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Zygosaccharomyces Zygosaccharomyces bailii Zygosaccharomyces bailii
spellingShingle	Zygosaccharomyces Zygosaccharomyces bailii Zygosaccharomyces bailii Castro, M. Garro, O. Gerschenson, L.N. Campos, C.A. Interaction between potassium sorbate, oil and tween 20: Its effect on the growth and inhibition of Z bailii in model salad dressings
topic_facet	Zygosaccharomyces Zygosaccharomyces bailii Zygosaccharomyces bailii
description	The effect of the interaction between potassium sorbate (KS), oil and Tween®20 on the growth and inhibition of Z bailii in model salad dressings was studied. Z. bailii grew in emulsions containing 110 and 230 g/kg of oil and the addition of 0.5 g/kg of KS inhibited growth. When the oil content was raised to 460 g/kg, a steep death rate curve was observed and the effect of KS addition was hidden by the inhibitory action of the high oil level. Tween®20 action depended on oil level: for emulsions containing 110 or 230 g/kg, a depression in the activity of KS was observed. This behavior was attributed to the decrease in the free form of the preservative due to the partition between surfactant micelles and the water. In contrast, when the oil content was 460 g/kg, KS activity was enhanced in spite of the decrease in the amount of its free form. These results highlight the importance of considering ingredient interactions when evaluating shelf-life.
format	JOUR
author	Castro, M. Garro, O. Gerschenson, L.N. Campos, C.A.
author_facet	Castro, M. Garro, O. Gerschenson, L.N. Campos, C.A.
author_sort	Castro, M.
title	Interaction between potassium sorbate, oil and tween 20: Its effect on the growth and inhibition of Z bailii in model salad dressings
title_short	Interaction between potassium sorbate, oil and tween 20: Its effect on the growth and inhibition of Z bailii in model salad dressings
title_full	Interaction between potassium sorbate, oil and tween 20: Its effect on the growth and inhibition of Z bailii in model salad dressings
title_fullStr	Interaction between potassium sorbate, oil and tween 20: Its effect on the growth and inhibition of Z bailii in model salad dressings
title_full_unstemmed	Interaction between potassium sorbate, oil and tween 20: Its effect on the growth and inhibition of Z bailii in model salad dressings
title_sort	interaction between potassium sorbate, oil and tween 20: its effect on the growth and inhibition of z bailii in model salad dressings
url	http://hdl.handle.net/20.500.12110/paper_01496085_v23_n1_p47_Castro
work_keys_str_mv	AT castrom interactionbetweenpotassiumsorbateoilandtween20itseffectonthegrowthandinhibitionofzbailiiinmodelsaladdressings AT garroo interactionbetweenpotassiumsorbateoilandtween20itseffectonthegrowthandinhibitionofzbailiiinmodelsaladdressings AT gerschensonln interactionbetweenpotassiumsorbateoilandtween20itseffectonthegrowthandinhibitionofzbailiiinmodelsaladdressings AT camposca interactionbetweenpotassiumsorbateoilandtween20itseffectonthegrowthandinhibitionofzbailiiinmodelsaladdressings
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Interaction between potassium sorbate, oil and tween 20: Its effect on the growth and inhibition of Z bailii in model salad dressings

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