Antimicrobial performance of potassium sorbate supported in tapioca starch edible films

The release and antimicrobial activity of potassium sorbate (KS) supported in tapioca starch-glycerol edible films prepared by different gelatinization/drying techniques against Zygosaccharomyces bailii was studied. Antimicrobial release in liquid media of different pHs (3.0-6.0) could be approximat...

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Autores principales: Flores, S., Haedo, A.S., Campos, C., Gerschenson, L.
Formato: JOUR
Materias:
Antimicrobial performance
Edible film
Filmmaking method
Preservative release
Sorbates
Starch
Drying
Food preservatives
Gelation
pH effects
Potassium compounds
Rate constants
Food products
Manihot esculenta
Zygosaccharomyces
Zygosaccharomyces bailii
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_14382377_v225_n3-4_p375_Flores
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_14382377_v225_n3-4_p375_Flores
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spelling todo:paper_14382377_v225_n3-4_p375_Flores2023-10-03T16:16:04Z Antimicrobial performance of potassium sorbate supported in tapioca starch edible films Flores, S. Haedo, A.S. Campos, C. Gerschenson, L. Antimicrobial performance Edible film Filmmaking method Preservative release Sorbates Starch Drying Food preservatives Gelation pH effects Potassium compounds Rate constants Starch Antimicrobial performance Edible film Filmmaking method Preservative release Sorbates Food products Manihot esculenta Zygosaccharomyces Zygosaccharomyces bailii The release and antimicrobial activity of potassium sorbate (KS) supported in tapioca starch-glycerol edible films prepared by different gelatinization/drying techniques against Zygosaccharomyces bailii was studied. Antimicrobial release in liquid media of different pHs (3.0-6.0) could be approximated to a pseudo first-order kinetic model and was almost accomplished after 30 min. Filmmaking method involving slow gelatinization and drying rate resulted in the highest fraction of KS released at equilibrium. Rate constant was higher when pH of the receiving media was 4.5 and fast gelatinization/fast drying had been used. The effectiveness of the preservative released for controlling the microbial growth depended on the pH of the receiving media, being higher at pH 3.0. No effect of filmmaking method was observed. In relation to film effectiveness as a barrier to contamination, it was observed that the preservative was available to prevent an external Z. bailii contamination and also to control yeast growth in an acidified (pH 4.5) high water activity (a w = 0.980) semisolid product. © Springer-Verlag 2007. Fil:Flores, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Campos, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Gerschenson, L. 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_14382377_v225_n3-4_p375_Flores
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 performance
Edible film
Filmmaking method
Preservative release
Sorbates
Starch
Drying
Food preservatives
Gelation
pH effects
Potassium compounds
Rate constants
Starch
Antimicrobial performance
Edible film
Filmmaking method
Preservative release
Sorbates
Food products
Manihot esculenta
Zygosaccharomyces
Zygosaccharomyces bailii
spellingShingle Antimicrobial performance
Edible film
Filmmaking method
Preservative release
Sorbates
Starch
Drying
Food preservatives
Gelation
pH effects
Potassium compounds
Rate constants
Starch
Antimicrobial performance
Edible film
Filmmaking method
Preservative release
Sorbates
Food products
Manihot esculenta
Zygosaccharomyces
Zygosaccharomyces bailii
Flores, S.
Haedo, A.S.
Campos, C.
Gerschenson, L.
Antimicrobial performance of potassium sorbate supported in tapioca starch edible films
topic_facet Antimicrobial performance
Edible film
Filmmaking method
Preservative release
Sorbates
Starch
Drying
Food preservatives
Gelation
pH effects
Potassium compounds
Rate constants
Starch
Antimicrobial performance
Edible film
Filmmaking method
Preservative release
Sorbates
Food products
Manihot esculenta
Zygosaccharomyces
Zygosaccharomyces bailii
description The release and antimicrobial activity of potassium sorbate (KS) supported in tapioca starch-glycerol edible films prepared by different gelatinization/drying techniques against Zygosaccharomyces bailii was studied. Antimicrobial release in liquid media of different pHs (3.0-6.0) could be approximated to a pseudo first-order kinetic model and was almost accomplished after 30 min. Filmmaking method involving slow gelatinization and drying rate resulted in the highest fraction of KS released at equilibrium. Rate constant was higher when pH of the receiving media was 4.5 and fast gelatinization/fast drying had been used. The effectiveness of the preservative released for controlling the microbial growth depended on the pH of the receiving media, being higher at pH 3.0. No effect of filmmaking method was observed. In relation to film effectiveness as a barrier to contamination, it was observed that the preservative was available to prevent an external Z. bailii contamination and also to control yeast growth in an acidified (pH 4.5) high water activity (a w = 0.980) semisolid product. © Springer-Verlag 2007.
format JOUR
author Flores, S.
Haedo, A.S.
Campos, C.
Gerschenson, L.
author_facet Flores, S.
Haedo, A.S.
Campos, C.
Gerschenson, L.
author_sort Flores, S.
title Antimicrobial performance of potassium sorbate supported in tapioca starch edible films
title_short Antimicrobial performance of potassium sorbate supported in tapioca starch edible films
title_full Antimicrobial performance of potassium sorbate supported in tapioca starch edible films
title_fullStr Antimicrobial performance of potassium sorbate supported in tapioca starch edible films
title_full_unstemmed Antimicrobial performance of potassium sorbate supported in tapioca starch edible films
title_sort antimicrobial performance of potassium sorbate supported in tapioca starch edible films
url http://hdl.handle.net/20.500.12110/paper_14382377_v225_n3-4_p375_Flores
work_keys_str_mv AT floress antimicrobialperformanceofpotassiumsorbatesupportedintapiocastarchediblefilms
AT haedoas antimicrobialperformanceofpotassiumsorbatesupportedintapiocastarchediblefilms
AT camposc antimicrobialperformanceofpotassiumsorbatesupportedintapiocastarchediblefilms
AT gerschensonl antimicrobialperformanceofpotassiumsorbatesupportedintapiocastarchediblefilms
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