Antimicrobial activity and physical properties of chitosan-tapioca starch based edible films and coatings

Antimicrobial activity of edible coating solutions based on chitosan and blends of chitosan-tapioca starch with or without potassium sorbate (KS) addition was studied. The agar well diffusion assay showed an antagonist effect on the efficiency of chitosan against Lactobacillus spp. when KS and/or ta...

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Autores principales: Vásconez, M.B., Flores, S.K., Campos, C.A., Alvarado, J., Gerschenson, L.N.
Formato: JOUR
Materias:
Chitosan
Edible films and coatings
Starch
Coatings
Microorganisms
Physical properties
Potassium sorbate
Antagonist effects
Anti-microbial activity
Antibacterial action
Chitosan solution
Edible films
Lactobacillus spp
Refrigerated storages
Water vapor permeability
Lactobacillus
Manihot esculenta
Zygosaccharomyces
Zygosaccharomyces bailii
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09639969_v42_n7_p762_Vasconez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_09639969_v42_n7_p762_Vasconez
record_format dspace
spelling todo:paper_09639969_v42_n7_p762_Vasconez2023-10-03T15:54:41Z Antimicrobial activity and physical properties of chitosan-tapioca starch based edible films and coatings Vásconez, M.B. Flores, S.K. Campos, C.A. Alvarado, J. Gerschenson, L.N. Chitosan Edible films and coatings Starch Coatings Microorganisms Physical properties Potassium sorbate Starch Antagonist effects Anti-microbial activity Antibacterial action Chitosan solution Edible films Lactobacillus spp Refrigerated storages Water vapor permeability Chitosan Lactobacillus Manihot esculenta Zygosaccharomyces Zygosaccharomyces bailii Antimicrobial activity of edible coating solutions based on chitosan and blends of chitosan-tapioca starch with or without potassium sorbate (KS) addition was studied. The agar well diffusion assay showed an antagonist effect on the efficiency of chitosan against Lactobacillus spp. when KS and/or tapioca starch were present. A salmon slice coating assay showed that the chitosan solution was the best coating since aerobic mesophilic and psychrophilic cell counts were reduced, pH and weight loss remained acceptable throughout refrigerated storage, extending global quality to 6-days. Chitosan-tapioca starch based films reduced Zygosaccharomyces bailii external spoilage in a semisolid product but were not effective against Lactobacillus spp. The results suggest that antibacterial action depended on the application technique, due to the fact that chitosan is more available in a coating solution than in a film matrix. Interactions between chitosan-starch and/or KS could affect film physical properties and the antimicrobial activity of chitosan. The addition of chitosan reduced water vapor permeability and solubility of starch films. © 2009 Elsevier Ltd. All rights reserved. Fil:Flores, S.K. 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_v42_n7_p762_Vasconez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Chitosan
Edible films and coatings
Starch
Coatings
Microorganisms
Physical properties
Potassium sorbate
Starch
Antagonist effects
Anti-microbial activity
Antibacterial action
Chitosan solution
Edible films
Lactobacillus spp
Refrigerated storages
Water vapor permeability
Chitosan
Lactobacillus
Manihot esculenta
Zygosaccharomyces
Zygosaccharomyces bailii
spellingShingle Chitosan
Edible films and coatings
Starch
Coatings
Microorganisms
Physical properties
Potassium sorbate
Starch
Antagonist effects
Anti-microbial activity
Antibacterial action
Chitosan solution
Edible films
Lactobacillus spp
Refrigerated storages
Water vapor permeability
Chitosan
Lactobacillus
Manihot esculenta
Zygosaccharomyces
Zygosaccharomyces bailii
Vásconez, M.B.
Flores, S.K.
Campos, C.A.
Alvarado, J.
Gerschenson, L.N.
Antimicrobial activity and physical properties of chitosan-tapioca starch based edible films and coatings
topic_facet Chitosan
Edible films and coatings
Starch
Coatings
Microorganisms
Physical properties
Potassium sorbate
Starch
Antagonist effects
Anti-microbial activity
Antibacterial action
Chitosan solution
Edible films
Lactobacillus spp
Refrigerated storages
Water vapor permeability
Chitosan
Lactobacillus
Manihot esculenta
Zygosaccharomyces
Zygosaccharomyces bailii
description Antimicrobial activity of edible coating solutions based on chitosan and blends of chitosan-tapioca starch with or without potassium sorbate (KS) addition was studied. The agar well diffusion assay showed an antagonist effect on the efficiency of chitosan against Lactobacillus spp. when KS and/or tapioca starch were present. A salmon slice coating assay showed that the chitosan solution was the best coating since aerobic mesophilic and psychrophilic cell counts were reduced, pH and weight loss remained acceptable throughout refrigerated storage, extending global quality to 6-days. Chitosan-tapioca starch based films reduced Zygosaccharomyces bailii external spoilage in a semisolid product but were not effective against Lactobacillus spp. The results suggest that antibacterial action depended on the application technique, due to the fact that chitosan is more available in a coating solution than in a film matrix. Interactions between chitosan-starch and/or KS could affect film physical properties and the antimicrobial activity of chitosan. The addition of chitosan reduced water vapor permeability and solubility of starch films. © 2009 Elsevier Ltd. All rights reserved.
format JOUR
author Vásconez, M.B.
Flores, S.K.
Campos, C.A.
Alvarado, J.
Gerschenson, L.N.
author_facet Vásconez, M.B.
Flores, S.K.
Campos, C.A.
Alvarado, J.
Gerschenson, L.N.
author_sort Vásconez, M.B.
title Antimicrobial activity and physical properties of chitosan-tapioca starch based edible films and coatings
title_short Antimicrobial activity and physical properties of chitosan-tapioca starch based edible films and coatings
title_full Antimicrobial activity and physical properties of chitosan-tapioca starch based edible films and coatings
title_fullStr Antimicrobial activity and physical properties of chitosan-tapioca starch based edible films and coatings
title_full_unstemmed Antimicrobial activity and physical properties of chitosan-tapioca starch based edible films and coatings
title_sort antimicrobial activity and physical properties of chitosan-tapioca starch based edible films and coatings
url http://hdl.handle.net/20.500.12110/paper_09639969_v42_n7_p762_Vasconez
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AT camposca antimicrobialactivityandphysicalpropertiesofchitosantapiocastarchbasedediblefilmsandcoatings
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AT gerschensonln antimicrobialactivityandphysicalpropertiesofchitosantapiocastarchbasedediblefilmsandcoatings
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