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:	Flores, Silvia Karina, Campos, Carmen Adriana, Gerschenson, Lía Noemí
Publicado:	2009
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:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09639969_v42_n7_p762_Vasconez 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	paper:paper_09639969_v42_n7_p762_Vasconez
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spelling	paper:paper_09639969_v42_n7_p762_Vasconez2023-06-08T15:58:25Z Antimicrobial activity and physical properties of chitosan-tapioca starch based edible films and coatings Flores, Silvia Karina Campos, Carmen Adriana Gerschenson, Lía Noemí 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. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09639969_v42_n7_p762_Vasconez 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 Flores, Silvia Karina Campos, Carmen Adriana Gerschenson, Lía Noemí 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.
author	Flores, Silvia Karina Campos, Carmen Adriana Gerschenson, Lía Noemí
author_facet	Flores, Silvia Karina Campos, Carmen Adriana Gerschenson, Lía Noemí
author_sort	Flores, Silvia Karina
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
publishDate	2009
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09639969_v42_n7_p762_Vasconez http://hdl.handle.net/20.500.12110/paper_09639969_v42_n7_p762_Vasconez
work_keys_str_mv	AT floressilviakarina antimicrobialactivityandphysicalpropertiesofchitosantapiocastarchbasedediblefilmsandcoatings AT camposcarmenadriana antimicrobialactivityandphysicalpropertiesofchitosantapiocastarchbasedediblefilmsandcoatings AT gerschensonlianoemi antimicrobialactivityandphysicalpropertiesofchitosantapiocastarchbasedediblefilmsandcoatings
_version_	1768546594258419712

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

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