Corn starch-based coating enriched with natamycin as an active compound to control mold contamination on semi-hard cheese during ripening

The effectiveness of natamycin supported in corn starch-based films to control environmental molds (mainly <i>Penicillium spp</i>) activity that could colonize the surface of semi-hard cheese during ripening, was evaluated. The starch amount was maximized, and this was achieved by adding...

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Detalles Bibliográficos
Autores principales: González Forte, Lucía del Sol, Amalvy, Javier Ignacio, Bértola, Nora Cristina
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
Materias:
Ciencias Exactas
Food science
Food safety
Food microbiology
Microbiology
Natamycin
PVA
Polyurethane
Starch-based film and coating
Ripening
Microbiological contamination
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/121770
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-121770
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Food science
Food safety
Food microbiology
Microbiology
Natamycin
PVA
Polyurethane
Starch-based film and coating
Ripening
Microbiological contamination
spellingShingle Ciencias Exactas
Food science
Food safety
Food microbiology
Microbiology
Natamycin
PVA
Polyurethane
Starch-based film and coating
Ripening
Microbiological contamination
González Forte, Lucía del Sol
Amalvy, Javier Ignacio
Bértola, Nora Cristina
Corn starch-based coating enriched with natamycin as an active compound to control mold contamination on semi-hard cheese during ripening
topic_facet Ciencias Exactas
Food science
Food safety
Food microbiology
Microbiology
Natamycin
PVA
Polyurethane
Starch-based film and coating
Ripening
Microbiological contamination
description The effectiveness of natamycin supported in corn starch-based films to control environmental molds (mainly <i>Penicillium spp</i>) activity that could colonize the surface of semi-hard cheese during ripening, was evaluated. The starch amount was maximized, and this was achieved by adding polyvinyl alcohol (PVA) and also polyurethane (PU) to the formulation. The PU acted as plasticizer and also provided functional groups that interacted with the natamycin and affected its diffusion. When 5 % PU was added, the natamycin migration of the coating doped with 1% natamycin was reduced by half. The natamycin distribution on both sides of the film was also evaluated, concluding that, in line with the reduced migration, when polyurethane is included, the formulation presents high hydrophobicity and natamycin is left with a preferential distribution towards the air face (exterior). For microbiological tests, microorganisms were isolated from cheese factories. Natamycin solutions showed inhibitory effect against environmental molds including <i>Penicillium spp</i>. Accordingly, films loaded with 0.1 % natamycin showed a significant inhibitory effect against <i>Penicillium spp</i>. The polymer combination in this work was optimized to obtain an active coating with good physicochemical properties and enriched with natamycin that has proven to be available for acting against molds and preferentially on the surface exposed to potential mold attack during ripening.
format Articulo
Articulo
author González Forte, Lucía del Sol
Amalvy, Javier Ignacio
Bértola, Nora Cristina
author_facet González Forte, Lucía del Sol
Amalvy, Javier Ignacio
Bértola, Nora Cristina
author_sort González Forte, Lucía del Sol
title Corn starch-based coating enriched with natamycin as an active compound to control mold contamination on semi-hard cheese during ripening
title_short Corn starch-based coating enriched with natamycin as an active compound to control mold contamination on semi-hard cheese during ripening
title_full Corn starch-based coating enriched with natamycin as an active compound to control mold contamination on semi-hard cheese during ripening
title_fullStr Corn starch-based coating enriched with natamycin as an active compound to control mold contamination on semi-hard cheese during ripening
title_full_unstemmed Corn starch-based coating enriched with natamycin as an active compound to control mold contamination on semi-hard cheese during ripening
title_sort corn starch-based coating enriched with natamycin as an active compound to control mold contamination on semi-hard cheese during ripening
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/121770
work_keys_str_mv AT gonzalezforteluciadelsol cornstarchbasedcoatingenrichedwithnatamycinasanactivecompoundtocontrolmoldcontaminationonsemihardcheeseduringripening
AT amalvyjavierignacio cornstarchbasedcoatingenrichedwithnatamycinasanactivecompoundtocontrolmoldcontaminationonsemihardcheeseduringripening
AT bertolanoracristina cornstarchbasedcoatingenrichedwithnatamycinasanactivecompoundtocontrolmoldcontaminationonsemihardcheeseduringripening
bdutipo_str Repositorios
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