Gelatin based films capable of modifying its color against environmental pH changes

The aim of this work was to develop biodegradable protein-based films capable of sense pH changes. These protein films were prepared by casting from aqueous solutions of bovine gelatin, glycerol and three acid-base indicators: methyl orange (MO), neutral red (NR) and bromocresol green (BCG), at pH 2...

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Autores principales: Musso, Yanina Soledad, Salgado, Pablo Rodrigo, Mauri, Adriana Noemí
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2016
Materias:
Química
Food spoilage sensor
Gelatin
pH indicators
Protein film
Smart packaging
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/98795
https://ri.conicet.gov.ar/11336/57214
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-98795
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Food spoilage sensor
Gelatin
pH indicators
Protein film
Smart packaging
spellingShingle Química
Food spoilage sensor
Gelatin
pH indicators
Protein film
Smart packaging
Musso, Yanina Soledad
Salgado, Pablo Rodrigo
Mauri, Adriana Noemí
Gelatin based films capable of modifying its color against environmental pH changes
topic_facet Química
Food spoilage sensor
Gelatin
pH indicators
Protein film
Smart packaging
description The aim of this work was to develop biodegradable protein-based films capable of sense pH changes. These protein films were prepared by casting from aqueous solutions of bovine gelatin, glycerol and three acid-base indicators: methyl orange (MO), neutral red (NR) and bromocresol green (BCG), at pH 2, 6 and 11. All resulting protein films were homogeneous, thin and had different colors depending on pH and the indicator used. The response of these materials was evaluated simulating their contact with liquid and semisolid media, and with a container headspace at acid and alkaline pH. In all tests, developed protein films could modify their color after being in contact with media of different pH. The physicochemical properties of films were also affected differently by the presence of each acid-base indicator. While the addition of BCG did not significantly modify the properties of control gelatin films, except its color; the incorporation of MO and NR into film-forming solutions significantly improved mechanical properties and decreased the water solubility and moisture content of the resulting protein films without affecting their water vapor permeability.
format Articulo
Preprint
author Musso, Yanina Soledad
Salgado, Pablo Rodrigo
Mauri, Adriana Noemí
author_facet Musso, Yanina Soledad
Salgado, Pablo Rodrigo
Mauri, Adriana Noemí
author_sort Musso, Yanina Soledad
title Gelatin based films capable of modifying its color against environmental pH changes
title_short Gelatin based films capable of modifying its color against environmental pH changes
title_full Gelatin based films capable of modifying its color against environmental pH changes
title_fullStr Gelatin based films capable of modifying its color against environmental pH changes
title_full_unstemmed Gelatin based films capable of modifying its color against environmental pH changes
title_sort gelatin based films capable of modifying its color against environmental ph changes
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/98795
https://ri.conicet.gov.ar/11336/57214
work_keys_str_mv AT mussoyaninasoledad gelatinbasedfilmscapableofmodifyingitscoloragainstenvironmentalphchanges
AT salgadopablorodrigo gelatinbasedfilmscapableofmodifyingitscoloragainstenvironmentalphchanges
AT mauriadriananoemi gelatinbasedfilmscapableofmodifyingitscoloragainstenvironmentalphchanges
bdutipo_str Repositorios
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