Effect of different combinations of glycerol and/or trehalose on physical and structural properties of whey protein concentrate-based edible films
The aim of the present study was to develop and characterize edible films produced from whey protein concentrate (WPC) and plasticized with different contents of glycerol (Gly) and/or trehalose (Tre) in order to evaluate new edible film formulations for their potential use in food packaging applicat...
| Autores principales: | , , , |
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| Formato: | article artículo acceptedVersion |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2019
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/2133/13885 http://hdl.handle.net/2133/13885 |
| Aporte de: |
| id |
I15-R121-2133-13885 |
|---|---|
| record_format |
dspace |
| institution |
Universidad Nacional de Rosario |
| institution_str |
I-15 |
| repository_str |
R-121 |
| collection |
Repositorio Hipermedial de la Universidad Nacional de Rosario (UNR) |
| language |
Inglés |
| orig_language_str_mv |
eng |
| topic |
Whey protein edible films Trehalose Physical properties Long-term storage Freezing |
| spellingShingle |
Whey protein edible films Trehalose Physical properties Long-term storage Freezing Pérez, Leonardo Martín Piccirilli, Gisela Noemí Delorenzi, Néstor Jorge Verdini, Roxana Andrea Effect of different combinations of glycerol and/or trehalose on physical and structural properties of whey protein concentrate-based edible films |
| topic_facet |
Whey protein edible films Trehalose Physical properties Long-term storage Freezing |
| description |
The aim of the present study was to develop and characterize edible films produced from whey protein concentrate (WPC) and plasticized with different contents of glycerol (Gly) and/or trehalose (Tre) in order to evaluate new edible film formulations for their potential use in food packaging applications. Additionally, potential changes in the film mechanical properties during storage at ambient and freezing conditions were considered. Moisture content, solubility, thickness, transparency, microstructure, colour parameters, and mechanical properties were assessed. The films incorporated with Tre were more insoluble in water than WPC/Gly films, being more suitable for food applications. WPC/Gly and WPC/Tre films were clear enough to be used as see-through packaging. However, when Tre was included into WPC/Gly film formulations, film opacity increased. Scanning electron microscope (SEM) images suggested that this phenomenon may be related to the growth of Tre crystals in the film matrix. Moreover, when Tre concentration increased in the WPC/Gly matrix, film surface was more heterogeneous. Interestingly, the presence of Tre in WPC-based films was effective in preventing Maillard reaction after heating. WPC/Tre films were the most rigid but the least stable for storage, resulting more susceptible to rupture and cracking. Only WPC/Gly and WPC/Gly-Tre 8% films were rather flexible, manageable, and stable up to 90 days of storage under ambient and freezing conditions. These findings can be used to better design applications of edible films containing plasticizers that may crystallize over time in order to optimize film formulation in a rational manner towards their eventual application as food packaging. |
| format |
article artículo acceptedVersion |
| author |
Pérez, Leonardo Martín Piccirilli, Gisela Noemí Delorenzi, Néstor Jorge Verdini, Roxana Andrea |
| author_facet |
Pérez, Leonardo Martín Piccirilli, Gisela Noemí Delorenzi, Néstor Jorge Verdini, Roxana Andrea |
| author_sort |
Pérez, Leonardo Martín |
| title |
Effect of different combinations of glycerol and/or trehalose on physical and structural properties of whey protein concentrate-based edible films |
| title_short |
Effect of different combinations of glycerol and/or trehalose on physical and structural properties of whey protein concentrate-based edible films |
| title_full |
Effect of different combinations of glycerol and/or trehalose on physical and structural properties of whey protein concentrate-based edible films |
| title_fullStr |
Effect of different combinations of glycerol and/or trehalose on physical and structural properties of whey protein concentrate-based edible films |
| title_full_unstemmed |
Effect of different combinations of glycerol and/or trehalose on physical and structural properties of whey protein concentrate-based edible films |
| title_sort |
effect of different combinations of glycerol and/or trehalose on physical and structural properties of whey protein concentrate-based edible films |
| publisher |
Elsevier |
| publishDate |
2019 |
| url |
http://hdl.handle.net/2133/13885 http://hdl.handle.net/2133/13885 |
| work_keys_str_mv |
AT perezleonardomartin effectofdifferentcombinationsofglycerolandortrehaloseonphysicalandstructuralpropertiesofwheyproteinconcentratebasedediblefilms AT piccirilligiselanoemi effectofdifferentcombinationsofglycerolandortrehaloseonphysicalandstructuralpropertiesofwheyproteinconcentratebasedediblefilms AT delorenzinestorjorge effectofdifferentcombinationsofglycerolandortrehaloseonphysicalandstructuralpropertiesofwheyproteinconcentratebasedediblefilms AT verdiniroxanaandrea effectofdifferentcombinationsofglycerolandortrehaloseonphysicalandstructuralpropertiesofwheyproteinconcentratebasedediblefilms |
| bdutipo_str |
Repositorios |
| _version_ |
1764820407950508033 |