Antioxidant edible films based on chitosan and starch containing polyphenols from thyme extracts
Authorized Users Only
2017
Authors
Talon, EmmaTrifković, Kata T.

Nedović, Viktor

Bugarski, Branko

Vargas, Maria

Chiralt, Amparo

Gonzalez-Martinez, Chelo

Article (Published version)

Metadata
Show full item recordAbstract
The aim of this study was to analyse the antioxidant activity of different polymeric matrices based on chitosan and starch, incorporating a thyme extract (TE) rich in polyphenols. TE provided the films with remarkable antioxidant activity. When mixed with chitosan, the polyphenols interacted with the polymer chains, acting as crosslinkers and enhancing the tensile behaviour of films. The opposite effect was observed when incorporated into the starch matrix. All the films became darker, more reddish and less transparent when TE was incorporated. These colour changes were more marked in starch matrices, which suggests that TE compounds were poorly encapsulated. The use of chitosan-based matrices carrying TE polyphenols is recommended as a means of obtaining antioxidant films, on the basis of their tensile response and greater antioxidant activity, which could be associated with the development of polyphenol-chitosan interactions, contributing to a better protection of the functionality o...f polyphenols during film formation and conditioning.
Keywords:
Tensile properties / Colour / Gloss / DPPH method / MicrostructureSource:
Carbohydrate Polymers, 2017, 157, 1153-1161Publisher:
- Elsevier Sci Ltd, Oxford
Funding / projects:
- Spanish Ministerio de Education y CienciaSpanish Government [AGL2010-20694]
- Universitat Politecnica Valencia (UPV) [99/2011]
DOI: 10.1016/j.carbpol.2016.10.080
ISSN: 0144-8617
PubMed: 27987818
WoS: 000391896800128
Scopus: 2-s2.0-85005983408
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Talon, Emma AU - Trifković, Kata T. AU - Nedović, Viktor AU - Bugarski, Branko AU - Vargas, Maria AU - Chiralt, Amparo AU - Gonzalez-Martinez, Chelo PY - 2017 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3672 AB - The aim of this study was to analyse the antioxidant activity of different polymeric matrices based on chitosan and starch, incorporating a thyme extract (TE) rich in polyphenols. TE provided the films with remarkable antioxidant activity. When mixed with chitosan, the polyphenols interacted with the polymer chains, acting as crosslinkers and enhancing the tensile behaviour of films. The opposite effect was observed when incorporated into the starch matrix. All the films became darker, more reddish and less transparent when TE was incorporated. These colour changes were more marked in starch matrices, which suggests that TE compounds were poorly encapsulated. The use of chitosan-based matrices carrying TE polyphenols is recommended as a means of obtaining antioxidant films, on the basis of their tensile response and greater antioxidant activity, which could be associated with the development of polyphenol-chitosan interactions, contributing to a better protection of the functionality of polyphenols during film formation and conditioning. PB - Elsevier Sci Ltd, Oxford T2 - Carbohydrate Polymers T1 - Antioxidant edible films based on chitosan and starch containing polyphenols from thyme extracts EP - 1161 SP - 1153 VL - 157 DO - 10.1016/j.carbpol.2016.10.080 ER -
@article{ author = "Talon, Emma and Trifković, Kata T. and Nedović, Viktor and Bugarski, Branko and Vargas, Maria and Chiralt, Amparo and Gonzalez-Martinez, Chelo", year = "2017", abstract = "The aim of this study was to analyse the antioxidant activity of different polymeric matrices based on chitosan and starch, incorporating a thyme extract (TE) rich in polyphenols. TE provided the films with remarkable antioxidant activity. When mixed with chitosan, the polyphenols interacted with the polymer chains, acting as crosslinkers and enhancing the tensile behaviour of films. The opposite effect was observed when incorporated into the starch matrix. All the films became darker, more reddish and less transparent when TE was incorporated. These colour changes were more marked in starch matrices, which suggests that TE compounds were poorly encapsulated. The use of chitosan-based matrices carrying TE polyphenols is recommended as a means of obtaining antioxidant films, on the basis of their tensile response and greater antioxidant activity, which could be associated with the development of polyphenol-chitosan interactions, contributing to a better protection of the functionality of polyphenols during film formation and conditioning.", publisher = "Elsevier Sci Ltd, Oxford", journal = "Carbohydrate Polymers", title = "Antioxidant edible films based on chitosan and starch containing polyphenols from thyme extracts", pages = "1161-1153", volume = "157", doi = "10.1016/j.carbpol.2016.10.080" }
Talon, E., Trifković, K. T., Nedović, V., Bugarski, B., Vargas, M., Chiralt, A.,& Gonzalez-Martinez, C.. (2017). Antioxidant edible films based on chitosan and starch containing polyphenols from thyme extracts. in Carbohydrate Polymers Elsevier Sci Ltd, Oxford., 157, 1153-1161. https://doi.org/10.1016/j.carbpol.2016.10.080
Talon E, Trifković KT, Nedović V, Bugarski B, Vargas M, Chiralt A, Gonzalez-Martinez C. Antioxidant edible films based on chitosan and starch containing polyphenols from thyme extracts. in Carbohydrate Polymers. 2017;157:1153-1161. doi:10.1016/j.carbpol.2016.10.080 .
Talon, Emma, Trifković, Kata T., Nedović, Viktor, Bugarski, Branko, Vargas, Maria, Chiralt, Amparo, Gonzalez-Martinez, Chelo, "Antioxidant edible films based on chitosan and starch containing polyphenols from thyme extracts" in Carbohydrate Polymers, 157 (2017):1153-1161, https://doi.org/10.1016/j.carbpol.2016.10.080 . .