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.
TY - 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 . .
