Characterization of Food Packaging Films with Blackcurrant Fruit Waste as a Source of Antioxidant and Color Sensing Intelligent Material

Molecules

Nasreddine Benbettaieb¹  Eliot Chaudy¹  Frédéric Debeaufort¹  Mia Kurek²  Mario Ščetar²  Kata Galić²  Maja Repajić²  Damir Klepac³  Srećko Valić³ 

[1] Department of BioEngineering, Institute of Technology, University of Burgundy, 7 Blvd Docteur Petitjean, BP 17867, CEDEX, F-21078 Dijon, France;Faculty of Food Technology and Biotechnology, Pierottijeva 6, 10000 Zagreb, Croatia;Faculty of Medicine, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia;

关键词: blackcurrant waste;    chitosan;    pectin;    antioxidant;    intelligent sensing;    color changing;   

DOI  :  10.3390/molecules26092569

来源: DOAJ

【 摘 要 】

Chitosan and pectin films were enriched with blackcurrant pomace powder (10 and 20% (w/w)), as bio-based material, to minimize food production losses and to increase the functional properties of produced films aimed at food coatings and wrappers. Water vapor permeability of active films increased up to 25%, moisture content for 27% in pectin-based ones, but water solubility was not significantly modified. Mechanical properties (tensile strength, elongation at break and Young’s modulus) were mainly decreased due to the residual insoluble particles present in blackcurrant waste. FTIR analysis showed no significant changes between the film samples. The degradation temperatures, determined by DSC, were reduced by 18 °C for chitosan-based samples and of 32 °C lower for the pectin-based samples with blackcurrant powder, indicating a disturbance in polymer stability. The antioxidant activity of active films was increased up to 30-fold. Lightness and redness of dry films significantly changed depending on the polymer type. Significant color changes, especially in chitosan film formulations, were observed after exposure to different pH buffers. This effect is further explored in formulations that were used as color change indicators for intelligent biopackaging.

【 授权许可】

Unknown