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- Title
Nanoparticles and Plant By-Products for Edible Coatings Production: A Case Study with Zinc, Titanium, and Silver.
- Authors
Tauferová, Alexandra; Javůrková, Zdeňka; Pospiech, Matej; Koudelková Mikulášková, Hana; Těšíková, Karolína; Dordevic, Dani; Dordevic, Simona; Tremlová, Bohuslava
- Abstract
For the development of functional edible packaging that will not lead to rejection by the consumer, it is needed to analyze the interactions between ingredients in the packaging matrix. The aim of this study was to develop edible chitosan-based coatings that have been enriched with red grape extracts, zinc, silver, and titanium nanoparticles. The organoleptic properties of the produced edible packaging were described by quantitative descriptive analysis and consumer acceptability was verified by hedonic analysis. By image analysis, color parameters in the CIELab system, opacity, Whiteness and Yellowness Index were described. The microstructure was described by scanning electron microscopy. The hedonic evaluation revealed that the addition of nanometals and their increasing concentration caused a deterioration in sample acceptability. The overall evaluation was higher than 5 in 50% of the samples containing nanometals. The addition of nanometals also caused statistically significant changes in L*, a*, and b* values. The sample transparency generally decreased with the increasing concentration of nanoparticle addition. Scanning electron microscopy showed, that the addition of nanometals does not disrupt the protective function of the packaging. From a sensory point of view, the addition of ZnO nanoparticles in concentrations of 0.05 and 0.2% appeared to be the most favorable of all nanometals.
- Subjects
EDIBLE coatings; EDIBLE plants; TITANIUM; SCANNING electron microscopy; SILVER; ZINC
- Publication
Polymers (20734360), 2022, Vol 14, Issue 14, pN.PAG
- ISSN
2073-4360
- Publication type
Article
- DOI
10.3390/polym14142837