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- Title
Development of a Halochromic, Antimicrobial, and Antioxidant Starch-Based Film Containing Phenolic Extract from Jaboticaba Peel.
- Authors
Luz, Rafaela F.; Ferreira, Richard D. R.; Silva, Cassio N. S.; Miranda, Bruna M.; Piccoli, Roberta H.; Silva, Monique S.; Paula, Ladyslene C.; Leles, Maria Inês G.; Fernandes, Kátia F.; Cruz, Maurício V.; Batista, Karla A.
- Abstract
In this study, the antioxidant, antimicrobial, mechanical, optical, and barrier attributes of Solanum lycocarpum starch bio-based edible films incorporated with a phenolic extract from jaboticaba peel were investigated. Aiming to determine the effect of the polymers and the phenolic extract on the properties of the films, a three-factor simplex-lattice design was employed, and the formulation optimization was based on the produced films' antioxidant potential. The optimized formulation of the starch-PEJP film showed a reddish-pink color with no cracks or bubbles and 91% antioxidant activity against DPPH radical. The optimized starch-PEJP film showed good transparency properties and a potent UV-blocking action, presenting color variation as a function of the pH values. The optimized film was also considerably resistant and highly flexible, showing a water vapor permeability of 3.28 × 10−6 g m−1 h−1 Pa−1. The microbial permeation test and antimicrobial evaluation demonstrated that the optimized starch-PEJP film avoided microbial contamination and was potent in reducing the growth of Escherichia coli, Staphylococcus aureus, and Salmonella spp. In summary, the active starch-PEJP film showed great potential as an environmentally friendly and halochromic material, presenting antioxidant and antimicrobial properties and high UV-protecting activity.
- Subjects
EDIBLE coatings; MICROBIAL contamination; WATER vapor; STAPHYLOCOCCUS aureus; EXTRACTS; ESCHERICHIA coli; SALMONELLA
- Publication
Foods, 2023, Vol 12, Issue 3, p653
- ISSN
2304-8158
- Publication type
Article
- DOI
10.3390/foods12030653