Bioactive efficacy of low‐density polyethylene films with natural additives

ABSTRACT Active packaging can be defined as packaging that includes additives that help to extend the shelf life of food; among the advantages of its use is the possibility to reduce the amount of additives added to the food during processing. The aim of this study was to develop, characterize, and...

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Bibliographic Details
Published in:Journal of applied polymer science 2018-09, Vol.135 (34), p.n/a
Main Authors: Moura, Lídia Eloy, Souza, Carolina Oliveira, de Oliveira, Eleidiana Andréia Seixas, Lemos, Paulo Vitor França, Druzian, Janice Izabel
Format: Article
Language:English
Subjects:
Additives
Antioxidants
dyes/pigments
Extrusion
Food
Low density polyethylenes
Materials science
mechanical properties
Microorganisms
oil and gas
Packaging
Polyethylene films
Polymers
Protective coatings
Shelf life
Thermodynamic properties
thermogravimetric analysis (TGA)
Water vapor
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Summary:ABSTRACT Active packaging can be defined as packaging that includes additives that help to extend the shelf life of food; among the advantages of its use is the possibility to reduce the amount of additives added to the food during processing. The aim of this study was to develop, characterize, and apply active films of low‐density polyethylene, incorporating carotenoid and yerba mate extracts as active additives. Active films were obtained by extrusion and were characterized for water vapor permeability, thickness, color, and mechanical and thermal properties. The effectiveness of the films was evaluated using butter packed in the formulated films. There was a significant reduction in thickness, and mechanical, thermal, and water vapor barrier parameters of the films compared to the control. The concentration of additives directly influenced coloration and antioxidant and antimicrobial action of the films. The formulated films provided protection against oxidative action and inhibition of microbial growth. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46461.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.46461