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- Title
Elaboration of active films with whey protein isolate and concentrate.
- Authors
Ribeiro-Santos, R.; Melo, N. R.; Gonçalves, S. M.; Motta, J. F. G.; Costa, B. S.
- Abstract
Whey protein-based films are biodegradable food packaging, can be edible, and have high nutritional value. Active compounds can be incorporated into the matrix of these films to extend the shelf life of the products. These additives may be essential oils (EOs) that are natural aromatic compounds, with antimicrobial and antioxidant properties. This study aimed to evaluate different conditions for the preparation of whey protein isolate and whey protein concentrate based films incorporated with essential oil. Protein-based films were prepared by the casting method with or without addition of cinnamon EO (1%, w/w). Different concentrations of protein (6.5, 10, 13 and 19%, w/w) and glycerol (3, 5 and 8%, w/w) were tested, as well as the dispersion material (glass, plastic and tetrafluoroethylene plates) of the filmogenic solution. The film forming solutions with high protein concentration gelled up on heating. The films containing 6.5% protein and 3% glycerol showed good results when Teflon® plate was used for drying. Edible films incorporated with active agents are suitable alternatives for food safety and nutrition, once they can ensure the safety of the packaged product.
- Subjects
FOOD safety; FOOD packaging; ESSENTIAL oils; EDIBLE coatings; CINNAMON
- Publication
International Food Research Journal, 2018, Vol 25, Issue 2, p820
- ISSN
1985-4668
- Publication type
Article