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Designing antimicrobial polypropylene films with grape pomace extract for food packaging

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Autor(es):
da Silva, Daniel J. ; de Oliveira, Matheus M. ; Wang, Shu Hui ; Carastan, Danilo J. ; Rosa, Derval S.
Número total de Autores: 5
Tipo de documento: Artigo Científico
Fonte: FOOD PACKAGING AND SHELF LIFE; v. 34, p. 10-pg., 2022-08-20.
Resumo

Grape pomace (mixture of skins and seeds) is a residual by-product of the winemaking process, rich in poly -phenolic compounds that have antioxidant and antimicrobial properties and can be recycled to manufacture fruit extracts to be used in new technological products. The use of non-toxic substances is exciting for developing packagings that are in direct contact with food, as components present in the polymer might migrate to the food. Moreover, the gradual release of these non-toxic bioactive components confers long-term antimicrobial activity to these PP films enriched with grape pomace extract. In addition, the use of raw materials from natural and renewable origins to manufacture antimicrobial packaging contributes to a more sustainable and eco-friendly industrial production and to mitigate environmental impacts. In this research, bactericidal isotactic poly-propylene (PP) was developed using grape pomace extract as an antimicrobial additive and presents low water vapor permeability and antimicrobial activity against Gram-negative (Escherichia coli) and Gram-positive (Ba-cillus subtilis) bacteria, showing potential to function as an active and safer polymeric food packaging. (AU)

Processo FAPESP: 19/16301-6 - Aerogéis de amido contendo nanocelulose modificada para remoção de metais pesados em águas residuais oriundas do setor industrial
Beneficiário:Paulo Henrique Camani
Modalidade de apoio: Bolsas no Brasil - Doutorado
Processo FAPESP: 20/13703-3 - Materiais porosos ecológicos para a recuperação e reavaliação de metais recuperados de água contaminada
Beneficiário:Derval dos Santos Rosa
Modalidade de apoio: Auxílio à Pesquisa - Temático