Data/hora: 16/06/2024 02:43:43

Biblioteca(s): | Embrapa Florestas.
Data corrente: | 23/04/2018
Data da última atualização: | 08/05/2018
Autoria: | MISSIO, A. L.; MATTOS, B. D.; FERREIRA, D. de F.; MAGALHAES, W. L. E.; BERTUOL, D. A.; GATTO, D. A.; PETUTSCHNIGG, A.; TONDI, G.
Afiliação: | André L. Missio, Universidade Federal de Santa Maria; Bruno D. Mattos, Doutorando da UFPR; Daniele de F. Ferreira, Universidade Federal de Santa Maria; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; Daniel A. Bertuol, Universidade Federal de Santa Maria; Darci A. Gatto, Universidade Federal de Santa Maria; Alexander Petutschnigg, Salzburg University of Applied Sciences; Gianluca Tondi, Salzburg University of Applied Sciences.
Título: | Nanocellulose-tannin films: from trees to sustainable active packaging.
Ano de publicação: | 2018
Fonte/Imprenta: | Journal of Cleaner Production, v. 184, p. 143-151, May 2018.
DOI: | 10.1016/j.jclepro.2018.02.205
Idioma: | Inglês
Conteúdo: | Cellulose nanofibrils and condensed tannins were chosen to prepare a strong, sustainable packaging material. Cellulose nanofibrils provided the physical and mechanical requirements, while the tannin was incorporated due to its antioxidant properties. Herein, an easy, one-step method was designed to prepare a film containing 190 mg/g of active molecules. The incorporation of tannin into the cellulose matrix was carried out through the mechanical fibrillation of cellulose pulp and tannin mixtures. The tanninincorporated cellulose films presented high density and improved surface hydrophobicity, which resulted in a 6-fold enhancement in their air-barrier properties. A slow release of antioxidant components was verified upon soaking, as well as good resistance to several solvents. The mechanical features of the cellulose matrix were not significantly affected by the incorporation of such phenolic molecules. These properties are key factors to put forward the utilization of tannin-added films as a valid green, nontoxic packaging material for food and pharmaceutical products.
Palavras-Chave: | Molhabilidade; NFC.
Thesagro: | Acácia Mearnsii; Embalagem; Preservação de alimento.
Thesaurus Nal: | Polyphenols; Preservatives; Shelf life; Storage quality; Wettability.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
Registro original: | Embrapa Florestas (CNPF)
Exemplares: | CNPF - (56325-1) - UPC - AP - DD -  -  -  - DIS