Utilize este identificador para referenciar este registo:
http://hdl.handle.net/10773/20288
Título: | Antimicrobial pullulan derivative prepared by grafting with 3-aminopropyltrimethoxysilane: Characterization and ability to form transparent films |
Autor: | Fernandes, Susana C. M. Sadocco, Patrizia Causio, Jessica Silvestre, Armando J. D. Mondragon, Inaki Freire, Carmen S. R. |
Palavras-chave: | ANTIBACTERIAL ACTIVITY CELLULOSIC FIBERS SILVER NANOPARTICLES EDIBLE FILMS CHITOSAN BACTERIAL POLYMERS COATINGS |
Data: | 2014 |
Editora: | ELSEVIER SCI LTD |
Resumo: | In the present work, we propose a simple and straightforward procedure to prepare antibacterial transparent pullulan films by functionalization of pullulan powder with 3-aminopropyltrimethoxysilane. The introduction of active aminopropyl groups into the pullulan polymeric backbone imparts antimicrobial activity against Gram-positive (Staphylococcus aureus) and Gram-negative bacteria (Escherichia coli). In addition, the antimicrobial pullulan maintains its filmogenic ability and the films showed reasonable mechanical properties (Young modulus of 1.8 GPa and tensile strength of 21 MPa) and improved thermal stability (increment of 10 degrees C on the maximum degradation temperature), opening the possibility for application in functional food packaging films and coatings. (C) 2013 Elsevier Ltd. All rights reserved. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/20288 |
DOI: | 10.1016/j.foodhyd.2013.05.014 |
ISSN: | 0268-005X |
Versão do Editor: | 10.1016/j.foodhyd.2013.05.014 |
Aparece nas coleções: | CICECO - Artigos |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
Antimicrobial pullulan derivative prepared by grafting with 3-aminopropyltrimethoxysilane Characterization and ability toformtransparent films_10.1016j.foodhyd.2013.05.014.pdf | 708.86 kB | Adobe PDF |
Todos os registos no repositório estão protegidos por leis de copyright, com todos os direitos reservados.