Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/14793
Título: | Antimicrobial and antioxidant linen via laccase-assisted grafting |
Autor(es): | Silva, Carla Manuela Pereira Marinho da Matamá, Maria Teresa Padrão, Jorge Kim, Suyeon Prasetyo, E. N. Kudanga, T. Nyanhongo, Gibson S. Guebitz, G. M. Casal, Margarida Paulo, Artur Cavaco |
Palavras-chave: | Chitosan Catechin Laccase Polymerization Linen |
Data: | Jul-2011 |
Editora: | Elsevier 1 |
Revista: | Reactive and Functional Polymers |
Resumo(s): | A laccase from Ascomycetemyceliophthora thermophila was used to assist the binding of chitosan and catechin onto a previous enzymatically oxidized linen surface. The process consists of the pre-treatment of the linen with laccase followed by the application of chitosan in a first step and catechin plus laccase in a second step. The results presented here support the conclusion that laccase is able to oxidize phenols naturally existing in flax fibres, and that the o-quinones formed promote the attachment of chitosan or/and catechin. The pre-treatment of linen with laccase is therefore the key factor for the success of catechin and chitosan grafting. A multifunctional linen product with both antioxidant and antibacterial properties was obtained with an acceptable level of durability in terms of end user requirements. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/14793 |
DOI: | 10.1016/j.reactfunctpolym.2011.03.011 |
ISSN: | 1381-5148 |
Versão da editora: | http://www.sciencedirect.com/science/article/pii/S1381514811000800 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | DET/2C2T - Artigos em revistas internacionais com arbitragem científica |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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2011 Antimicrobial and antioxidant linen via laccase-assisted grafting.pdf | Antimicrobial and antioxidant linen via laccase-assisted grafting | 838,36 kB | Adobe PDF | Ver/Abrir |