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https://hdl.handle.net/1822/46659
Título: | Ultrasound-assisted swelling of bacterial cellulose |
Autor(es): | Song, J. Su, Jing Loureiro, Ana Sá, M. Cavaco-Paulo, Artur Kim, Hye Rim Silva, Carla |
Palavras-chave: | Bacterial cellulose PEG-FITC Polymerization Swelling Ultrasound |
Data: | Out-2017 |
Editora: | Wiley-Blackwell |
Revista: | Engineering in Life Sciences |
Citação: | Song, J.; Su, Jing; Loureiro, Ana; Sá, M.; Cavaco-Paulo, Artur; Kim, Hye Rim; Silva, Carla, Ultrasound-assisted swelling of bacterial cellulose. Engineering in Life Sciences, 17(10), 1108-1117, 2017 |
Resumo(s): | Bacterial cellulose (BC) was obtained by static cultivation using commercial BC gel from scoby. BC membranes (oven dried and freeze-dried) were swelled with 8% NaOH, in absence and in presence of ultrasound (US), for 30, 60 and 90 min. The influence of swelling conditions on both physico-chemical properties and molecules entrapment was evaluated. Considering the highest levels of entrapment, an optimum swelling procedure was established: 8% NaOH for 30 min. at room temperature in the presence of US. Native and PEGylated laccase from Myceliophthora Thermophila was immobilized on BC membranes and a different catalytic behaviour was observed after immobilization. Native laccase presented activity values similar to published reports (5-7 U/gBC) after immobilization whereas PEGylated enzymes showed much lower activity (1-2 U/gBC). BC swelled membranes are presented herein as a potential support for the preparation of immobilized enzymes for industrial applications, like phenolics polymerization. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/46659 |
DOI: | 10.1002/elsc.201700085 |
ISSN: | 1618-0240 |
e-ISSN: | 1618-2863 |
Versão da editora: | http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1618-2863 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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document_46866_1.pdf | 1,42 MB | Adobe PDF | Ver/Abrir |