Chitosan from Syncephalastrum racemosum used as a film support for lipase immobilization.
Bioresour Technol
; 89(1): 35-9, 2003 Aug.
Article
em En
| MEDLINE
| ID: mdl-12676498
ABSTRACT
Chitosan from a native Mucoralean strain, Syncephalastrum racemosum, isolated from herbivorous dung (Northeast-Brazil), was used as a film support for lipase immobilization. S. racemosum showed highest chitosan yield (152 mg g dry mycelia weight(-1); 15.2% of dry mycelia weight) among the nine strains screened, which presented 89% D-glucosamine. A chitosan film was used for lipase (EC 3.1.1.3) immobilization using glutaraldehyde as a bifunctional agent. The immobilized lipase retained 47% (12.6 micromol s(-1) m(-2)) of its initial catalytic activity after four cycles of reaction. This result is comparable (same order of magnitude) to that of the enzyme immobilized on film made from commercially available crustacean chitosan.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Quitina
/
Enzimas Imobilizadas
/
Fungos
/
Lipase
/
Membranas Artificiais
Limite:
Animals
Idioma:
En
Revista:
Bioresour Technol
Assunto da revista:
ENGENHARIA BIOMEDICA
Ano de publicação:
2003
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
ENGLAND
/
ESCOCIA
/
GB
/
GREAT BRITAIN
/
INGLATERRA
/
REINO UNIDO
/
SCOTLAND
/
UK
/
UNITED KINGDOM