Temperature effect on dextransucrase production by Leuconostoc mesenteroides FT 045 B isolated from Alcohol and Sugar Mill Plant

Temperature (23 to 31°C) and sucrose concentration (3 and 4%) effects on dextransucrase production by Leuconostoc mesenteroides NRRL B 512 (F) and Leuconostoc mesenteroides FT 045 B were studied. The conditions in all fermentations were: total reaction volume 2 L, 132 rev. min-1, 0.5 vvm and pH 6.0....

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Detalles Bibliográficos
Autores: Cortezi, Mariana [UNESP], Monti, Rubens [UNESP], Contiero, Jonas [UNESP]
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2005
País:Brasil
Institución:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/224551
Acceso en línea:http://hdl.handle.net/11449/224551
Access Level:acceso abierto
Palabra clave:Dextran
Dextransucrase
Enzyme activity
Leuconostoc mesenteroides FT045 B
Leuconostoc mesenteroides NRRL B512 (F)
Temperature
Descripción
Sumario:Temperature (23 to 31°C) and sucrose concentration (3 and 4%) effects on dextransucrase production by Leuconostoc mesenteroides NRRL B 512 (F) and Leuconostoc mesenteroides FT 045 B were studied. The conditions in all fermentations were: total reaction volume 2 L, 132 rev. min-1, 0.5 vvm and pH 6.0. The optimum temperature for enzyme yield for strain NRRL B 512 (F) was 23°C, where at 8-h fermentation was possible to achieve 49.3 DSU/mL. When FT 045 B strain was utilized, 3.2 DSU/mL was obtained at temperature 23 to 25 °C. © 2005 Academic Journals.