Temperature effect on dextransucrase production by Leuconostoc mesenteroides FT 045 B isolated from Alcohol and Sugar Mill Plant
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Data
2005-03-01
Autores
Cortezi, M.
Monti, R.
Contiero, Jonas [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Academic Journals
Resumo
Temperature (23 to 31 degrees 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 degrees 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 degrees C.
Descrição
Palavras-chave
dextran, dextransucrase, Leuconostoc mesenteroides NRRL B512 (F), Leuconostoc mesenteroides FT045 B, temperature, enzyme activity
Como citar
African Journal of Biotechnology. Nairobi: Academic Journals, v. 4, n. 3, p. 279-285, 2005.