Data/hora: 15/06/2024 01:17:33

Provedor de dados: | 52
País: | Brazil
Título: | Optimization of levan production by Zymomonas mobilis
Autores: | Ananthalakshmy,V. K; Gunasekaran,P.
Data: | 1999-01-01
Ano: | 1999
Palavras-chave: | Levan; Levansucrase; Sucrase; Zymomonas mobilis.
Resumo: | Effect of different fermentation conditions on levan production by Zymomonas mobilis B-4286 was studied. Levan production increased from 5.7-g/l to 12.6-g/l with an increase in initial sucrose concentration (50-150 g/l). Above 15% (20 and 25%) sucrose concentration, there was no increase in the biomass. The sucrose hydrolysis and levan production occurred even in the absence of significant growth of cells. Maximum amount of levan was produced (14.5 g/l) at pH 5 and 15 g /l at 25(0)C temperature. At temperature between 35(0)C and 40(0)C, levan production was not detected. Presence of glucose in the medium considerably reduced levan production (2.8 g/l) than fructose 6.7g/l.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000300004
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89131999000300004
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.42 n.3 1999
Fonte: | info:eu-repo/semantics/openAccess