Nutritional requirements of Zymomonas mobilis CCT 4494 for levan production

Ernandes, Fernanda Maria Pagane Guereschi; Garcia-Cruz, Crispin Humberto

Ernandes, Fernanda Maria Pagane Guereschi; Garcia-Cruz, Crispin Humberto.

Afiliación

Ernandes, Fernanda Maria Pagane Guereschi; Universidade Estadual Paulista. Instituto de Biociências, Letras e Ciências. Departamento de Engenharia e Tecnologia de Alimentos. São José do Rio Preto. BR
Garcia-Cruz, Crispin Humberto; Universidade Estadual Paulista. Instituto de Biociências, Letras e Ciências. Departamento de Engenharia e Tecnologia de Alimentos. São José do Rio Preto. BR

Braz. arch. biol. technol ; 54(3): 589-600, May-June 2011. graf, tab

Article en En | LILACS | ID: lil-591198

Biblioteca responsable: BR1.1

ABSTRACT

ABSTRACT

The aim of this work was to study the nutritional requirements of Zymomonas mobilis CCT 4494 for levan production in three chemically defined media. During the optimization of the fermentative process for the production of the exopolysaccharide, different concentrations of glucose, fructose and sucrose as carbon source and yeast extract as vitamin source were tested. Variations of incubation temperature and initial pH of the medium were observed. The results showed that medium containing 20.0 percent sucrose and 0.5 percent yeast extract, with initial pH of 7.0, incubated at 30°C gave a 43.0 percent yield of the biopolymer.

Palabras clave

Exopolysaccharide; Levan; Production; Zymomonas mobilis

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Texto completo: 1 Colección: 01-internacional Base de datos: LILACS Idioma: En Revista: Braz. arch. biol. technol Asunto de la revista: BIOLOGIA Año: 2011 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Brasil

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