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Artículo

Bacterial Cellulose from Simple and Low Cost Production Media by Gluconacetobacter xylinus

Vazquez, AnaliaIcon ; Foresti, María LauraIcon ; Cerrutti, PatriciaIcon ; Galvagno, Miguel AngelIcon
Fecha de publicación: 06/2013
Editorial: Springer
Revista: Journal of Polymers and the Environment
ISSN: 1566-2543
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Bioproductos, Biomateriales, Bioplásticos, Biocombustibles, Bioderivados, etc.

Resumen

Bacterial cellulose pellicles were produced by Gluconacetobacter xylinus using non conventional low-cost carbon sources, such as glycerol remaining from biodiesel production and grape bagasse, a residue of wine production. The carbon sources assayed showed their suitability for microbial cellulose production, with relatively high production values such as 10.0 g/l for the culture medium with glycerol from biodiesel as carbon source and corn steep liquor as nitrogen source; and 8.0 g/l for the culture medium containing grape bagasse and corn steep liquor. Glucose, commercial glycerol and cane molasses were also assayed as carbon souces for comparison. The bacterial celluloses produced were characterized by means of scanning electron microscopy, Xray diffraction, Fourier transform infrared spectroscopy and thermogravimetric analysis. Morphological analysis showed that bacterial cellulose microfibrils produced from the non-conventional media used were several micrometers long and had rectangular cross-sections with widths and thicknesses in the range of 35-70 nm and 13-24 nm, respectively. X-ray patterns showed crystallinity levels in the range of 74-79% (area method), whereas both X-ray patterns and infrared spectroscopy evidenced the presence of bands characteristic of Cellulose I polymorph. Thermal properties were similar to those found for the pellicle obtained from glucose. The study performed showed the suitability of using wine residues or glycerol remaining from increasing biodiesel production as cheap carbon sources for production of bacterial cellulose microfibrils, with similar characteristics as those obtained by use of more expensive carbon sources such as glucose or commercial glycerol. On the other hand, the low cost nitrogen sources used (corn steep liquor or diammonium phosphate) also contributed to the economy of the bioprocess.
Palabras clave: Nanocellulose , Bacterial , Production
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/6585
URL: http://link.springer.com/article/10.1007/s10924-012-0541-3
DOI: http://dx.doi.org/10.1007/s10924-012-0541-3
Colecciones
Articulos(IIB-INTECH)
Articulos de INST.DE INVEST.BIOTECNOLOGICAS - INSTITUTO TECNOLOGICO CHASCOMUS
Articulos(INTECIN)
Articulos de INST.D/TEC.Y CS.DE LA ING."HILARIO FERNANDEZ LONG"
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Citación
Vazquez, Analia; Foresti, María Laura; Cerrutti, Patricia; Galvagno, Miguel Angel; Bacterial Cellulose from Simple and Low Cost Production Media by Gluconacetobacter xylinus; Springer; Journal of Polymers and the Environment; 21; 2; 6-2013; 545-554
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