Utilization of residues from agro-forest industries in the production of high value bacterial cellulose
authors Carreira, P; Mendes, JAS; Trovatti, E; Serafim, LS; Freire, CSR; Silvestre, AJD; Neto, CP
nationality International
journal BIORESOURCE TECHNOLOGY
author keywords Bacterial cellulose production; Agro-forest residues; Carbon sources; Biorefinery
keywords GLUCONACETOBACTER-XYLINUS STRAIN; DIFFERENT CARBON-SOURCES; ACETOBACTER-XYLINUM; MICROBIAL CELLULOSE; WHEY; POLY(3-HYDROXYBUTYRATE); MOLASSES; COLI
abstract Bacterial cellulose (BC), a very peculiar form of cellulose, is gaining considerable importance due to its unique properties. In this study, several residues, from agro-forestry industries, namely grape skins aqueous extract, cheese whey, crude glycerol and sulfite pulping liquor were evaluated as economic carbon and nutrient sources for the production of BC. The most relevant BC amounts attained with the residues from the wine and pulp industries were 0.6 and 0.3 g/L, respectively, followed by biodiesel crude residue and cheese whey with productions of about, 0.1 g/L after 96 h of incubation. Preliminary results on the addition of other nutrient sources (yeast extract, nitrogen and phosphate) to the residues-based culture media indicated that, in general, these BC productions could be increased by similar to 200% and similar to 100% for the crude glycerol and grape skins, respectively, after the addition organic or inorganic nitrogen. (C) 2011 Elsevier Ltd. All rights reserved.
publisher ELSEVIER SCI LTD
issn 0960-8524
year published 2011
volume 102
issue 15
beginning page 7354
ending page 7360
digital object identifier (doi) 10.1016/j.biortech.2011.04.081
web of science category Agricultural Engineering; Biotechnology & Applied Microbiology; Energy & Fuels
subject category Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels
unique article identifier WOS:000292668000018
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journal impact factor 7.539
5 year journal impact factor 7.27
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